Method for determining information parameters and characteristics of transmitters radio signals

FIELD: radio communications.

SUBSTANCE: method includes registering spectrum grams Fi of radio signals in i-numbered points of flight trajectory in frequencies band, including frequency signals with several transmitters in each one, with onboard computer and position measuring means. Spectrum gram of total power of transmitter signal of each j-numbered frequency channel is separated from Fi and powers Mij of these total signals are determined.

EFFECT: higher safety.

3 cl, 3 dwg, 1 tbl

 

The invention relates to telecommunication systems, and more specifically to methods for determining the informative parameters and characteristics of radio transmitters fixed ground radio electronic facilities (RES), mainly aerodrome facilities near field navigation and landing (RBNP) and operating within the service area of the airfield RBNP and who are sources of unintentional interference (APCS) stationary, including a pie and a repeating frequency bands, transmitters RES base stations (BS) network of mobile radio communications (SRC), using a plane-lab (SL), equipped with automated flight control (aslc), vehicle registration spectrograms radio signals (SES) and the onboard computer.

The invention can be used to ensure safety, used to Refine the frequency-territorial plan (CTP), reduce the effects of interfering effects of RES other destination on aerodrome RBNP, definitions and ensure electromagnetic compatibility (EMC), increasing technical and economic efficiency of the communication network, the accumulation of statistical data on the work of these RECs and other

To ensure safety in a mandatory manner and in accordance with Guidelines (1. “Flight testing among the STW communications and RTO aviation forces”, put into effect by order of the Commander air force 22.07.1992, No. 144 and 2. “Flight testing of terrestrial radio engineering flight and communications”, approved by the Deputy Director of the Department of air transport 18.08.1992,) is periodic routine inspection of the aerodrome hardware radio navigation and landing, which measure the informative parameters in ground control points and the flight routes and courses takeoff - landing in the area studied airfield, compare them with the reference measurements and establish the suitability of the aerodrome navigation equipment, and/or landing.

Measured using ACLK informative parameters and characteristics in terms of instrumental committed on Board aircraft - laboratory of electromagnetic environment (EME) are:

- through the channels of the course and glide slope: the angle of glide path; the position of the boundary of prosector glide path relative to the nominal line of glide path; the slope of the output channel glide path; the asymmetry of the slope; area in horizontal and vertical planes and range;

- channel azimuth and range of radio-electronic means range navigation (RSBN): range; the accuracy of determining the azimuth and range on Board; the radius of the “dead zone”; stability testing indications of azimuth and range during the maneuver;

- repeater finder: coverage in the vertical plane at range; the measurement error range.

In Russia and CIS land mobile communications and airfield RES radio navigation and landing use the same allocated frequency band. Before modernization radionavigation field (reassign its frequency code channels) national networks in the aeronautical radionavigation service (ARNS), requiring a huge time and money, there is always the likelihood of unintentional interference airfield (and side) RES radio navigation and landing from RES for other purposes. But in the modernization process and after its completion will require experimental flight research to assess the quality of the navigation field.

The emergence and development of RES for other purposes, primarily AB (“cell”), requires the functional expansion of the previously used methods for determining the informative parameters and characteristics of radio transmitters to verify REFs navigation and/or landing due to the very high priority in the radionavigation service and strict requirements to ensure Bespalova works the networks ARNS, including electronic warfare range navigation (RSBN) and boarding radiobeacon group (PRMG). In addition, you want to improve the efficiency of use of radio frequency resource by optimizing the assignment of frequency-coded channels beacons system RSBN/PRMG and Refine CTP GSM-900 with continued sharing of the frequency range 890-960 MHz.

Known settlement and comprehensive means of determining the electromagnetic environment and EMC DSS with RES other services and other departmental facilities (3. “Electromagnetic compatibility of radio electronic means and unintentional interference”. Issue 1, M, “Sov. Radio”, 1977, section 6.3 and Section 3; 4. Mobile systems, No. 4, 2001, p.47-53; 5. Proceedings of the conference “Development of IMT-2000 in Russia”. Analysis center EMC R & d, Tenerife, December 2001, C-18 19-23; 6. Topical issues of improving the efficiency of use of the national radio frequency resource. Conference materials NRA, 18-20 may 2004).

