基于相参脉冲串的多普勒雷达回波仿真

雷达回波是一切雷达信号处理和系统性能评估的基础，由于目标处于复杂的环境背景之下，所以雷达接收机端除了接收到真实目标的有用回波外，还将混入环境杂波以及接收机内部的噪声信号。利用Simulink工具箱丰富的信号发生及处理模块，对包括目标回波、噪声以及环境杂波等信号的脉冲多普勒雷达回波进行了仿真。通过在相参脉冲串雷达信号中加入目标RCS幅度起伏和延迟信息以及多普勒信息，进行仿真了目标的回波信号。同时，在对分布函数分析的基础上，由Simu-link基本模块产生的均匀分布信号作相应变换与处理，分别得到满足各种分布的典型雷达噪声。并对环境杂波和各种回波信号进行仿真。仿真结果与理论分析相一致，证明对雷达回波的有效性为信号的处理和分析提供了保障。

Modeling and Simulation of PD Radar Echo Based on Coherent Pulse Train

The simulation of radar echo plays an important part in system performance assessment because it is the basis of radar signal processing.Clutter and noise signals are received by radar receiver besides the target echo,since the target are located in a complicated background.The simulation of airborne PD radar echo,including target echo,noise and clutter,is implemented by using Simulink with signal generating and processing blocks.The simulation result of target echo is presented by adding RCS fluctuation,di...