两种GTD模型参数估计算法的研究  

Research on Two Methods for Parametric Estimation of GTD Model

作　　者：刘涛[1] 席泽敏[1] 周雷[1] 黄雪军[1] 

机构地区：[1]海军工程大学,武汉430033

出　　处：《舰船电子工程》2008年第7期110-112,共3页Ship Electronic Engineering

摘　　要：基于电磁散射的几何绕射(GTD)模型参数估计研究,将采用两种方法:多重信号分类(MUSIC)和基于信号子空间特征向量的广义特征值(GEESE)算法。其中GEESE利用特征子空间分解方法中信号子空间与噪声子空间的正交特性分离出信号子空间。计算机仿真试验,分别采用这两种算法估计出目标散射中心的位置和类型参数。The research bases on GTD model and is introduced two methods: the MUSIC algorithm and the GEESE algorithm.The orthogonal property between signal and noise subspaces is used to separate the signal subspace.Those two methods can estimate the types of the positions and the scattering centers.Compared with the results of computer experimental study,the GEESE algorithm is better than the MUSIC algorithm in anti-noise and estimation speed.

关 键 词：几何绕射模型 MUSIC算法 GEESE算法 散射中心 

分 类 号：TN011[电子电信—物理电子学]