Abstract: For more convenient application of radar echo signal simulation to practice，a software implementation approach of real-time radar echo signal simulation is proposed.Firstly，in the light of the principle of radar signal receiving and processing，radar work mode and battlefield environment are modeled and simplified，and radar echo signal is simulated by software.Secondly，by using of the convenience of software implementation，some interactive interfaces are designed to receive the radar work status adjustment and the simulated battlefield environment modification.In this way，dynamic radar echo signals under varied environment are produced in real-time，thus the flexibility and universality of radar echo signal simulation are improved.Simulation results validate the applicability and effectiveness of the presented method.

Key words: signal simulation, radar echo signal, software implementation, radar work mode, battlefield environment

摘要： 为了便于将雷达回波仿真应用于实践，提出一种雷达回波实时仿真的软件实现设计方法。按照雷达信号接收处理的工作原理，对雷达工作方式和战场环境分别建模并作适当简化，利用软件编程实现雷达回波仿真。利用软件实现的便捷性特点，在仿真中设计了一些交互接口，可接收对雷达工作状态的调整指令以及对模拟战场环境的修改信息。这样可实时更新生成不同环境下的动态回波信号，提高仿真应用的灵活性与通用性。仿真结果验证了该方法的可用性和有效性。

关键词: 信号仿真, 雷达回波信号, 软件实现, 雷达工作方式, 战场环境