Emulation device of an active response radar connected with a surveillance radar

FIELD: the device is used for verification of the facilities of the secondary processing of radar information.

SUBSTANCE: it is also used for instruction and training of the operators of the surveillance facilities connected with an active response radars in the conditions of the presence of a great number of targets moving on complex trajectories. The essence of the invention is in that the arrangement holds an oscillator of the signals of the targets including the targets carrying responders. In it there is a control panel of the active response radar, a selector of characteristics of response signals, a synchronizer of response signals, an operating response signals storage device, a decoder of the characteristics of response signals, a counter of tact impulses, a former of identification markers and an adder unit with their connections that provides emulation of the operation of the active response radar connected with the surveillance radar at changing their modes of operations in the process of obtaining radar information about common and individual characteristics of the target carrying a responder in the zone of operations of the mentioned radar facilities with the purpose of verification of their terminal facilities of the secondary processing of radar information, instruction and training of the operators of the surveillance radar.

EFFECT: the device imitates the operation of a system which has a surveillance radar, an active-response radar and a crew of operators at the stages of introducing of prime data about operating modes of a radar, acquisition and classification of objects with the purpose of exposing of common and individual characteristics belonging to the operating system of identification by way of forming synchrosignals and videosignals whose parameters are identical to the parameters of the identical signals at the input of the terminal facilities of the secondary processing of information of the surveillance radar connected with the active response radar.

10 dwg

The invention relates to the field of radar, namely the simulated signals from targets-media defendants, in the area of surveillance radar station (radar), coupled with the radar with an active response, when they are used together in the process of obtaining radar data about the order.

Device emulation radar with an active response, coupled with surveillance radar station in the future UE radar JSC is approved for training of radar operators in terms of a large number of moving a complex pattern of purposes, including in the same direction in the following modes, up:

mode "A" (General naimittika recognition with informative sign "does not respond");

mode "B" (total imitazione recognition with informative sign "guaranteed your - guaranteed foreign";

mode "B" (individual recognition purposes-media defendant in a given sector, with the indication "responsible", according to the individual number);

- mode "D" (individual recognition purpose vehicle transponder operating mode "flagship"with the sign "answers");

- mode "D" (individual recognition target carrier of the defendant in distress, when requested in mode "A");

- mode "E" (individually the e recognition target carrier of the defendant in distress, when prompted in the "B").

The known device that simulates the Autonomous radar with an active response [6] and the signal generator goals-media radar with an active response [8], as well as a useful model signal generator purposes [7], designed for generating signals simulating the synchronization signals and the signals at the output of the receiver surveillance radars, containing signals from moving targets, intrinsic noise of the receiver. Closest to the claimed according to the main characteristic is the signal generator carrier radar with an active response [8], however, it has significant shortcomings that limit the range of tasks:

the device simulates the signals similar to the signals at the output of the decoders radar with an active response mode only "A" or "B" General recognition, and kind of label recognition does not allow the operator to clearly classify the purpose on the grounds of "meets" or "guaranteed his";

- method of forming a label identification corresponds to the mode setting mark target and label recognition, which significantly worsens the conditions of operator training on the detection and classification of targets with different effective reflecting surface (EOP) in noise conditions.

As a prototype generator of signals from targets-media radar with active what than [8] used utility model signal generator purposes (GSC) [7]. The model contains all necessary devices that provide input data, device synchronization, device formation and translation on the target device search radar in real-time videokursov marks a large number of moving targets, including in the same direction. To eliminate the above drawbacks of the device [8] as a prototype of the proposed UE radar JSC most significant characteristics of the selected utility model [7].

The main significant difference between the claimed UE radar JSC from GSC prototype is the ability to form a special stamp, type and location of which on the screen is different from the type and location stamp purposes, the simulated GSC, the form of marks contains information about the classification attributes of the goal, then there is a specific causal depending on the mode of recognition of the simulated target.

Object of the invention is a device, solving the problem of emulating the operation of the JSC, which is coupled with a search radar modes General and individual recognition "And"..."E".

The technical result of the invention consists in the modeling of signals similar to the signals at the output terminal radar devices JSC, when prompted in the "A"..."E"at targets in the AOR is e steps surveillance radars.

The solution is achieved by the fact that in GSC entered remote control radar with an active response (PU RLS JSC), the block selector signs of response signals (block FPIC) goals-media defendants (CNO), the synchronization unit response signals (BSOS), block random access memory device response signals (block RAM OS), the block decoder signs of response signals (block FPIC), the block counter of clock pulses (block STI), block shaper marks of identification (unit FMO) and the block of the adder, and the second output GSC connected to the data bus to the first input of BSOS, the first output GSC is connected to the first input of the adder, and a third output GSC connected to the data bus to the first input of the block PIC, second and third inputs of which are connected respectively informational tires with the release of PU RLS JSC and the first output BSOS, the first output unit FPIC is connected by a data bus with a second input BSOS, the second output unit FPIC connected to the data bus to the first input of the block RAM OS, second and third inputs of which are connected, respectively, address bus and bus synchronization with the second and third outputs BSOS, the fourth output BSOS connected by bus synchronization unit, wherein the output block RAM OS connected to the data bus with the first input unit of FPIC, the first output of which is connected in parallel to the information shall include the bus the first input of the block RAM OS and the second output unit FPIC connected to the address bus to the first input unit FMO, the second output of which is connected to the second input unit of FPIC, the third output unit FPIC connected to the second input block, wherein the output of which is connected to the address bus with the second input unit FMO, the first output unit FMO is connected to the second input of the adder, the output of which is the output device.

