雷达科学与技术Issue(6)：626-632,7.DOI:10.3969/j.issn.1672-2337.2013.06.012
基于自相关功率谱的生命迹象探测算法
Life Detection Based on Auto-Correlation Power Spectrum
房炫伯 1蓝方宇 1李荣虎1
作者信息
- 1. 电子科技大学电子工程学院，四川成都 611731
- 折叠
摘要
Abstract
In the real environment of life detection by use of radar,signal is always disturbed by Gaussi-an color noise,not Gaussian white noise.The life detection method based on cross-correlation has a poor ability to enhance SNR in the background of Gaussian color noise.To solve this problem,a life detection method based on auto-correlation analysis is proposed.The method is applied in step frequency continuous wave radar and adapts to Gaussian color noise interference.Taking advantage of target signal auto-correla-tion,target signal energy is enhanced to improve SNR.The new method has been proved to be capable of ef-fectively improving SNR by simulation.And the real data from step frequency continuous wave radar detec-tion illustrate the theoretical validity.关键词
生命迹象/自相关/互相关/信噪比/功率谱Key words
vital signs/auto-correlation/cross-correlation/signal-to-noise ratio(SNR)/power spectrum分类
信息技术与安全科学引用本文复制引用
房炫伯,蓝方宇,李荣虎..基于自相关功率谱的生命迹象探测算法[J].雷达科学与技术,2013,(6):626-632,7.
