Coherent moving target simulation unit for tracking radars or laser or sonar - has demodulated signal sampled or stored with extracted digital words target parameter modulated or transmitted

摘要

The simulation unit has a memory (203) in which signals are stored after demodulation (101) and sampling at the receiver interface (201). The local oscillator signal for demodulation and sampling are provided by a sub-assembly (300). Retransmissions are obtained by accessing the memory through a transmission interface (202). Modulation (102) is added to provide the target parameters, using Voltage Controlled Oscillators (VCO) (403,402) and mixers (404,405). The VCO is controlled by a command unit (410).