A Novel Radar Waveform Design for a Low-Power HF Monostatic Radar

作者：Shi Shu zhu^*; Yang Guo bin; Zhao Zheng yu; Liu Jing nan

来源：IEEE Geoscience and Remote Sensing Letters, 2015, 12(6): 1352-1356.

DOI：10.1109/LGRS.2015.2402165

• Aircraft detection
• ambiguity function
• chirp signal
• high-frequency (HF) radar
• interpulse binary-phase-coded waveform
• ionospheric sensing

In this letter, a novel radar waveform is proposed for a low-power high-frequency monostatic radar used for ionospheric sensing and aircraft detection. In this proposed waveform, a hybrid modulation scheme is adopted, where the pulse-to-pulse phase is coded by the WG sequence, and the frequency of each subpulse is linearly modulated with a fixed chirp rate. Compared with the conventional binary-phase-coded waveform, larger signal processing gain, higher range resolution, and lower range side-lobes can be simultaneously achieved with the proposed waveform. Furthermore, it is more insensitive to the Doppler shifts and is not subject to significant range-Doppler cross coupling. With this newly proposed waveform, the ionospheric backscatter ionogram with clear leading and trailing edges can be obtained in the range of 500-2300 km, and the aircraft target can be also clearly detected.

• 出版日期2015-6
• 单位武汉大学