弹道导弹的ISAR回波模拟

Ballistic Missile Echo Simulation Based on ISAR

提出了一种基于FPGA通用雷达回波模拟器系统,并利用该回波模拟器产生弹道导弹的ISAR回波信号源。首先建立基于解线频调(去斜)技术的弹道导弹ISAR回波信号模型,产生弹道导弹的ISAR回波仿真数据;进而利用所开发的回波模拟器产生弹道导弹的ISAR回波模拟信号并对该信号进行采样和处理,获得了与Matlab仿真数据成像一致的结果。实验结果表明:模拟器能够精确有效地模拟和产生弹道导弹回波信号,该模拟器具有可扩展性、可升级和可编程性。

A kind of radar echo simulator hardware architecture based on PC and FPGA is proposed,it is extensible,programmable and suitable for upgrading,and the ballistic missile echo is generated based on such simulator.This paper builds up a ballistic model and an echo signal model on ballistic missile,the model-based analysis is presented and the analyses of the echo simulator and simulation signal source＇s test results are done.The result shows that the simulator can precisely and effectively simulate and generate ballistic missile echo signal.