Radar Signal Processing for Clutter Spectrum Reduction

A pulse-Doppler system comprising:

• a radar transmitter configured to emit a burst containing a train of electromagnetic EM radiation radar pulses to a beam coverage area, comprising a sequential series of dwells having different pulse repetition intervals (PRI) from each other;
• a radar receiver configured to detect reflections of the emitted pulses and measure timing of the reflections relative to timing of emission of the radar pulses and to produce burst data;
• and
• a processor configured to:
• process said time domain radar data to associate reflection measurements with range for each dwell;
• combine time domain data for the plurality of dwells, the combining including combining reflection measurements of different dwells for corresponding ranges;
• transform, after the time domain data for the plurality of dwells is combined, said time domain data for the plurality of dwells to produce frequency domain burst data;
• evaluate the frequency domain burst data to identify range and velocity of any targets within said beam coverage area.