SAR Raw Data AP Compression Algorithm based on 2D Real-valued Discrete Gabor Transform

摘要：

In this paper, amplitude-phase(AP) algorithm for synthetic aperture radar (SAR) raw data and TwoDimensional Real valued Discrete Gabor Transform (2DRDGT) are studied and AP-Gabor compression algorithm is proposed. In this method, the raw data is divided into blocks at first, each block of raw data is converted into amplitude data and phase data of the same size at polar coordinates, then each block is transformed into time-frequency domain by 2D-RDGT and the desired bits are allocated to each frequency plane, finally each frequency plane is quantized with BAQ(Block Adaptive Quantization). The same raw data is experimented with this method and other existing methods. The experiment results show that this algorithm is superior to existing algorithms in the data domain and the images domain.

关键词： raw data compression time-frequency analysis Gabor transform AP algorithm adaptive bit allocation

作者: Zhang Aihong Luo Haifang Song Hong-mei Zhang Bo

作者单位: Daqing Vocation college,Heilongjing Daqing,163255,China Institute of Electronics,Chinese Academy of Sciences 100190,China Beijing Institute of Machinery & Equipment,Being 101100,China

会议类型: 国际会议

会议名称: The Third International Symposium on Test Automation & Instrumentation(第三届国际自动化测试与仪器仪表学术会议 2010 ISTAI)

会议地点: 厦门

会议语种:英文

页码: 727-730

在线出版日期: 2010-05-22（万方平台首次上网日期，不代表论文的发表时间）