Title :
A New Algorithm for SAR Raw Data Compression by Using Wavelet Packets
Author :
Zhou, Mei ; Deng, Yunkai ; Zhang, Zhimin
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing
Abstract :
Considering the statistical independent property between phase and amplitude of SAR raw data, a new method is provided that the amplitude and phase of raw data are compressed respectively based on wavelet packet transform (WPT) after a thorough analysis on the decomposed wavelet packet coefficients of the amplitude. By using the real SAR raw data, the performances achieved in terms of certain parameters have been evaluated. The results show that this algorithm is superior to the traditional BAQ algorithm, simultaneously in terms of the reservation of phase information
Keywords :
data compression; radar signal processing; synthetic aperture radar; wavelet transforms; SAR raw data compression; decomposed wavelet packet coefficients; raw data amplitude; raw data phase; wavelet packet transform; Algorithm design and analysis; Compression algorithms; Data compression; Gaussian distribution; Performance evaluation; Quantization; Synthetic aperture radar; Wavelet analysis; Wavelet packets; Wavelet transforms;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.346006
