立方功率谱相关高斯随机过程模拟  

The Simulation for Coherent Gauss Random Process with Cubic Power Spectrum

作　　者：汤海涛[1] 温照方[1] 

机构地区：[1]北京理工大学自动控制系电工教研室,北京100081

出　　处：《系统仿真学报》2003年第4期466-468,共3页Journal of System Simulation

基　　金：航天科工集团二院雷达系统模拟项目

摘　　要：在雷达回波信号模拟中,杂波随机过程功率谱数学模型的建立是影响最终模拟效果的关键。立方功率谱是目前国际上普遍采用的地杂波功率谱模型。通过建立随机过程的AR模型,利用Levis on-Durbin算法和MDL定阶准则,提出了一种基于现代信号理论的立方功率谱特性相关高斯随机过程模拟方法,与现有谱估计方法做了比较,并给出了模拟结果。获得的随机序列能够满足立方谱杂波雷达模拟的要求。Establishing math model for power spectrum of clutter stochastic process is the key to influence the final effect in radar echo simulation. By means of making an AR model of the random process, a simulation method for coherent Gauss random process with cubic power spectrum based on modern signal theory is put forward in this paper by using Levis on-Durbin algorithm and MDL rule and compared with existing spectral estimation methods. The simulation results are given at last. Simulating cubic power spectrum clutter can be fulfilled by utilizing the obtaining stochastic sequence.

关 键 词：雷达回波信号 现代信号理论 立方功率谱 高斯随机过程模拟 

分 类 号：TN957.51[电子电信—信号与信息处理]