基于空间谱估计的旋转搜索测向  

Rotation Searching Direction Finding Based on Spatial Spectrum Estimation

作　　者：项川 李华 林选锋 XIANG Chuan;LI Hua;LIN Xuan-feng(Science and Technology on Electronic Information ControlLaboratory, Chengdu 610036, China)

机构地区：[1]电子信息控制重点实验室,成都610036

出　　处：《电子信息对抗技术》2018年第3期18-21,36,共5页Electronic Information Warfare Technology

摘　　要：空间谱估计技术被广泛应用于阵列雷达的测角中,具有高精度和超分辨的特性,但在旋转搜索测向中的应用很少看到。提出一种在匀角速度的圆周扫描下的基于空间谱估计的旋转搜索测向算法,提出了利用接收的信号脉冲与天线方向图的关系进行角度精准估计的数学模型,并对此进行了计算机仿真。从仿真结果可以看出,该方法相对于传统的旋转搜索测向算法,能够明显提高角度测量的精度。Spatial spectrum estimation is usually used in array direction finding,with high precision and high resolution,but seldomly found in rotation searching direction finding with rotate antenna. An algorithm of spatial spectrum estimation is given used in DF searching with rotate antenna,and with the relationship between radiation pattern and pulses. A model of precise radiation pattern is put forward with direction finding,and then the computer simulation is made. The simulation indicates that this method can improve its azimuth precision remarkably,compared to the traditional rotation searching direction finding methods.

关 键 词：空间谱 旋转搜索测向 天线方向图 

分 类 号：TN971.1[电子电信—信号与信息处理]