摘要
从雷达杂波的分布特性出发,分析了低分辨率雷达杂波的幅度统计特性和功率谱特性,并依据其分布特性对低分辨率雷达杂波模型进行了建立,同时为了降低杂波仿真计算量,采用频率变换法给出了杂波模拟的具体算法及仿真结果。最后结合某型以ADSP-BF533为核心处理芯片的雷达模拟器,进行了相应的软件设计,实现了高斯瑞利谱杂波回波输出。仿真结果表明,杂波模拟实时性较好,能够满足一般MTI、MTD体制雷达的测试和检测需求。
The distribution characteristic of the radar clutter is used in the paper.It analyzes the probability density and the power spectral density of the low resolution radar.The simulative model is established and a method of frequency transformation for simulating the clutter echo is introduced.A radar signal simulator based on digital signal processor（DSP） ADSP-BF533 is presented;the Rayleigh clutter is simulated by using the method introduced successfully.The simulation indicates that the clutter is real-time and can fulfill the need to test or examine the type of MTI and MTD radar.
出处
《信息技术》
2011年第3期51-54,共4页
Information Technology
关键词
DSP低分辨率雷达
杂波模拟
分布特性
DSP low resolution radar
clutter simulation
distribution characteristic
