电波科学学报2012，Vol.27Issue(4)：720-725,850,7.
一种解决噪声连续波雷达泄漏的新方法
A new approach to the solution of the leakage in noise continuous wave radar
摘要
Abstract
Although the noise quasi-continuous wave （CW）radar overcomes the transmit leakage,the transmitted waveform after interrupted amplitude modulation no longer preserves the characteristic of continuity in time domain. Thus the noise quasi-CW radar can not take full advantage of noise CW radar. The dual carrier fre- quencies are applied to noise CW radar for canceling the leakage. In the noise CW radar with the waveform transmitted by dual carrier frequencies, the absolute values of the spectrums after pulse compression-fast Fourier transform（FFT）processing of two leakages modulated by the dual carrier frequencies are equal. So the leakages and the＂noise floor＂ produced by the leakages can be cancelled by subtraction of the absolute values of the spectrums in the two carrier frequencies separated channels. Simulation results are presented to verify that the noise CW radar with dual carrier frequencies has better performance of leakage suppression than noise quasi-CW radar,while preserving the characteristic of the original radar signal.关键词
噪声雷达/泄漏抑制/双发射频率/准连续波雷达Key words
noise radar/leakage suppression/dual transmitted frequencies/quasi-CW radar分类
信息技术与安全科学引用本文复制引用
陈金立,顾红,苏卫民..一种解决噪声连续波雷达泄漏的新方法[J].电波科学学报,2012,27(4):720-725,850,7.基金项目
江苏省高校自然科学研究项目资助 （）
南京理工大学自主科研专项计划资助基金（No.2010ZDJH05）. （）