The ability to achieve a technical result due to the fact that the special mark on the screen surveillance radars are formed by the video signal with constant parameters generated by the target device radar JSC on the control signals generated by the decoder radar AO, with matching signs expected return codes General and individual identification with the characteristics of the response signals received by the radar from the JSC ZNO, with the characteristic response signal (OS), when requested, in the sector equal to the width of the antenna directional diagram (BOTTOM) radar AO-level half power.

Figure 1 shows the structural electrical diagram of the inventive device. In figure 2, 3, 4 shows a chart of voltages illustrating the interconnection of information processing UE radar AO. Figure 5, 6, 7 are examples of the formation of the UE radar JSC special marks.

The whole device may be implemented using computer equipment compatible with the STN with analog circuits based on well-known items. Unit 1 GSC is similar GSC prototype. The introduction of the UE radar AO block 3 GOLD, 4 BSOS and adder block 9, having additional outputs 1, 2 and 3 GSC, does not change his work, however, provides time synchronization of processes of forming marks objectives and special marks of identification.

The device operates as follows. Preparations UE radar AO differs from training GSC prototype the presence of a cycle of the input additional information about CNA with the sign of "your". This step includes assigning a destination sign, the assignment of the characteristics of the query response modes General and individual recognition "And"..."G", sign goals in distress. Broadcast information about the signs on ZNO is performed by block 1 GSC and occur synchronously with the broadcast basic information about the order. Full information about one goal is transmitted tridtsatidvuhletny word. The possibility of introducing additional information due to the presence of each word backup bits.

The simulation identification purposes, the data of which is stored in block 1 GSC begins with the receipt with PU RLS JSC (block 2) to the second input unit 3 : control signal "Request" (figure 2, sheet 1, chart d). From this moment begins the cycle of processing and transmission of information on the characteristics of the OS ZNO coming from the unit is 1 GSC. This cycle consists of two alternating cycles. The first cycle should coincide with a time interval corresponding to the return stroke of the sweep (PU) of the indicator device search radar, and the second cycle should coincide with the direct course of the sweep (PHR). The beginning of each cycle is determined by the points of receipt at the first input of BSOS 4 pulse start reverse (INAH) and pulses the beginning of the forward stroke (INPH).

The first cycle has a duration of t_CSSand consists of intervals of feature selection on ZNO unit 3 PIC, for each of the simulated targets and recording intervals of the selected information in block 5 RAM OS (figure 3). The duration of this cycle is determined by the ratio:

where t_{CH 3}- the duration of the third cycle of rewriting information block 1 GSC;

t_SUPP- duration SUPP search radar.

With the arrival of the first INK at the first input of BSOS 4 from the first output of this block will be removed by the signal "power door locks" (third cycle) duration CSS and is supplied to the third input of the block 3 PIC. This block produces a consistent comparison of digital code bearing maximum beam (MDNA) radar JSC codes bearings all the goals coming via the data bus from the second output unit 1 GSC. When the condition is met:

where ΔP imodule differential bearings, MDNA radar JSC and the i-th target;

θ_{G of 0.5}- the beam width of the radar station JSC in the horizontal plane at the level of the half-power

unit 3 FPIC solves the problem of logical data processing mode of operation JSC, established in PU RLS AO 1, data about the characteristics of the OS ZNO. The sign on ZNO, codes, signs on ZNO on request modes "A"..."E" are formed on the second output unit 3 PIC, the principles of logical processing of the following:

- sign on ZNO to the request in the "a" and "B" is formed of course if there is sign of "Your" (figure 5, a, b);

- sign on ZNO to request in mode "B" is formed only for ZNO with the sign "their", and the individual number of the i-th target is equal to the number set by the operator on PU RLS AO 1 (6,);

- sign on ZNO to the request in the "G" is formed only for ZNO, with the indication "Flagship"for other purposes with the sign, the sign of the answer-mode "And" is not formed (6, g);

- sign on ZNO distress, on the request in the "a", "B" is formed for any purpose, with the indication "your" and the sign of the response "disaster" (7, d, e).

Interval recording loop recording "power door locks" trait OS i-th ZNO begins upon receipt from the first output unit 3 FPIC to the second input of BSOS 4 sign "your" (figure 2, chart b, e). On this signal the WTO is om its output is set to the address of record in the block RAM 5 OS. This address is a code number value range m_i+Δi"corresponding to the beginning of the mark recognition modes "A"..."E". The magnitude of the discrete range Δd is calculated from the formula:

where C is the speed of propagation of electromagnetic waves in the air;

m is the number of discrepo range corresponding to the range search radar.

