东南大学学报（英文版）2018，Vol.34Issue(4)：459-465,7.DOI:10.3969/j.issn.1003-7985.2018.04.007
数字相控阵雷达系统中多目标距离与速度的测量
Multi-target range and velocity measurements of a digital phased array radar system
摘要
Abstract
As the core of a digital phased array radar system, a radar signal processing environment is created to measure multi-target range and velocity information. The radar echo signal is achieved by superposing target echo, noise, clutter and jamming signals linearly. Considering that these signals have many types, two typical combinations are selected to construct the multi-target echo signal and the simulated echo signal is used as the input of the signal processing environment. This environment mainly adopts pulse compression, moving target indication and detection technologies to process the echo signal. It is found that the frequency domain method is more desirable for the pulse compression effect than the time domain method, and multi-target range information can be measured from the moving target indication result after using a double delay canceller. A new moving target detecting method is proposed, which can present the positive and negative velocity accurately with the multi-target range and velocity measured simultaneously. Simulation results indicate that the potential targets are detected from the chaotic radar echo signals successfully, and their range and velocity can be figured out correctly in the built radar signal processing environment.关键词
相控阵/雷达回波/脉冲压缩/运动目标Key words
phased array/radar echo/pulse compression/moving target分类
信息技术与安全科学引用本文复制引用
贾贞,李建清..数字相控阵雷达系统中多目标距离与速度的测量[J].东南大学学报（英文版）,2018,34(4):459-465,7.基金项目
The"13th Five-Year" Equipment Pre-Research Com-mon Technology Fund of China ( No. 41411010202) , the National Natu-ral Science Foundation of China ( No. 61571113 ) , the Natural Science Foundation of Jiangsu Province ( No. BK20160697) . （ No. 41411010202）
