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.
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
关键词
窄带雷达
架次识别
时频分析
交叉项
narrow-band radar
target sorties identification
time-frequency analysis
cross-terms