The required frequency-territorial separation (CTR) between RES - source NFP (PI) and RES - receptor of this interference (RP) is determined as a function of the minimum acceptable distance between the RECs, is dependent on the following variables:

the spacing between frequency receiving device (RPU) RP and the Central frequency of the primary radiation PI;

spatial is asemenea RPU RP (latitude, longitude) and the placement and orientation of FE (latitude, longitude, or distance from the RP, the azimuth directions in RP);

- parameters of the antenna Radome and the transmitting antenna characteristics frequency and polarization selectivity, spatial selectivity/orientation, the losses in the feeder, the height of the suspension, the parameters of its orientation or scan in azimuth and elevation);

- receive path parameters RPU RP - sensitivity (susceptibility) on the main channel of the reception characteristics frequency selectivity and nonlinearity;

parameters transmitter PI - power and characteristics of the spectrum of the output signal;

parameter ruggedness of the terrain or other parameters characterizing the terrain along the route between the IP and RP, vegetation, buildings, terrain conductivity, characteristics of the atmosphere on the same track;

- the level of the useful signal at the input RPU, parameters EMO at the point of placement of the RP criterion EMC IP and RP, including the value of the minimum required protective signal/ interference”;

- location of airfields, flight routes, courses takeoff - landing, schema, perform the landing maneuver, the location of the radio beacon funds, their power, the directional diagrams and other

Most of these values are random, has the Xia priori uncertainty parameters could interfere with the interaction known computational model not perfect. Taking into account real experience of joint operation of the conflicting systems are also inadequate. In such conditions, the radionavigation service may not rely solely on experience and estimates of conditions electromagnetic compatibility and standards CTR.

The closest adopted for the prototype, a method of determining the informative parameters and characteristics of radio transmitters fixed ground radio-electronic means, primarily the aerodrome facilities near field navigation and landing and base stations, mobile radio communications, using research aircraft, equipped with automated flight control, vehicle registration spectrograms of the signals and on-Board computer with a database of parameters required to define the relations of power input logger spectrograms to the output capacity of these transmitters, including those containing information about the geophysical parameters of the earth's surface, the properties of the atmosphere, the frequency channels, the geographical coordinates of the locations and heights of the suspension antennas transmitters relative to the preset level, the absolute gain and the radiation patterns of the antenna with azimuth and elevation angles of the main lobes, the polarizations of the radiation losses in the feeders, the antenna pattern and the losses in the feeder funds registration of the spectrograms of the signals, the digital map and, if necessary, the conditions of urban development, which in flight in various i's points where i varies from 1 to N1space over the territory in the area of the zone of actions of these transmitters of radio electronic facilities automated flight control measure informative parameters and characteristics of radio signals, and vehicle registration spectrograms recorded spectrograms Fipower of radio signals in a given frequency band (f1f2), including j-tide frequency channels with Ljtransmitters in each channel and the well-known normalized in power spectrograms Sjradio transmitters on j-volume frequency channel, where j varies from 1 to N2at each i-th registration measure of geographic location coordinates and the height position of the receiving antenna logger spectrograms with respect to the same fixed level, for example, are located on the same plane-the laboratory by means of location measurement and the results of the analysis of the spectrograms Fiand informative parameters and characteristics of radio transmitters aerodrome radio-electronic means BC is sung navigation and landing judge, including, on the degree of influence on them unintentional interference transmitters of radio-electronic means of base stations of the mobile radio network (7. “Electrosvyaz”, No. 6, 2002, p.23, 24).

