基于现代谱估计的相关K杂波模拟

The simulation of correlative K-distribution clutter using modern spectral estimation

针对相关K分布杂波仿真过程中具有指定功率谱的随机序列的产生,提出用现代谱估计进行相关随机序列产生的方法.该方法利用L-D算法求解自回归模型的Y-W方程以精确地模拟杂波的功率谱密度,以海杂波为例的仿真结果证明了方法的有效性.同时针对杂波仿真过程中自回归模型阶数的选择,对不同的K分布参数和功率谱宽度的杂波进行了仿真实验,通过对实验结果的分析给出一些有用的结论.

To produce of random sequence,this paper puts forward a method using modern spectral estimation to simulate correlative clutter with K-distribution probability density and desired spectrum.The method is to solve the Yule-Walker equation of the autoregressive model in order to meet the given power spectral density using the fast Levinson-Durbin algorithm.The simulation result shows that it is an effective method for clutter simulation.Simulations are done in order to give an appropriate choose about the orde...