Radar echo generation for hyperbolic frequency-modulation waveforms

ZHOU Wei; YE Chunmao; JIN Kan; LU Yaobin; YANG Jian

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (8) : 878-883.

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Radar echo generation for hyperbolic frequency-modulation waveforms

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Abstract

The hyperbolic frequency-modulation (HFM) waveform is more conducive to high speed moving target detection and imaging than the commonly used linear frequency-modulation (LFM) waveform, due to its inherent Doppler-invariant property. However, the generation of radar echoes is computationally intensive when using high frequency algorithms for complex electrically large targets. A fast method was developed for generating HFM radar echoes using static electromagnetic data for HFM waveforms in wideband radar imaging with the computational complexity effectively reduced by phase-matched filtering and frequency domain down-sampling. The result is used to study the influence to HFM signal matched filtering for high-speed movements. This method is also suitable for LFM waveforms. Simulations verify the accuracy and effectiveness of this method.

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wideband echo generation / hyperbolic frequency-modulation / high speed targets / matched filtering

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ZHOU Wei, YE Chunmao, JIN Kan, LU Yaobin, YANG Jian. Radar echo generation for hyperbolic frequency-modulation waveforms[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(8): 878-883

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