二维距离-多普勒海杂波信号模拟与实现方法  

Simulation and generation methods of two-dimensional rang-doppler sea clutter signals

作　　者：凌祥[1,2] 王夷[1] 赵雷鸣[1] 王胜海[1] 陈书恒[1] 

机构地区：[1]海军装备研究院,上海200436 [2]海军航空工程学院,烟台264001

出　　处：《电子测量技术》2014年第5期108-111,共4页Electronic Measurement Technology

摘　　要：对满足K分布的距离-多普勒二维海杂波建模和快速模拟方法进行了研究。利用距离-多普勒分辨单元对海面进行划分,分析计算了海杂波功率谱密度,并采用球不变随机过程方法得到二维相参K分布海杂波模型。利用电磁仿真软件分析了海面的电磁散射系数,计算得到了海面一维距离像和模拟信号。设计了海杂波信号模拟系统,利用仿真得到的数据可实时产生雷达二维海杂波信号。A new method of modeling and simulation of rang-Doppler two-dimensional sea clutter based on Kdistribution is proposed.The sea surface is divided into range-doppler elements,which can be used to analyze and calculate power spectrum of sea clutter.The two-dimensional coherent K-distribution model is achieved by SIRP method.The scattering coefficient of sea surface is analyzed with electromagnetic simulation software to calculate the one-dimensional Range image and simulation signals.A signal simulation system of sea clutter is designed,which is suitable to generate Radar two-dimensional sea clutter signals using simulated data.

关 键 词：海杂波 模拟 电磁散射 信号产生 

分 类 号：TN955.2[电子电信—信号与信息处理]