现代电子技术Issue(11)：8-11,4.
基于频分复用技术的双线性调频准连续波研究
A study on dual⁃LFM quasi⁃CW based on frequency division multiplexing technology
摘要
Abstract
In order to solve the contradiction between detection range and range resolution of pulse radar,the LFM signal with large time⁃bandwidth product is chosen to be modulated on the transmitter pulse so that the radar is of larger width and higher range resolution. Wide LFM signal may lead to close range blind zone due to conversion of the transceiver switches. Time⁃share launching of one long and one short signals is the traditional solution,but it will cause a lower data rate. A kind of dual⁃LFM signal based on frequency division multiplexing technology is presented and the short pulse is used in short range to offset the lack of wide LFM signal. Through simulation,it is guaranteed that,by using this kind of signal,the radar has a higher reso⁃lution regardless of the short⁃ or long⁃distance target and can eliminate the short⁃range blind zone.关键词
线性调频信号/近距离盲区/距离分辨率/频分复用Key words
LFM signal/close⁃range blind zone/range resolution/frequency division multiplexing分类
信息技术与安全科学引用本文复制引用
郑志宽,何强..基于频分复用技术的双线性调频准连续波研究[J].现代电子技术,2013,(11):8-11,4.基金项目
国家自然科学基金青年基金 （）
