穿墙生命探测系统干扰抑制方法的研究与实现

Research for controlling methods of interference on though-the-wall surveillance

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.