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.
出处
《电子测量技术》
2014年第5期108-111,共4页
Electronic Measurement Technology
关键词
海杂波
模拟
电磁散射
信号产生
sea clutter
simulation
electromagnetic scattering
signal generation
