Control system parameters radios
(57) Abstract:Control system parameters radios intended for use in the process of setting up and controlling for serial and mass production. The system contains a set of centralized generators CGS, the number of which is determined by the selected control methods. In the system frequency CGS shifted in frequency relative to the working frequency bands, and jobs contain at least one transfer unit of frequency, switch, and communication lines to generators CGS driven frequency generator, the device standardization of the signal level of the radio. The output of the radio device is connected analysis of the output signal, the indicating unit. Transfer spectra frequencies CGS in operating ranges of the radio is made by changing the frequency entered generator, and the introduction of advanced modulation generator allows you to quickly and independently at each workplace to change the modulation parameters entered generator and to modify the characteristics of the input signal to the radio. When the control parameters of superheterodyne receivers there is a link between the frequency of the local oscillator of the radio, and often the school technique and can be used to adjust and control the parameters of the radios and high-frequency blocks in serial and mass production of radio and television equipment.Setting up radios and control parameters are manufactured using high-frequency test signals, spectral composition and levels are defined in the relevant standards and technical specifications for products. The choice of means and standard design non-standard measuring equipment are dependent on the scale of production. Currently, the most effective as performance, and the quality control parameters of the radios is equipment, which is implemented mnogorigelnyj method of control parameters. The control system incorporates a generator-synthesizer complex signal, "useful part" which automatically adjusts the frequency mid bandwidth of the radio, using information about the frequency of the local oscillator of the radio. Simultaneously to the input of the radio receiver receiving frequency of the additional signal-jamming with different modulation parameters and the corresponding shifts in frequency from the main signal. Analysis of the output signal of the receiver determine the parameters of linear and nonlinear selectivity, sensitivity, linear and nonlinear distortion.
where FCGSthe carrier frequency generator CGS;
F1 is the carrier frequency of the first generator.For Superga is R>FtoFgFFCFcm, (2)
where Fgthe frequency of the local oscillator of the receiver;
Fcmthe offset frequency from the carrier main receiving channel corresponding to the controlled (main, adjacent, mirror, additional and so on) the receive channel defined test methods and specifications for the receiver. In particular, for the main receive channel offset frequency Fcmzero for mirrored channel superheterodyne receiver Fcmequal to the largest 2FFCand so onFrom expressions (1) and (2) that the frequency of the control channel receiver Ftoat a particular offset Fcmand the selected carrier frequency FCGSis determined by the value of the carrier frequency of the first generator, and the formation of a certain input signal of the receiver, characterized by the value of the carrier frequency, type and magnitude of the modulation is possible by selecting the appropriate carrier frequency FCGSwith a certain type and magnitude of the modulation, and the changing of the carrier frequency, the type and value of the modulation introduced the first generator connected to the transfer unit frequency CGS.Except, maybe, the simplest variant is R with invariant in time parameters and spectrum shift generator CGS is controlled in the receiving channels of the receiver by means of the transfer unit frequency by changing the frequency of the first generator without the use of switch signals CGS, perhaps the formation of a qualitatively different input signals of the receiver by the change in time of the output parameters of CGS: carrier frequency, the type and amount of modulation. Information about the changes in time of the signal CGS can optionally enter the workplace on separate lines.The presence of a switch included in the channel forming the input test signal receiver, between generators CGS and receiver input connected to the control device of the workplace allows independently, at each workplace, at any point in time to form at the receiver input high-frequency signal with the modulation parameters used in the generators CGS and, probably, in most cases, it is advisable for economic reasons, to design the proposed control system with the method of the modulation generators CGS and generate the test signal receiver in the workplace regulator transfer the selected switch of the spectrum of the generator CGS on the monitored channel receiving frequency change of the first generator, connected to the second input of the transfer unit of frequency.The carrier frequency generators CGS modulated razlichnykh parameters of the same control channel receiver, can be the same or different from each other technically feasible values of the offset frequency. In the latter case, the spectrum shift generator CGS selected by the switch on the controlled channel reception can be a corresponding change in frequency of the first put of the generator, and the technical advantage here would be the elimination of a considerable extent of the problems associated with cross-passage signals CGS lines CGS with jobs, compared with the case where the carrier frequency generators CGS used to control various parameters (for example, the real sensitivity and uneven frequency response through path) of the same control channel receiver, not offset.The proposed control system supports two-signal, and mnogorigelnyj methods of control parameters of the selectivity of the receiver. At the workplace is at least one transfer unit of frequency, the first input of which is connected through the introduction of a managed switch to one of the generators CGS generating a signal corresponding to the interference, and the second can be connected to the output of the first or entered generator, or the output is of the input signal of the receiver when implementing on the considered control system mnogogrannogo method of control selectivity. In one embodiment, the