The known method does not provide a definition of informative parameters and characteristics of these transmitters in full, because it does not accurately and objectively apply it in the creation of unintentional interference airfield RBNP electronic means, SRC, base stations which are equipped with transmitters with repetitive frequency bands. In this case, the CDS registers on each j-that frequency channel, the total capacity of the radio signals of all Ljtransmitters operating on this channel, and the known method does not allow you to select the output power of each k-transmitter j-channel Pjkand thereby to determine the contribution of each transmitter in the total capacity of APCS. This greatly complicates and increases the cost of refinement CTP and ensure absolute safety.

The invention is aimed at ensuring the safety, refinement CTP, reducing the effect of interfering effects of RES other destination on aerodrome (and side) RES radio navigation and landing, the definition and provision of electromagnetic compatibility, the increase in technical what about the economic efficiency of the communication network through flight research EMO in the area of the airfield RES radionavigation and/or landing in the real world.

A distinctive feature of the claimed invention from the prototype is that it allows you to define APCS and areas of their registration, to identify these areas and sources of interference, to determine their capacity, including, equipping the base station sector and with repeating bands of operating frequencies of the transmitters, to determine the power of each transmitter and its contribution to the total capacity of APCS and use when you reschedule parameters RES PI unacceptable levels.

The method that contains the essential features of the prototype: in flight in various i's points where i varies from 1 to N1space over the territory in the area of the zone of actions of these transmitters RES automated flight control measure informative parameters and characteristics of radio signals, and vehicle registration spectrograms recorded spectrograms Fipower of radio signals in a given frequency band (f1f2), including j-tide frequency channels with Ljtransmitters in each channel and the well-known normalized in power spectrograms Sjradio transmitters on j-volume frequency channel, where j varies from 1 to N2at each i-th registration measure of geographic location coordinates and the height position of the receiving antennas is s logger spectrograms with respect to the same fixed level, for example, are located on the same plane-the laboratory by means of location measurement and the results of the analysis of the spectrograms Fiand informative parameters and characteristics of radio transmitters aerodrome radio-electronic means near field navigation and landing judged, including the degree of influence on them unintentional interference transmitters of base stations of the mobile radio network.

Other significant distinctive features of the prototype, the signs are the following:

check spectrograms Fiproduce the number of N1not less than the greatest of the numbers of transmitters Ljat each i-th register of the spectrograms Fithe output signal of the logger spectrograms served on the input of the first processor on-Board computer, in the first processor to produce a channel-by-channel selection and for each j-frequency channel allocated from the spectrogram Fithe spectrogram of the total power of signal transmitters on the j-volume frequency channel, and determine the capacity of Mijthese aggregate signals from the condition of minimization of the integral

allocated to the first processor, the values of Mijand measured the geographic coordinates of the locations and heights of the provisions of the receiving antenna logger Spectron the mm accumulate in the storage device for all i from 1 to N 1and upon completion of the accumulation output of the storage device to the input of the second processor on-Board computer provides alerts about the location of the antenna logger spectrograms when i's registrations of the spectrograms, and from the database on-Board computer enter in the same processor parameters to determine relations of power input means registration of the spectrograms of the output powers of the transmitters and produce the definition of the relations Qijksignal power k-mentioned transmitters on j-mentioned frequency channels received at the input means of the registration of the spectrograms, to their power outputs in the i-form registrations spectrograms Fidefined in the second processor, the values of Qijkaccumulate in the storage device, then for each j-channel signals values of Mijand Qijkfor all i served with output storage device to the input of the third processor on-Board computer and emit output power of each k-transmitter j-channel Pjkfrom the condition of minimization of the expression

Values of Fi, Mijand Pjkexpressed in units of power.

Also on the territory of the zone of action of these transmitters to at least one transmitter, adopted what about as a reference, transmit a radio signal with a known power output the selected output power of the transmitter is compared with the known and the comparison result is judged on the accuracy of the output powers of the transmitters.

In addition, sampling of selected values of Mijand Pjksubjected to statistical analysis associated with the determination of their mathematical expectation and confidence limits.

