Pulse-diverse radar waveform design for accurate joint estimation of time delay and Doppler shift

A pulse train of diversely compressed pulses may produce better Doppler-delay resolution than a similar pulse train of identically compressed pulses by reducing the total ambiguity and being more flexible in distributing that reduced ambiguity. This work investigates the design of such a pulse-diverse waveform under a design criterion constraining the allowable sidelobe height in the composite ambiguity function. A genetic algorithm is used to design the pulse modulation parameters for frequency shift keying (FSK) pulse modulation and joint frequency-phase shift keying (FSK-PSK) pulse modulation. Simulation studies verify the superior Doppler-delay resolution and interference rejection capability of these pulse-diverse modulation schemes