摘要
采取宽带发射信号,双基地雷达系统获取的目标一维高分辨距离像与单基地雷达下的距离像存在很大差别。首先从回波信号的相位出发,建立了双基地雷达回波信号模型。分析了双基地雷达系统中距离像的特点,并给出了对运动目标双基地距离像的补偿因子。分析了对多散射中心目标的双基地距离像与单基地距离像之间的关系,最后对双基地距离像进行了仿真。所提出的结论为多基地雷达系统利用多站同时获取的双基地距离像构造目标散射点三维结构图奠定了基础。
With wideband transmission signal, the HRRP in a bistatic radar system is greatly different from the HRRP in a static radar. The model of bistatic echo is constructed based on the phase of the echo. The characteristic of range profile in the bistatic radar system is analyzed. The motion compensation factor for the bistatic range profile of a moving target is also proposed. The relation between HRRP in bistatic radar and HRRP in static radar of the target with multiple scattering centers is investigated. The analysis is proved by simulation result. The conclusion can be used for constructing the three-dimensional image of target in a multistatic radar system.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2005年第8期1387-1390,共4页
Systems Engineering and Electronics
关键词
双基地
距离像
高分辨
散射中心
bistatic
range profile
high resolution
scattering center