The proposed method due to the release of the power of each k-transmitter j-frequency channel, produced simultaneously with the measurement aslc informative parameters and characteristics of flight, reception areas interference, identify their sources can systematically and optimally conduct the definition of informative parameters and characteristics of the transmitters airfield RES radionavigation and/or landing and RES DSS and thanks to reschedule parameters RES sources APCS and build a quasi-optimal frequency-territorial plan of the network connection.

Below the invention is described in more detail with reference to the drawings and a table illustrating an implementation of the claimed method.

Figure 1 illustrates schematically the implementation of the method, figure 2 shows an example of the measured spectrogram Fipower of radio signals in a given frequency band (f1f2), including j-tide frequency channels with L transmitters in every known and normalized in power spectrograms Sjradio transmitters on j-volume frequency channel, and the calculated mathematical expectation of superposition the total capacity of the frequency channels. This figure shows the selected spectrogram of the total power of signal transmitters on the j-volume frequency channel, and confidence intervals for the mathematical expectation. Figure 3 presents a digital map of the area of one of the regions indicated by the base stations (for example on a few of them are depicted sector, which employ transmitters), large circles marked airfields, and flags - the course of the flight laboratory at the height of 300 meters, which was measured spectrograms Fipower of radio signals in a given frequency band (f1and f2); one of the spectrograms shown in figure 2. The table presents selected by the present method output power (equivalent isotropic radiated power (EIRP)of each k-transmitter j-channel Pjkknown valid values EIRP of these transmitters and statistically certain EIRP values for the upper and lower confidence boundaries.

In some areas, in particular in large cities EMO complicated fu is from a few airfields, equipped with a ground beacon system RSBN/PRMG. An objective way to remove restrictions on the use of a DSS specific frequencies and to ensure the most efficient use of frequency resources in networks AB, is conducting a comprehensive settlement and full-scale flight research real EMO and definition of the conditions to ensure EMC SRC with the airfield and airborne RES radionavigation and/or landing.

The objects for which informative parameters are determined and the characteristics of the radio transmitters are airfield RES near navigation and/or landing UHF range, for determining the location of the aircraft in azimuth and distance to a ground beacon, ensuring that pre-maneuver and landing and functioning in the conditions of real EMO in terminal areas, created a working RES base stations networks AB.

The ultimate purpose of flight research are:

- Evaluation of real EMO in matching frequencies funds RSBN/PRMG and stations network AB.

- Determination of the degree of influence of electromagnetic radiation (primarily network stations DSS) on the RES system RSBN in the “Navigation” and “Landing” for real EMO perform operations on the territory, identifying the source of invalid the x interference.

- Development using the results of a comprehensive research proposals for the refinement of CTP networks AB in the area and determining the possibility of removing the previously imposed restrictions for the RES of the network and increase the number of working channels.

- Implementation of objective control operation of the RES AB on the frequency channels provided to the flight of experimental research.

The method consists in the following.

As in the prototype, the aircraft-laboratory (SL), feature (1) automatic flight control system 1 (aslc), vehicle registration spectrograms radio 3 (CDS) with a receiving antenna 2, the on-Board computer (BC) 4 database 5 and, for example, are located on the same TEXT by means of location measurement 6 (but

it may have a ground location) flying on the set profiles (routes, altitude), characteristic of running in the studied area of the aerodrome, and in various i's points where i varies from 1 to N1space over the territory in the area of range of the transmitters (see figure 3) automated flight control measure 1 informative parameters and characteristics of these signals and judge him according airfield RES radionavigation and/or landing regulatory conditions may the tee of their use. The registration tool spectrograms 3 at the same points recorded spectrograms Fipower of radio signals in a given frequency band (f1f2), including j-tide frequency channels with Ljtransmitters in each. While always known in advance of the normalized power spectrum Sjradio transmitters on j-volume frequency channel, where j varies from 1 to N2. At each i-th reception means for measuring the location and height of 6 measure of geographic location coordinates and the height position of the receiving antenna 2 a logger spectrograms 3 relative to the preset level. Radio signals can be taken at the receiving antenna 2, which is supplied with the logger spectrograms 3, and to connect this tool 3 to aircraft standard antenna-feeder system, making the necessary amendments. When determining the informative parameters and characteristics of radio transmitters used are stored in the database 5 computer 4 parameters required to define the relations of power input means registration of the spectrograms of the output powers of the transmitters, including those containing information about the geophysical parameters of the earth's surface, the properties of the atmosphere, the frequency channels, the geographical coordinates of the place is alouni and suspension height of the antennas of the transmitters relative to the preset level, the absolute gain and the radiation patterns of the antenna with azimuth and elevation angles of the main lobes, the polarizations of the radiation losses in the feeders, the antenna pattern 2 and the losses in the feeder funds registration of the spectrograms of the signals 3, digital map and, if necessary, the conditions of urban development.

