中文摘要：

利用雷达回波信号发生器模拟特定环境的雷达信号是验证信号处理系统有效性既经济又有效的手段。本系统设计和实现了一种基于DSP和单片机的基带脉冲雷达回波信号产生器,采用单片机将编码后的脉冲雷达信号参数输入DSP;DSP解析脉冲雷达信号参数后产生目标信号、噪声信号、同步控制信号和复合信号,并通过D/A转换为模拟信号输出。可以实现根据外部要求产生目标运动轨迹和信噪比可控制的信号波形,在较宽范围内具有可调节性。

英文摘要：

It is an effective and economical means to verify the effectiveness of radar signal processing systems by simulating radar echo signal in some specific condition.A pulse radar echo signal generator based on digital signal processor（DSP） and single chip was designed and realized in this system.The encoding parameters of pulse radar echo signal was transferred through single chip to DSP,then DSP analyzed these encoding parameters and generated target signal,noise signal,synchronous signal and composite baseband signal,and the composite baseband signal was converted to analog signal and output.This signal generator can generate complex radar signal waveform according to the input parameters such as target trajectory and signal-to-noise ratio in real-time.