RU94039182A - Imitator of three-dimensional target - Google Patents

Abstract

FIELD: testing of radio systems. SUBSTANCE: device has several identical refreshing reflectors which are connected to each in space and by electric signals. Each refreshing reflector has receiving and transmitting antennas, two phase modulators, three gates, divider, two balance modulators, phase shifter, adder, controlled attenuator. Signal which is emitted by tested radio system is received by receiving antennas and is subjected to phase, frequency and amplitude processing. transmitting antennas reflect random radio signals in direction of tested system. Such characteristics of reflected signals as amplitude, Doppler frequency shift, time delay are controlled. Reflected signals are similar to signals which are reflected by elements of three-dimensional target. EFFECT: increased precision of simulation.

Claims (1)

The invention can be used in modeling complexes of metrological testing and research of radio systems. The invention is directed to the organization of a radio signal simulator with adjustable parameters adequate to a spatially distributed target. The simulator contains several identical active reflectors, interconnected spatially and electrically. Each active reflector contains receiving and transmitting antennas, two phase modulators, three gates, a divider, two balanced modulators, a phase shifter, an adder, and a controlled attenuator. The signal of the studied radio system radiated into space is captured by the receiving antennas of the simulator and is subjected to phase, frequency and amplitude processing. The transmitter antennas of the simulator reflect random radio signals in the direction of the radio system with controlled parameters: amplitude, Doppler frequency offset, time delay. These radio signals are adequate to signals reflected by elements of a spatially distributed target.