College of Information Science and Engineering, China University of Ocean Science,No.338,Songling Road,Laoshan District,Qingdao City,Shandong Province, 266100, China
Abstract：The paper expounded the main characters and adaptive range of some common analytic wavelets through analysis on their math expression and relative waveform and amplitude spectrum.The paper also first introduced the stretched damping sine wavelet—Lee wavelet that is suitable to express the practical shooting seismic wavelet and emphasized that it should use filtering operator normalized in frequency domain when selecting bandpass wavelet for bandpass filtering,which can yield better amplitude-conservative character.It’s known from the comparison of different feature of wide-band Rick wavelet with that of Rick wavelet that the resolution of wavelet mainly depends upon the width of main robe and instantaneous frequencies within the main robe,no relation with the frequency at peak value.So,the Lee wavelet—the stretched damping sine wavelet approximately known as minimum phase wavelet can be used such processing operation as deconvolution because of meeting the demand of hypothesis of minimum phase.