The results of the analysis of the spectrograms Ficapacity and informative parameters and characteristics of radio transmitters aerodrome ground electronic means near field navigation and landing enough to accurately and impartially judge the degree of influence on them unintentional interference transmitters RES base stations SRC in the absence of transmitters with a repeating frequency bands. If the transmitters are, as already noted, the CDS registers on each j-that frequency channel, the total capacity of the radio signals of all Ljtransmitters operating on this channel, and the known method does not allow you to select the output power of each k-transmitter j-channel Pjkand thereby to determine the contribution of each transmitter in the total capacity of APCS and to identify transmitters, creating unacceptable levels of APC.

In this most common situation along with the above prototype etc who bring forth below.

At each i-th register of the spectrograms Fithe power of the output signal of the logger spectrograms 3 (figure 1) serves to input the first processor 8 on-Board computer 4, the processor produce a channel-by-channel selection and for each j-frequency channel allocated from the spectrogram Fipower spectrogram of the total power of signal transmitters on the j-that frequency channel. Power Mijthese aggregate signals determined from the condition of minimization of the integral

(for example, by the method of least squares). In order to increase the accuracy of determination of the corresponding system of equations must be overridden, so check spectrograms Fipower produced in the number of N1not less than the greatest of the numbers of transmitters Lj.

Selected and statistically processed together with the first processor 8 values of Mijand measured the geographic coordinates of the locations and heights of the provisions of the receiving antenna 2 a logger spectrograms 3 accumulate in the storage device 9 for all i from 1 to N1. Upon completion of the accumulation output of the storage device 9 to the input of the second processor 10 on-Board computer 4 provides alerts about the location of the antenna 2 logger with whom ectogram 3 when i's registrations of the spectrograms, and from the database 5 on-Board computer 4 is introduced into the same processor 10 parameters to determine relations of power input logger spectrograms 3 to the output powers of the transmitters. In the second processor to produce the definition of the relations Qijksignal power k-mentioned transmitters on j-mentioned frequency channels at the input of the logger spectrograms 3, to their power outputs in the i-form registrations spectrograms Fi. Defined in the second processor 10 values of Qijkaccumulate in the storage device 9. Then, for each j-channel signals values of Mijand Qijkfor all i served with the output of the storage device 9 to the input of the third processor 11 on-Board computer 4. The CPU 11 release (and statistically processed) output power of each k-transmitter j-channel Pjkfrom the condition of minimization of the expression

(for example, using the method of least squares).

Values of Pjkand other information parameters and characteristics of radio transmitters display on the corresponding tool 7.

To control the accuracy of the output powers of the transmitters in the same area in the range of the transmitters to at least one the th transmitter, adopted as a reference allocated by the claimed method output power of the transmitter is compared to its known power output and the comparison result is judged on the accuracy of the proposed method, the output powers of the transmitters.

In the process of calculation and experimental studies to determine areas with unacceptable levels of unintentional interference and in these zones identify the sources of such units.