carrier frequencies used generators CGS to generate the input signal of the receiver is shifted by an arbitrary (technically feasible) distance according to frequency. In this case, the transfer of spectrum signals CGS for each of the channels used for the control of the receiver (for example, if you control two-signal selectivity adjacent signal in the two channels forming a test signal to the receiver generated signal for the main channel of reception and signal interference to adjacent channel) is made by setting a frequency of the first put of the generator in accordance with the expression (1) description and, hence, the number of first generators here will be equal to the number of the number of channels of the formation of the test signals. In another embodiment, it is possible to use generators CGS shifted by the carrier frequency at fixed values, standards, and monitoring parameters selectivity mnogogrannom method of control. In this case, can be used one first entered the generator, and the required number of generators CGS must at least be one more than the number of controlled selectively. The choice of frequencies CGS are introduced managed the Finance of the input test signal is possible as frequency modulation of the first put of the generator, and modulation generator CGS. In the latter case, the modulating generators CGS low-frequency signals, or information about that individual lines to enter the jobs of the regulator to ensure synchronization of the display device of the analyzing device used in panoramic method of monitoring parameters.The drawing shows a structural system electrical circuitry of the control parameters of the receiver.The control system contains CGS 1, workplace options 2, 3, 4, connected to the generator CGS 1 lines 5, and jobs 2 and 3 are connected to the generators CGS 1 through a managed switch 7. Each workstation contains a controlled receiver 6, a first transfer unit frequency 8, first introduced controlled oscillator 9, the unit normalization of the input signal of the receiver device 10 analysis of the output signal of the receiver 11, the control unit 12. Variant workplace 4 contains in addition, a phase detector 13, the second introduced the transfer unit frequency 14 and the second entered generator 15.Control system parameters receiver operates as follows. In one embodiment of the organization system control Chinii connection 5 and a managed switch 7 is coming to jobs controllers 2 and 3. The workplace 4 the signal generator output CGS directly. Jobs 2 and 4 contain one channel generate the input signal of the receiver and the workplace 3 contains two channel formation and it implements a two-signal method of control. Each of the channels forming the input signal of the receiver workplace 2 and 3 is connected in series to the transfer unit frequency CHS 8 and device for regulation of the input signal of the receiver, and the first inputs of the blocks of the transfer frequency is connected through the switch 7 to the generator CGS 1, and output devices regulation input level 10 is connected to the input of the receiver. In the workplace 3 the signal at the receiver input comes from the output of device regulation through a summation device 16. The second input transfer unit frequency connected to the output of the first put of the generator 9, a control input connected to the control unit 12 of the workplace. Control signals from the control unit 12 receives the switch signal CHS 7 and device regulation input signals of the receiver 10.The output signal of the receiver is fed to the unit of analysis 11. The unit of analysis is the processing and analysis of the output of the fir diagnose controlled parameters, to assess their level. The unit of analysis is also used to set the receiver in terms of measurement parameters, which correspond to the accepted methods of control, i.e., using equipment analysis device sets the output level of the receiver, setting the tone controls, balance, tuning into the middle of the bandwidth, etc. In a simple case, the unit of analysis may be a meter or simply the presence indicator signal at the output of the receiver. The communication unit of analysis 11 to the control unit 12 or to other blocks of the system may not exist or be exercised by the regulator, when the evaluation of output from the unit of analysis, the regulator makes a decision about changing the conditions of the measurement parameter using available (for example, via the control unit) blocks of the control system.The control parameters of the receivers at the workplace 2 and 3 as follows. The traffic controller through the control unit 12 which communicate with the switch signals CHS 7, the generator 9, the device of the regulation of the input signal 10, sets the input signal of the receiver the desired spectral composition and level, and the selection of a particular signal CGO of the control channel reception) is performed by setting the frequency of the first put of the generator 9, setting the input level of the receiver control device for regulation of signal 10. Then install a receiver in the control conditions corresponding to the accepted method of control parameter, i.e., sets of controls receiver: controls output level, balance, bass & treble controls so you can use the unit of analysis. Next is the count value of the controlled parameter of the indicator unit of analysis 11 or assessed or registration option in response to the input test signal to the receiver.When the control parameters of the superheterodyne receiver in the system for the purpose of automating the configuration of the receiver in the middle of the bandwidth as informative can be used, the frequency of the controlled oscillator of the receiver. In the structural diagram of the connection between the receiver 6 (the frequency of its local oscillator, for example) and first introduced, the generator 9 (frequency) via the control device 12. In this case, jobs can be supplemented by a frequency counter for measuring the frequency of the local oscillator of the receiver, and as the first controlled oscillator may be used in the t set the frequency of the first controlled oscillator in the system configuration process: "generator CGS receiver", provided in the workplace 4. Here managed the first generator 9 is included in the ring PLL. The control input of the generator 9 is connected to the output of the introduced phase detector 13, the first input of which is connected to the local oscillator of the receiver, and the second to the output of the second introduced transfer unit frequency 14. The first input is entered transfer unit frequency 14 is connected to the generator 9 and the second input is introduced to the second generator 15. The frequency of the second put of the generator 15 is determined from the expression:
