Frequency-jumped burst waveforms with stretch processing

Frequency-jumped burst (FJB) waveforms for wideband phased-array radars are discussed. These waveforms can avoid or reduce the need for time-delay steering. Fast Fourier transform (FFT)-based stretch processing is a computationally efficient means of compressing FJB. However, this type of system poses several concerns that require attention, including mismatch loss, Doppler sensitivity, and grating lobe time sidelobes. All of these concerns are mitigated for small range windows and small Doppler offsets. The grating lobe concern can be overcome by using nonperiodic FJB.<
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