RU94044919A - Simulator of radio signal sources - Google Patents

Abstract

FIELD: antenna engineering and radars, can be used in monitoring and test systems of radio aids systems as a simulator of parameters of direction to remote radio-frequency radiation sources. SUBSTANCE: the simulator solves the problem of simulation of several remote radiation sources, with their position being quickly changed in space, at a quick retuning of the signal carrier frequency, and creation in laboratory conditions at minimum dimensions of installations of a scenario of radio electronic situation at the input of the systems under test, which practically cannot be created in the conditions of a testing ground; operation in the near zone in real time is provided due to creation of a wave-front at the output of the simulator radiators by electronic phase control of the signal of each simulated source. To attain the above result, the simulator of radio signal sources, using M radiators, N microwave oscillators, N*M controlled phase shifters, control computer, N couplers, as well as N power dividers cut in between the microwave oscillators and respective controlled phase shifters, has also N control units, each comprising a master oscillator, channel address decoder, phase-shifters control signal conditioner and microwave-oscillators control signal conditioner; the respective inputs of the above conditioners are connected to the outputs of the master oscillator, channel address decoder and via a parallel interface - to the control computer; and the outputs are connected to the control inputs of the respective phase shifters and microwave oscillators; the output of each of N microwave oscillators is connected to the input of the respective power divider, whose total number is also N, and each of M outputs of the power divider is connected to the microwave input of the respective phase shifter, thus forming an N-channel system, whose similar channel inputs, except for the inputs intended for connection of external oscillators, are interconnected in parallel and connected to the respective outputs and buses of the computer interface, and having N*M microwave signal outputs, which via couplers are connected to the respective radiators located in alignment with the antenna elements of the radio electronic station under test at distance, where l - wavelength, and decoupling radio absorbing units are installed between the simulator radiators and radiators of the radio electronic station under test. The phase-shifters control signal conditioner has a timer, processor, address driver, address selection switch, internal storage, data switch, register and gate current amplifiers all connected to one another and to the master oscillator and channel address decoder; the microwave-oscillator control signal conditioner is identical to the phase-shifters control signal conditioner, and the channel address decoder has a switch, comparator, seven AND gates and four OR gates connected to one another and to the computer interface and control units; the master oscillator has a crystal-controlled oscillator, inverter, three AND gates and an OR gate. EFFECT: at forming of a complex multisignal scenario of radio engineering situation a parallel forming of signal parameters and location of individual simulated radio electronic stations are accomplished, with their change in real time. 9 cl, 7 dwg

Claims (1)

The invention relates to antenna technology and radar and can be used in monitoring systems and testing of radio systems as a simulator of directional parameters to remote sources of radio emission. The simulator solves the problem of simulating several remote radiation sources with their rapidly changing position in space and fast tuning of the carrier frequency of the signal and creating in laboratory conditions with minimal sizes of installations of the radioelectronic situation at the input of the tested systems, which is almost impossible to create in the test site, while ensuring work in the near zone in real time by creating a plane wave front at the output of the emitter emitters by electronic regulation az signal of each of the simulated source. To achieve this result, N control units are inserted into the simulator of radio signal sources, containing M emitters, N microwave generators, N • M controlled phase shifters, a control computer, N splitters, and N power dividers connected between microwave generators and the corresponding controlled phase shifters, N each of which includes a master oscillator (CG), a channel address decoder, a phase shifter control signal generator (FSUF) and a microwave generator control signal generator (FSUG) the inputs of these shapers are connected to the outputs of the master oscillator, the channel address decoder and through the entered parallel interface to the control computer, and the outputs to the control inputs of the corresponding phase shifters and microwave generators, the output of each of the N microwave generators is connected to the input of the corresponding power divider, common the number of which is also N, and each of the M outputs of the power divider is connected to the microwave input of the corresponding phase shifter number, thus forming an N-channel system, the channel inputs of the same name, to Roma inputs for connecting external generators are interconnected in parallel and connected to the corresponding outputs and buses of the computer interface, and having N • M outputs of the microwave signal, which through the couplers are connected to the respective emitters located coaxially with the antenna elements of the tested RES at a distance

where l is the wavelength, and decoupling radio-absorbing blocks are installed between the emitter emitters and the emitters of the tested RES; At the same time, the FSUF contains channel addresses, a timer, a processor, an address generator, an address switch, RAM, a data switch, a register and key current amplifiers connected to each other, as well as to a GP and a decoder, and the FSOF is identical to the FSUF, and the channel address decoder contains associated between each other, as well as with the computer interface and control units, a switch, a comparator, seven logical elements AND and four logical elements OR, and the master oscillator ЗГ contains a quartz oscillator, an inverter, three logical elements And and a logical e ement OR. As a result, the aforementioned features provide, when forming a complex multi-signal scenario of the radio environment, the parallel formation of signal parameters and the location of individual simulated RES with their change in real time.