This allows you to eliminate their interfering effect on the operation of the aerodrome radio-electronic means of navigation and/or landing and airborne radio-electronic means of navigation and/or planting, for example, by using replanning of parameters of radio-electronic means of sources of unintentional interference unacceptable levels. Reduction of APCS to acceptable regulatory levels protective of “signal to noise ratio” is carried out, affecting, for example, on the parameters of the transmitting antenna PIS (the height of the suspension, its mechanical and electrical tilts, determining the orientation of the radiation, the orientation in the specified sector and others) and on the parameters of the transmitter FE (power and characteristics of the spectrum of the output signals). While the source of the interference (if RES DSS) must retain in the service area of radio coverage and to provide intersystem EMC and EMC the airfield (and airborne) radio-electronic means of navigation and/or landing. After you change the settings of the sources of unintentional interference determination informative parameters and characteristics of radio transmitters, if necessary, repeat, and if you cannot resolve prevent unintentional interference source is turned off.

The inventive method has been tested, in particular, in one of the regions (figure 3) when checking the airfield and on-Board radio-electronic means of navigation and/or landing and EMC with RES local DSS. We have been using SL “Yak-40”, designed for flights of radio-technical means for ensuring safety and are equipped with automated determination of parameters and characteristics of the equipment during flight aslk-75M. As a means of registration of power spectrograms were used spectrum analyzer radio E-W Hewlett, Packard and PC processors with special software for automated collection and processing of experimental data required for the analysis of real EMO. Vehicle location measurement was set aboard SL GPS receiver. Was determined informative parameters and characteristics of radio transmitters RES by the claimed method and evaluated the degree of influence of radio stations network on DSS radio system SSR is/ PRMG in the “Navigation” and “Landing” in real flight conditions aircraft on the airside. These studies allowed us to test the ability of the airfield and airborne RES radionavigation and/or planting to run on dedicated channels in terms of NPR, to develop proposals for the refinement of CTP and efficient use of the frequency resource. The result of testing positive way.

We illustrate in figure 2 and table the effectiveness and efficiency of the implementation of the proposed method.

Figure 2 shows an example of the measured spectrogram Fi(line 1) power of radio signals in a given frequency band (f1f2), including j-tide frequency channels with Ljtransmitters in each. Ibid (line 2) are calculated using the well-known normalized power spectrograms Sjpower radio transmitters on j-mentioned frequency channels, the mathematical expectation of superposition the total capacity of the frequency channels. As an example, for 80%condence region lines 3 and 4 show the upper and lower confidence limits, respectively. Measured and calculated spectrum coincide with high accuracy. This figure shows the selected spectrogram (line 5) total power signal transmitters on one of j's frequency channels.

The table presents selected and statistically processed in the third is rocessor 11 output power/equivalent isotropic radiated power (EIRP) of each k-transmitter j-channel P jk(in this channel worked 7 transmitters), as well as well-known these transmitters EIRP and EIRP defined by the upper and lower confidence boundary. As can be seen, the accuracy of the allocation of output power/ EIRP is very high.

Using the proposed method allows to determine in real working conditions transmitters SRC repeating frequency bands output power of each transmitter, to ascertain the contribution of each in the total capacity of CHP in the measuring point Fiand, if necessary, reschedule the parameters of electronic funds sources APC unacceptable level, to ensure absolute safety, but also to solve a number of other tasks the radio.

Thus, the distinctive features of the proposed method of determination of informative parameters and characteristics of radio transmitters mainly land aerodrome RES near field navigation and landing and which is for them a source of APCS stationary transmitters of base stations SRC ensure the emergence of new properties that are not achievable in the prototype and the like. The analysis has allowed to establish: analogues with a set of characteristics is identical for all features of the claimed technical solution is available, which indicates that conform to the procedure of “novelty”.

The results of the search of the known solutions in the field of communication in order to identify characteristics that match the distinctive features of the prototype of the characteristics of the claimed method, showed that they do not follow explicitly from the prior art. Also revealed no known effect provided the essential features of the claimed invention of actions to achieve a specific result. Therefore, the claimed invention meets the condition of patentability “inventive step”.

