基于GTD模型的多视角多波段窄带雷达信号融合  

Multiangular and Multiband Fusion of Narrowband Signal Based on GTD Model

作　　者：叶钒[1] 何峰[1] 梁甸农[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《信号处理》2009年第11期1675-1679,共5页Journal of Signal Processing

摘　　要：研究了窄带雷达信号融合问题,提出了一种基于GTD(Geometrical Theory of Diffraction)模型的窄带雷达信号多视角多波段融合的方法。在同波段多视角融合方面,利用Lincoln实验室的方法给出模型参数的初值,再运用遗传算法对参数进行迭代寻优。而在不同波段多视角融合方面,则利用视角融合后获得的同角度不同波段窄带信号联合估计频率衰减因子。并通过仿真实验以二维条带目标为例验证了方法的有效性。In this paper, a new multiangular and maltiband fusion method of narrowband signal based on GTD （ Geometrical Theory of Diffraction） model is proposed. In single band and multiangular fusion, GA （Genetic Algorithm） is used to optimally iterate model parameters obtained by the method of Lincoln lab. In muhiband and multiangular fusion, we utilize narrowband signal of same angle and different band which is obtained by muhiangular fusion to estimate frequency factor. Then the validity of our method is given in simulation of two-dimensional strip.

关 键 词：GTD模型 多视角融合 多波段融合 遗传算法 

分 类 号：TN957[电子电信—信号与信息处理]