信息与电子工程2012，Vol.10Issue(1)：98-102,5.
基于GPU的SAR方位向信号分解的高效实现方法
A highly efficient GPU-based method for decomposing SAR azimuth signal
张相广 1吴长朋 1高叶盛 1王开志 1郁文贤1
作者信息
- 1. 上海交通大学电子工程系,上海200240
- 折叠
摘要
Abstract
A highly efficient Graphics Processing Unit(GPU) based method for decomposing SAR azimuth signal is presented. SAR azimuth signal is decomposed by the four-parameter Chirplet decomposition method. This method needs excessive computation mainly to construct Chirp atomic dictionary and decompose SAR azimuth signal in the over-complete dictionary. Compared with CPU, GPU is well suited for data parallel computations with high arithmetic intensity. A new method is introduced that takes full advantage of GPU's computation capability by transferring the key part of the algorithm to GPU.The experimental results shows that this method is more than ten times as fast as traditional CPU based algorithms.关键词
四参数Chirplet分解/合成孔径雷达/Chirp原子库/图形处理器Key words
four-parameter Chirplet decomposition/Synthetic Aperture Radar/Chirp atomic dictionary/Graphics Processing Unit分类
信息技术与安全科学引用本文复制引用
张相广,吴长朋,高叶盛,王开志,郁文贤..基于GPU的SAR方位向信号分解的高效实现方法[J].信息与电子工程,2012,10(1):98-102,5.