The value of m_i+Δiis calculated by the formula:

where m_i- the number of the discrete range of the i-th ZNO with the sign "their";

Δm=mK, where K is a natural number, it≤100.

From the third output BSOS 4 to the third input of the block RAM 5 OS receives synchronization signals recording. Thus, during DEVELOPMENT, in block 5 RAM OS, provides information about the signs on ZNO with the sign of "your".

During the cycle corresponding PHR search radar, UE radar JSC forms the mark recognition (figure 4). To this end, the second output GSC 1 at the first input of BSOS 4 broadcast INP and address increments range selected sequentially from the interval from 1 to m. BSOS 4 translates these addresses without changes to the second input of the block RAM 5 OS, and the third output BSOS 4 to the third input of the block RAM 5 OS receives synchronization signals read signs on ZNO in block 6 DPO.

Unit 6 DPO carries decterov is their information about the signs on ZNO, read from the memory cells of the block 5 RAM OS builds on the data bus that connects the first output and the first input of the block RAM 5 OS, signal erase read information, and starts the counter clock 4 MHz block 7 STI on his second entry.

Startup unit 7 STI corresponds to the moment of the appearance of the sign on ZNO "your" on the third output unit 6 DPO. The binary counter unit 7 STI counts the clock pulses of 4 MHz, thereby generates at its outputs, the combined output bus, the address to which of the block 8, the faculty need to read information about the law of formation of the envelope of the signal mark detection code which depends on the sign of the OS i-th ZNO, the last set of the block 6 DPO on the second output and is supplied to the first input unit 8, FIR.

Unit 8, FIR is an EPROM, the first output of which is loaded trigger shaper label recognition, and the second output loaded trigger counter reset unit 7 STI. The direct outputs of the triggers are, respectively, the first and second outputs of block 8 of the faculty. From the first output unit 8, FIR to the second input of the adder block 9 receives videospussy marks of identification, and with the second output unit 8 of the international relations faculty at the end of formation of the mark pulse is removed, allowing the unit 6 DPO reception of the next sign on ZNO from the block RAM 5 Axis forming a reset pulse for the counter block 7 STI.

From the output of the adder block 9 is removed, a mixture of video purposes, marks of identification and noise simulated UE radar AO. This output is the output of the claimed device.

List of used sources

1. Kuzmin SZ fundamentals of digital processing systems. - M.: Radio and communication, 1986. s-136.

2. Tver G.N., Terentyev, G.K., Kharchenko I.P. Simulators echoes ship radar stations. - Leningrad: Sudostroenie, 1973, p.142-205.

3. The pershikov VI, Savinkov VM's dictionary of computer science. - M.: Finance and statistics, 1991.

4. Dictionary of computing systems/edited Willingboro and other Lane. from English. Akelamo and other edited Ackmessage. - M.: Mashinostroenie, 1990

5. Patent No. 5870055 U.S. CL G 01 S 7/40, 1999, Tracking radar signal generator.

6. RF patent №94009033, IPC 6 G 01 S 7/40, 20.12.1995 year.

7. Evidence of the Russian Federation for useful model No. 11348, IPC 6 G 01 S 7/40, 1999 (prototype).

8. RF patent №2193215, IPC 6 G 01 S 7/40, 20.11.2002.

Device emulation radar with an active response, coupled with surveillance radar station, comprising a generator of signals from targets (GSC), characterized in that it introduced the remote control radar with an active response (PU RLS JSC), the block selector signs of response signals (block FPIC) goals-media defendants (ZNO), block synchronize the response signals (BSOS), block random access memory device response signals (block RAM OS), the block decoder signs of response signals (block FPIC), the block counter of clock pulses (block STI), block shaper marks of identification (unit FMO) and the block of the adder, and the second output GSC connected to the data bus to the first input of BSOS, the first output GSC is connected to the first input of the adder, and a third output GSC connected to the data bus to the first input of the block PIC, second and third inputs of which are connected respectively informational tires with the release of PU RLS JSC and the first output BSOS, the first output unit FPIC is connected by a data bus with a second input BSOS, the second output unit FPIC connected to the data bus to the first input of the block RAM OS, second and third inputs of which are connected, respectively, address bus and bus synchronization with the second and third outputs BSOS, the fourth output BSOS connected by bus synchronization unit, wherein the output of the block RAM OS connected to the data bus with the first input unit of FPIC, the first output of which is connected in parallel to the data bus of the first input of the block RAM, the OS, and the second output unit FPIC connected to the address bus to the first input unit FMO, the second output of which is connected to a second input unit FPIC, the third output unit FPIC connected to the second input block, wherein the output of which connect the address bus with the second input unit FMO, the first output unit FMO is connected to the second input of the adder, the output of which is the output device.