where FCGSfrequency equal to the carrier frequency CGS that is transferred to the controlled channel reception;
FFCintermediate frequency of the receiver.When the specific location of the carrier frequencies CGS about the working frequency of the monitored receiver the choice of the sign before the value of the intermediate frequency FFCdepends, above or below the frequency of the local oscillator of the receiver tuning frequency of the main receiving channel of the receiver. Under this condition, when normally operating the ring PLL, the output of the second transfer unit frequency 14 will set the frequency equal to the frequency of the local oscillator of the receiver, and the output frequency is controlled first wedenig the Scriptures. This will configure the signal generator CGS in the middle of the bandwidth of the receiver with the error defined almost the tolerance on the value of the intermediate frequency of the receiver. The generator 15 may be common to all jobs and to be part of the set of generators CGS. If it is necessary to consider the actual value of the intermediate frequency of the receiver and to fine-tune the receiver to the middle of the strip passing it, or to form the output frequency transfer unit frequency 8 for control of various receiving channels of the receivers, using only one (or at least a smaller set of generators CGS) generator CGS, generator 15 may be installed on the workstation and change the settings of the input signal of the receiver, changing only the frequency of this oscillator signals from the control unit 12.Thus, the proposed control system parameters of the receiver decides the most expensive task metrological support of production REA the task of creating the input test signal receiver. The control system receivers are distinguished by high technical and economic characteristics, because the build system, its structure provide sravnitel point working range of the receiver, using a variety of quality signals CGS. The cost of each equipment of the workplace, i.e. the cost of its constituent units and devices may be optimized by placing in accordance with the requirements of a specific workplace settings and the quality of the synthesized test signal.According to the proposed technical solution is developed control system parameters receivers and experimental operation. The proposed control system parameters receivers supports most of the known methods of control parameters of the receiver and has the qualities to become the standard tool of control in the industry. 1. Control system parameters radios, containing centralized signal generator, connected to a communication line with the workplace of controllers, each of which contains consistently connected the power rating of the input signal of the radio, the radio, the unit of analysis of the output signal of the radio receiver and control unit, wherein the Central frequency of the signal generator offset of the control channel of the radio, working on michem the first input of the first transfer unit of frequency is the entrance workplace regulator, the output of the transfer unit frequency connected to the input of the unit normalization of the input signal of the receiver, and the output of the control unit, through the introduction of a controllable oscillator connected to the second input of the first transfer unit frequency.2. The system under item 1, characterized in that tsentralizovannye the signal generator is connected by a communication line with employment regulations through the introduction of the switch, the control input of which is connected to the output of the control unit of the relevant workplace regulator.3. The system under item 1, characterized in that the input-driven generator included in the ring phase-locked loop, and the input entered controlled oscillator connected to the output of the introduced phase detector, the first input of which is connected to the local oscillator of the radio receiver, the output to the input of the controlled oscillator and a second input connected to the output of the additionally introduced the second transfer unit frequency, the first input of which is connected to the output of the controlled oscillator and the second input to output added generator.
FIELD: radio communications.
SUBSTANCE: pulse noise is detected upon conversion of signal received into intermediate frequency, noise active time is determined, information signal is disconnected from amplifier incorporated in superheterodyne receiver, noise-affected part of information signal is recovered by eliminating simulator signals during extrapolation, and superheterodyne receiver is checked for serviceability at intermediate frequency.
EFFECT: enhanced precision of superheterodyne receiver serviceability check.
1 cl, 1 dwg
FIELD: radio engineering; diagnostics and repairs of radio equipment.
SUBSTANCE: proposed method includes recording of current criteria of radio and video communication channel conditions, their comparison with desired reference values, elimination of faults detected, and check tests for signals in electric and low-current circuits, replacement of faulty electric and low-current harnesses, units, and assemblies, checkup for signals in circuits of automatic-control, measuring, and recording system and checking-and-recording equipment, and checkup of circuits for normal functioning, whereupon pieces of equipment are subjected to accelerated aging by thermal and mechanical impacts.
EFFECT: enlarged functional capabilities and enhanced reliability of condition inspections.
FIELD: instrumentation engineering; serviceability check of multichannel communication systems.
SUBSTANCE: proposed equipment includes personal computer, multiplexing switch, circuit checkup unit, control unit, multichannel comparison unit, virtual standard, switching unit, output signal shaper, multiplexer, and normalizing unit that has voltage meter and circuit meter.
