一种基于时频分析的目标架次识别方法  

Method of Air Target Sorties Identification Based on Time-frequency Analysis

作　　者：杜鹏飞[1] 李向东[2] 许松[3] 万洋[4] 

机构地区：[1]空军预警学院三系,武汉430019 [2]空军预警学院二系,武汉430019 [3]空军预警学院空天预警实验室,武汉430019 [4]空军预警学院研究生管理大队,武汉430019

出　　处：《空军预警学院学报》2013年第4期259-262,共4页Journal of Air Force Early Warning Academy

摘　　要：针对常规窄带雷达无法直接在距离和方位上识别目标架次的缺陷,利用编队目标间距引起的多普勒频率的差异,给出了一种基于时频分析的窄带雷达目标架次识别方法.该方法既有良好的时频分辨特性,同时又能抑制交叉项,因而能对目标架次做出准确的判断.计算机仿真结果验证了该方法的有效性.Aimed at the drawback that the conventional narrow-band radars could not identify the target sorties directly over the range and azimuth, this paper presents an identification method for the target sorties of narrow-band radars based on time-frequency analysis, by taking advantage of the Doppler frequency difference resulted from the space between formation targets. This method has the better time-frequency resolution characteristics and can also suppress the cross-terms simultaneously, thus being able to make correct decision on target sorties. Computer simulation results prove this method to be of effectiveness.

关 键 词：窄带雷达 架次识别 时频分析 交叉项 

分 类 号：TN957[电子电信—信号与信息处理]