Title :
Method of Improving Resolution of Seismic Signals by Using Matching Pursuit Decomposition and Wavelet Packet
Author :
Long Liu ; JunQi Song ; XiaoJun Chang ; Hong Song ; Qiang Luo ; Yun Hao Zhang
Author_Institution :
Xi´an Univ. of Technol., Xi´an, China
Abstract :
This paper proposes a algorithm of improving the resolution of seismic signals by using matching pursuit decomposition and wavelet packet method. The algorithm adopts to add to the function factor before Time-frequency element and the transformation of wavelet packet decomposition rate of the conjugate filter to achieve the purpose of improving resolution. Experimental results show that the signal of high frequency increased in the decomposition and synthesis process, and greatly improve the resolution of the seismic signal.
Keywords :
geophysical techniques; seismology; time-frequency analysis; conjugate filter; function factor; matching pursuit decomposition; seismic signals; time-frequency element; wavelet packet decomposition rate; wavelet packet method; Filtering algorithms; Matched filters; Matching pursuit algorithms; Signal resolution; Time frequency analysis; Wavelet packets;
Conference_Titel :
Pattern Recognition (CCPR), 2010 Chinese Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-7209-3
Electronic_ISBN :
978-1-4244-7210-9
DOI :
10.1109/CCPR.2010.5659326