电子学报2012，Vol.40Issue(1)：66-72,7.DOI:10.3969/j.issn.0372-2112.2012.01.011
无源双基地雷达直达波脉冲丢失与相位突变影响分析
Analysis of Direct-Path Pulses Loss and Phase Reversal Effect on Passive Bistatic Radar
摘要
Abstract
The amplitude and phase modulation caused by the rotating transmit antenna pattern results in pulses loss and phase reversal within the direct-path pulse train. The loss mechanisms of signal to noise ratio (SNR) were discussed for these modulation phenomena. With respect to the ordinal number of pulses loss or/and phase reversal happened, the analytical expressions for the peak output of CAF were derived.Simulation results show that the maximum loss in SNR is less than 4 dB,and the SNR loss curves of different Doppler frequencies and number of pulse loss are conformed to the analysis in theory. The maximum error of Doppler frequency estimation is about 0.75 of the frequency resolution cell.关键词
无源双基地雷达/互模糊函数/天线波瓣图/直达脉冲丢失/相位突变Key words
passive bistatic radar (PBR)/ cross-ambiguity function (CAF)/ Antenna Pattern/ direct path pulses loss/ phase reversal分类
信息技术与安全科学引用本文复制引用
张财生,唐小明,何友,丁家会..无源双基地雷达直达波脉冲丢失与相位突变影响分析[J].电子学报,2012,40(1):66-72,7.基金项目
国家自然科学基金(No.61032001,No.60472139,No.60972160) （No.61032001,No.60472139,No.60972160）
国家自然科学基金青年基金(No.61002045,No.61102166) （No.61002045,No.61102166）
