基于SIRP法的相干K分布海杂波仿真

Simulation of Coherent K-Distribution Sea Clutter Based on SIRP

球不变随机过程法(Spherically Invariant Random Process,SIRP)允许对杂波的边缘概率密度函数和自相关函数独立进行控制,且高阶概率密度函数可以显式表达,从而克服了无记忆非线性变换法(Ze-ro Memory Nonlinear,ZMNL)对自相关函数的影响。文中提出了一种采用相干脉冲雷达的杂波功率谱模型并结合SIRP法产生相干K分布海杂波的方法,对以往的模拟方法作了改进。仿真结果证明了该方法的有效性。

The method of Spherically Invariant Random Process（SIRP） allows independently control of the marginal probability density function（PDF） and the autocorrelation function of clutter, which overcomes the infection of Zero Memory Nonlinear（ZMNL） on autocorrelation. The simulation model of coherent correlation K-distributed clutter using SIRP, with the modeling of coherent pulsed radar clutter, is presented in this paper and simulated on computer. The validity of this method is proved by our simulated results.