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.

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

ZTFLH:

TN957.52

Issue Date: 15 August 2015

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	ZHOU Wei
	YE Chunmao
	JIN Kan
	LU Yaobin
	YANG Jian

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ZHOU Wei,YE Chunmao,JIN Kan, et al. 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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http://jst.tsinghuajournals.com/EN/ OR http://jst.tsinghuajournals.com/EN/Y2015/V55/I8/878

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