EFFECT: enlarged functional capabilities of device.
3 cl, 1 dwg
FIELD: multi-channel communication systems.
SUBSTANCE: equipment has comparison block, virtual standard, input and output signal generators, commutator, voltage meter, circuit measuring means and control block.
EFFECT: broader functional capabilities.
2 cl, 1 dwg
FIELD: amplitude-frequency characteristics of quadripoles.
SUBSTANCE: control of quadripole is realized in two stages. At first stage, estimation stage, N counts of measurements results are received during length T of one signal period, and on second stage, analysis stage, during time T received signal estimation results are recognized with determining of class of technical state of object (like breakdown). To realize first stage of control, to present clock pulse generator, first counter, delay element, first register, first AND element, adder, additionally inserted are two keys, two analog-digital converters, second register and operative memory block for estimation results, to realize second control stage additionally to first and second comparison block, indication block, inserted are breakdowns signs memory block, breakdown counters and commutator, and for controlling control stages to present launch element, first counter, second AND element, key element is additionally inserted.
EFFECT: higher speed of operation.
FIELD: radio engineering; serviceability check of communication systems.
SUBSTANCE: proposed method is characterized in that serviceability of communication systems in frequency-adaptive range is evaluated by checking system response to noise situation simulated at its input and its comparison with desired value. To this end time required for tuning to optimal frequency is measured and compared with desired value, and also number of errors is counted and compared with that admissible.
EFFECT: enhanced reliability of estimating serviceability of communication system in frequency-adaptive range.
1 cl, 1 dwg
FIELD: systems for determining amount of available data transfer resources.
SUBSTANCE: for determining amount of resources for data transfer and/or speeds of bits transfer for network connection, with known physical length of cable, measurement of energy spectrum is performed depending on transmission frequency for different types of modems by means of power measuring device, weakening is determined for different physical lengths and thicknesses of cable wires, depending on parameter of cross interference, number of sources and correcting coefficient on bass of energetic spectrum noise level is determined, while by means of gauss transformer module on basis of efficient signal levels and appropriate noise levels amount of data transfer resource is determined for different data transfer modulations and/or modulating codes for predetermined bit transfer speed, then available data transfer resource amount is corrected by means of correcting coefficient, including average deviation of stored amounts of data transfer resources from efficiency amounts of resources of data transfer, and on basis of stored efficient recourses for data transfer with utilization of known physical length of determined network connection available data transfer resource for appropriate network connection is determined.
EFFECT: possible determining of amount of available data transfer resources for certain connection.
3 cl, 4 dwg
FIELD: control technologies in packet telecommunication networks and data transfer networks.
SUBSTANCE: method is based on shortening down to minimal separate list (INS) of number of clients subject to control due to maximal statistical relations of data exchange inside network node in comparison to number of analogical network nodes in whole network, and also maximal productiveness of network node and during control input data packets are compared only in portion of address of incoming data packets with minimal separate list of number of clients subject to control, while received minimal separate list of number frequency clients subject to control is used for verification of each passing data packet.
EFFECT: decreased work amount of processor providing control over communication participants, while main problem is large number of relatively short data packets, which is necessary to compare to full, related to whole network, list of client inputs subject for control, and productiveness of computing devices connected thereto, which is necessary in each node for realization of this problem.
4 cl, 2 dwg
FIELD: method and device for measuring quality of signal shape.
SUBSTANCE: real signal, representing shape of signal, divided on separate channels by time and codes, is produced, for example, by means of standard communication system for high speed data transfer. Controlling-measuring equipment produces ideal signal shape, matching real signal shape. This equipment produces estimate of shifts between parameters of real signal shape and ideal signal shape, then performs estimation of different measurements of quality of signal shape using quality measurements of compensated real shape of signal. Examples of processing real signal shape and appropriate ideal signal shape by means of controlling-measuring equipment are given. Provided method and devices can be utilized with any shape of signal, separated on channels by time and codes, not depending on equipment, which produces signal shape.
EFFECT: increased precision of measurement of signals shape quality, which are separated on channels in temporal area and code area.
3 cl, 3 dwg
FIELD: communications engineering, possible use for classification of connections.
SUBSTANCE: in method and device by means of computing block one or several distance coefficients are determined, while distance coefficients show efficient length of network connection depending on distance by air. On basis of known data about network connections, distribution coefficient of weak portions is determined, showing mutual relation to each other of weaker portions of network connection. Data transfer resource is determined to determine maximal for data transfer capacity for different types of modems. On basis of efficient length of network connection, weaker portions distribution coefficient and data transfer resources by means of computing block classification is performed (of subject network connection in accordance to its maximal data transfer capacity).
EFFECT: possible quick and flexible determining of service quality parameters.
3 cl, 9 dwg