Title :
SAR raw signal simulation based on GPU parallel computation
Author :
Bingnan, Wang ; Fan, Zhang ; Maosheng, Xiang
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
In this paper we present a raw signal simulator based on GPU parallel computation for synthetic aperture radar. We describe a mathematical model of SAR simulation based on FFT in detail and implement it through GPU parallel computation. GPU has a better performance in complex calculation than CPU. It supports parallel computation and raises the speed of algorithms. At the last part of this paper, a simulation comparison is given. The result shows that the simulator base on GPU parallel computation improves the efficiency of algorithm. It is very useful when the algorithm consumes large amount of CPU time.
Keywords :
geophysical signal processing; geophysical techniques; parallel processing; remote sensing by radar; synthetic aperture radar; CPU time; FFT; GPU parallel computation; GPU parallel processing; SAR raw signal simulation; algorithm speed; algorithm. efficiency; mathematical model; synthetic aperture radar; Computational modeling; Computer graphics; Concurrent computing; Distributed computing; Frequency domain analysis; Laboratories; Microwave imaging; Microwave technology; Parallel processing; Synthetic aperture radar; GPU; parallel processing; simulation; synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5417452
