CAJ | 학술논문

随着航空航天技术的发展,特别是作为对空警戒雷达目标的各种飞行器技术的发展,雷达得到了越来越广泛的运用,同时对雷达的作用距离、分辨能力、测量精度等性能指标提出了越来越高的要求.线性调频脉冲(LFM)信号是雷达信号处理系统中应用较为广泛的大时宽带宽积信号.在 LFM 信号的基础上,分析了匹配滤波脉冲压缩的原理及性能,并在此基础上提出了一种基于递推思想的新算法—clean算法,通过matlab仿真表明,该算法具有能够有效降低及抵消距离副瓣,极大地提高距离分辨力的作用.
수착항공항천기술적발전,특별시작위대공경계뢰체목표적각충비행기기술적발전,뢰체득도료월래월엄범적운용,동시대뢰체적작용거리、분변능력、측량정도등성능지표제출료월래월고적요구.선성조빈맥충(LFM)신호시뢰체신호처리계통중응용교위엄범적대시관대관적신호.재 LFM 신호적기출상,분석료필배려파맥충압축적원리급성능,병재차기출상제출료일충기우체추사상적신산법—clean산법,통과matlab방진표명,해산법구유능구유효강저급저소거리부판,겁대지제고거리분변력적작용.
@@@@With the development of aviation and aerospace technology, particularly of the air surveillance radar target aircraft technology, the radar is increasingly wide-used, and meanwhile an even higher requirement of radar range, resolution and accuracy of measurement and other performance index is proposed. The linear frequency modulation (LFM) signal used in the radar signal processing system has large product of time width and band width, and based on the LFM pulse signal, the article describes first the mathematical model and effect of matched filter pulse compression, then presents a new algorithm-clean algorithm based on recursive thought. Matlab simulation indicates that this algorithm could effectively reduce and offset the distance side lobe and greatly enhance the distance resolution.