In this paper, new algorithm for Detecting the Live after Earthquake is presented. Here the application of the CW Radar with frequency 2.45GHz in a portable system for detecting the live below a mass of concrete or trash is introduced. The characters of radar hardware are shown too. The software which is used for computer process is LabVIEW, that some part of it is presented. Output of the Radar system which is analog convert to digital signal and enters into PC then for using of continues filtering by a section of the program digital signal is converted to an analog signal again. Now a software band-pass filter with variable pass band is applied, which change the quantity of the system. For the mathematic analyze a special wavelet transform (in-place kind) is applied that its algorithm and its mathematic debate are existed.