Slow speed pulse chase apparatus

A slow speed pulse chase apparatus for a bistatic radar system comprising in combination:

• a transmitter means to emit a radar signal,
• a plurality of radar receivers to provide a plurality of receiving beams, said plurality of receiving beams comprising a sector array, said sector array covering a predetermined degrees of azimuthal coverage, said sector array scanning said azimuthal coverage in a predetermined number of steps, and,
• a plurality of T/R modules operatively connected to said plurality of radar receivers to cooperatively form said plurality of receiving beams, said plurality of T/R modules generating steering and timing signals to sweep the zone of said azimuthal coverage in a predetermined time, each T/R of said plurality of T/R modules respectively comprise in combination:
• a microprocessor to receive clock signals and steering commands, said microprocessor generating beam phase signals,
• a latch means operatively connected to said microprocessor to receive and store said beam phase signals,
• a sequencer means to receive a beam update signal from a receiver in said plurality of radar receivers, said sequencer means generating a sequence signal,
• a first and second multiplexer means operatively connected respectively to said latch means and said sequencer means, said first and second multiplexer means receiving said beam phase signals and said sequence signal, said first and second multiplexer means combining said beam phase signals and said sequence signal in a beam phase/position signal,
• a first and second RAM operatively connected respectively to said first and second multiplexer means to receive therefrom said beam phase/position signal, said first and second RAM respectively storing said beam phase/position signal,
• a driver means operatively connected to said first and second RAM to receive said beam phase/position signal,
• a phase shifter means operatively connected to said driver means to receive said beam phase/position signal therefrom, said phase shifter means operatively connected to said bistatic radar system,
• radiator means for transmitting and receiving radar signals, and,
• a switching means operatively connected between said phase shifter means and said radiator means, said switching means alternatively providing a first and second signal path between said phase shifter means and said radiator means upon receipt of a T/R command signal.