摘要
为精细分析信号的能量聚集特性,提出了λ水平能量聚点的概念,其定义中的尺度因子d、水平因子λ分别具有调节信号分析的分辨率、灵敏度的作用。提出了一种基于能量聚点的信号特征分析方法,并应用于掩埋目标的信号检测。结果表明该方法有助于提高信号的检测率水平。
To analyze the local condensation speciality of signal energy meticulously, the concept of energy condensation point on λ level of signal is presented. The scale factor d and level factor 2 in the definition of energy condensation point are used to regulate the precision and sensitivity of signal analysis, respectively. A method for analyzing signal feature is proposed based on the energy condensation point, and it is used in signal detection of buried target. The result shows that the method helps a lot for improving signal detection properties.
出处
《数据采集与处理》
CSCD
北大核心
2013年第1期17-21,共5页
Journal of Data Acquisition and Processing
基金
国家自然科学基金(61074191)资助项目
全军军事学研究生课题(2010JY0685-395)资助项目
关键词
能量聚点
特征模型
微弱信号
energy condensation point
feature model
feeble signal
