摘要
超宽带雷达脉冲信号达到纳秒级,采样速率需要高达数十GHz,但目前还没有直接能采样的超高速模数转换器件。研究了利用多通道综合技术实现脉冲压缩。提出了采用频域模数转换的方法进行频带分割,有效的解决了超宽带雷达没法直接A/D转换的问题,对整个脉冲压缩系统进行了仿真分析,验证了算法的正确性和有效性。方法不仅适用于线性调频信号信号,也适用于非线性调频信号。
Ultra-wideband radar pulse signal reaches nanosecond.Sampling rate need to be up to several GHz.But there is no direct ultra high-speed ADC can sample pieces.The use of multi-channel integra-ted technology to achieve pulse compression is studied.Proposed using frequency domain methods for A/D conversion band division,the ultra-wideband radar can not direct A/D conversion problems is effective soluted.The entire pulse compression system for simulation analysis is presented.The correctness and validity of the algorithm were verified.This method is applicable not only to the LFM signal,also applies to NLFM signal.
出处
《科学技术与工程》
北大核心
2013年第29期8626-8630,8641,共6页
Science Technology and Engineering
关键词
超宽带雷达信号
脉冲压缩
频带分割
频域采样
插值
ultra-wideband radar signal
pulse compression
Intersection of frequency spectrum
frequency domain sampling
interpolation
