Doppler-Tolerant Waveform Design and Signal Processing for Interference Immune Radar Systems

Dynamic targets in a radar system undergo a decrease in the matched filter gain as the Doppler tolerance limits for reliable operation are exceeded. In addition, interferers present in the field of view adversely effects the SINR of the victim sensor, thereby increasing false alarms. Features such as Doppler tolerance, uniqueness of the phase in every subpulse and subpulse processing architecture at the receiver are integrated together and a joint waveform and receiver design problem is discussed. An algorithm to devise unique waveforms is proposed which provides interference immunity to the transmit signal, improves compatibility of the system toward higher target velocities and provides optimal ISL/PSL metrics.