基于小波变换的抽取轻武器弹头曳光时间方法研究  

Method Study of Extracting the Tracer Time of Small Arms Bullet Based on Wavelet Transform

作　　者：李岳霖[1] 闵碧蓉[2] 庞伟正 叶剑锋[1] 

机构地区：[1]哈尔滨工程大学 [2]中国白城兵器试验中心,吉林白城137001

出　　处：《兵工学报》2008年第8期974-979,共6页Acta Armamentarii

摘　　要：基于小波变换对连续波多普勒测速雷达的回波信号进行分析和研究,利用其对于表征信号的突变(瞬态)特征,对轻武器各种曳光弹头的曳光时间进行了抽取。试验结果表明,利用该方法能准确地抽取出曳光开始和结束时刻,且精度优于传统方法。The echo signal of continuous wave Doppler speed measurement radar was analyzed and studied on the basis of wavelet transform. The tracer times were extracted from various kinds of tracer bullets of small arms by using the wavelet transform to characterize the sudden change （transient state） of the signal. The test result indicates that the method can be used to accurately extract the beginning moment and the ending moment of tracer, and is more accurate than the traditional methods.

关 键 词：信息处理技术 小波变换 雷达信号 突变 曳光抽取 

分 类 号：TN958.95[电子电信—信号与信息处理] TJ012.36[电子电信—信息与通信工程]