1. The method of determining the informative parameters and characteristics of radio transmitters fixed ground radio electronic devices (NSDS), mostly aerodrome facilities near field navigation and landing, and base stations, mobile radio communications, using research aircraft, equipped with an automated control system, vehicle registration spectrograms of the signals and on-Board computer with a database of parameters required to define the relations of power input logger spectrograms to the output capacity of these transmitters (NSDS), which in flight in various i's points where i varies from 1 to N1space over the territory in the area of range transmitters NSDS, the automated system of control measure information is exploring the parameters and characteristics of radio signals, and vehicle registration spectrograms recorded spectrograms Fipower of radio signals in a given frequency band (f1-f2), including j-tide frequency channels Ljtransmitters NSDS in each channel and the well-known normalized in power spectrograms Sjradio transmitters on j-volume frequency channel, where j varies from 1 to N2at each i-th registration measure of geographic location coordinates and the height position of the receiving antenna logger spectrograms to the set level of the suspension of the antenna transmitters NSDS, for example, are located on the same plane-the laboratory by means of location measurement and the results of the analysis of the spectrograms Fiand informative parameters and characteristics of radio transmitters aerodrome radio-electronic means near field navigation and landing judged, including the degree of influence in the i-th point of space unintentional interference transmitters of radio-electronic means of base stations of a mobile radio network, wherein the registration of the spectrograms power radio signals Fiproduce the number of N1not less than the greatest of the numbers of transmitters Ljat each i-th register of the spectrograms Fithe output signal of the environments is TBA registration spectrograms served on the input of the first processor on-Board computer, in the first processor to produce a channel-by-channel selection and for each j-frequency channel allocated from the spectrogram Fithe spectrogram of the total power signal transmitters NSDS working on j-volume frequency channel, and determine the capacity of Mijthese aggregate signals from the condition of minimization of the integral

allocated to the first processor, the values of Mijand measured the geographic coordinates of the locations and heights of the provisions of the receiving antenna logger spectrograms accumulate in the storage device for all i from 1 to N1and upon completion of the accumulation output of the storage device to the input of the second processor on-Board computer provides alerts about the location of the antenna logger spectrograms when i's registrations of the spectrograms, and from the database of the on-Board computer, enter the second processor parameters to determine relations of power input means registration of the spectrograms of the output powers of the transmitters and produce the definition of the relations Qijksignal power k-mentioned transmitters on j-mentioned frequency channels received at the input means of the registration of the spectrograms, to their power outputs in the i-form registrations spectrograms Fiwhile identifying the data in the second processor, the values of Q ijkaccumulate in the storage device, then for each j-channel signals values of Mijand Qijkfor all i served with output storage device to the input of the third processor on-Board computer and emit output power of each k-transmitter NSDS j-channel Pjkfrom the condition of minimization of the expression

2. The method according to claim 1, characterized in that on the territory of the zone of action of these transmitters to at least one transmitter NSDS taken as the reference, the transmit signal with a known power output selected in the on-Board computer power output of this transmitter is compared with the known output power and the comparison result is judged on the accuracy of the output powers of the transmitters.

3. The method according to claim 1 or 2, characterized in that the sample selected values of Mijand Pjksubjected to statistical analysis associated with the determination of their mathematical expectation and confidence limits.



 

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3 dwg

FIELD: satellite navigation; location of position of mobile objects in space.

SUBSTANCE: "m" monitoring and correcting stations are formed around TV center, where "m" is any integer of navigation spacecraft forming local differential corrections which are transmitted to TV center via radio channel and then to mobile object through TV center transmitter without impairing present broadcasting; mobile object determines its coordinates by signals of navigation spacecraft with local differential corrections taken into account; coordinates thus determined are transmitted to TV center via radio channel and then they are transmitted to traffic control station; traffic control signals formed at traffic control station are transmitted together with coordinates of mobile object to nearest dispatching station by satellite communication channels where target designation signals are formed and are transmitted to mobile object.

EFFECT: enhanced precision of positioning and possibility of performing control of mobile objects.

1 dwg

Airborne repeater // 2251214

FIELD: communications engineering.

