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.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2008年第8期974-979,共6页
Acta Armamentarii
关键词
信息处理技术
小波变换
雷达信号
突变
曳光抽取
information processing technique
wavelet transform
radar signal
sudden change
trace extraction
