Abstract:

For the high frequency radar system, it is difficult to find a clear wideband for operation. In order to obtain a high range resolution, transmitting/receiving waveform with discontinuous frequency bands is proposed. However, spectrum discontinuity of waveform will result in high range sidelobes. The full-random hoppedfrequency waveform for sidelobe suppression is investigated. By controlling the occurrence probability of different frequencies, full-random hopped-frequency waveform can achieve a low sidelobe. Statistical characteristics of the autocorrelation function are analyzed, and the waveform design methods on both continuous and discontinuous band are also given.