SUBSTANCE: proposed repeater that can be used in satellite communication systems operating in ultrahigh-frequency band has antenna-feeder assembly, receive and transmit filter unit, up and down frequency converters, power amplifiers, transmission channel multiplex switch, reference generator, signal regeneration device, simulation protective unit, control device, and cross-connection circuit.

EFFECT: enlarged functional capabilities of airborne repeater.

7 cl, 2 dwg

FIELD: game systems with robots.

SUBSTANCE: proposed system has game section installed in space equipment, game robots disposed within game section, control signal, device for transmitting control signal received from the Earth to game robots, video shooting camera for shooting game section whose photo is used as section image; game signal transmitter transferring game image to the Earth as game signal; control signal transmitter disposed on the Earth and used to transmit control signal applied by game robot operators to control signal transmitter; game signal receiver disposed on the Earth and used to receive game signal from game signal transmitter; broadcast equipment for broadcasting game signal received by game signal receiver.

EFFECT: investigations of environment properties.

9 cl, 1 dwg

FIELD: signal power evaluation.

SUBSTANCE: signal is compared with plurality of bands and separated into plurality of bands. Each band is assigned definite output value. Output values approximate square of output signal value proceeding from known characteristics of input signal. Low-pass filter is used for averaging plurality of output values.

EFFECT: eliminated satellite overloading and violation of flow density limits.

21 cl, 5 dwg

FIELD: communications engineering; satellite communication systems.

SUBSTANCE: list identifying plurality of shared data channels transmitting shareable information is generated in satellite communication system incorporating gateway and plurality of satellites moving in orbit so that they are not stationary relative to point on the Earth surface. This list may include information for each of plurality of shared data channels that identifies predetermined satellite, beam, frequency, and channel. List changes with time due to orbital movement of satellites. Proposed method also includes steps of shareable information transfer to geographical region through gateway over plurality of shared data channels and reception of shareable information over at least one of plurality of shared data channels by user terminal.

EFFECT: provision for transferring shareable information to group of users located within relatively small geographical area.

41 cl, 9 dwg

FIELD: communications engineering.

SUBSTANCE: proposed system has user terminal, gateway, and plurality of beam sources radiating plurality of beams, communication line between user terminal and gateway being set for one or more beams. Proposed method is based on protocol of message exchange between gateway and user. Depending on messages sent from user to gateway, preferably on pre-chosen periodic basis, gateway determines most suited beam or beams to be transferred to user. Messages sent from user to gateway incorporate values which are, essentially, beam intensities measured at user's. Gateway uses beam intensities measured at user's to choose those of them suited to given user. Beams to be used are those capable of reducing rate of call failure and ensuring desired separation level of beam sources.

EFFECT: reduced rate of call failure in multibeam communication system.

20 cl, 27 dwg

The invention relates to the field of landing aircraft (LA) based on satellite navigation systems (SNS) GLONASS, GPS, GNSS, and can be used to equip unequipped radiobeacon boarding means airfields and helipads, which is achievable technical result

The invention relates to radio engineering and is intended for use in radio communication

The invention relates to a telecommunication system

The invention relates to satellite systems, mainly regional, communications

The invention relates to electronic means of determining the direction, location, measurement of the phase shift using diversity antennas

FIELD: communications engineering.

SUBSTANCE: proposed system has user terminal, gateway, and plurality of beam sources radiating plurality of beams, communication line between user terminal and gateway being set for one or more beams. Proposed method is based on protocol of message exchange between gateway and user. Depending on messages sent from user to gateway, preferably on pre-chosen periodic basis, gateway determines most suited beam or beams to be transferred to user. Messages sent from user to gateway incorporate values which are, essentially, beam intensities measured at user's. Gateway uses beam intensities measured at user's to choose those of them suited to given user. Beams to be used are those capable of reducing rate of call failure and ensuring desired separation level of beam sources.

EFFECT: reduced rate of call failure in multibeam communication system.

20 cl, 27 dwg

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