摘要
雷达跟踪低空目标时,反射信号与直射信号一起(矢量相加后)进入雷达天线,从而引起回波信号在幅值和相位上的变化,造成严重的俯仰角测量误差。对多路径效应进行分析并建立了物理模型和数学仿真模型,根据实测数据与仿真结果进行对比分析,得到了多路径效应相关结论。
When the radar tracks the low altitude target, reflect signal enters into with the direct signal and it causes the phase and magnitude of echo signal to change, and error of radar pitching angle. The multi path effect is analyzed, and the physical model and simulation model are established. According to the compared factual measurement data and radar makes antenna serious mathematical simulation result, some conclusion about multi-path effect can be acquired.
出处
《现代防御技术》
北大核心
2011年第4期179-183,共5页
Modern Defence Technology
关键词
单脉冲雷达
低空多路径
建模与仿真
monopulse radar
low-altitude muhi-path
modeling and simulation
