摘要
本文利用虚拟仪器技术以及LabVIEW信号处理工具包,采用载波自乘以及自相关抗噪算法对有效生命信号进行提取,实现了穿墙生命探测系统中的干扰和噪声抑制。该方法进一步减小了失真,并提高了精度和信噪比。穿墙生命探测系统可用于灾害中人员营救及特殊条件下人员的探测。
With the help of virtual instrument technology and signal processing toolkit of LabVIEW,controlling methods of interference on though-the-wall surveillance have been accomplished by using the self-multiplication of the carrier wave and the autocorrelation arithmetic. Compared with the traditional way, this method has a small signal distortion and a high SNR. Though-the-wall surveillance can be used for rescue personnel in the geological disasters, and to determine the location of personnel under special conditions.
出处
《电子测量技术》
2009年第9期34-37,共4页
Electronic Measurement Technology
基金
国家大学生创新计划资助项目(0109185012)
关键词
穿墙生命探测
干扰抑制
自相关
虚拟仪器技术
though-the-wall surveillance
controlling methods of interference
autocorrelation arithmetic
virtual instrument technology