Performance analysis of interrupted sparse HFSWR waveform coded with successive fast Fourier transforms

A successive Fourier transform technique is applied to efficiently generate an interrupted sparse waveform for a monostatic high-frequency surface wave radar. With few iterations a good stop to passband ratio is reached, and it is show that, when using an optimised envelope, a better average and a lower standard deviation are obtained in terms of minimal contrast ratio than in the case of a simple train of pulses.