Title :
A GPU Based Range-Doppler Algorithm for SAR Imaging in OpenCL
Author :
Zhao, Shuqing ; Wang, Ruonan
Author_Institution :
Sch. of Inf. Sci. & Eng., Harbin Inst. of Technol. at Weihai, Weihai, China
Abstract :
This paper presents a GPU based Range-Doppler radar imaging algorithm. It is implemented in OpenCL, which is deemed to be the industrial standard in the field of heterogeneous computing. Intensive floating-point calculations, for instance, large-scale FFTs, are effectively parallelized in this algorithm. The performance is promoted by orders of magnitude compared with CPU based implementation. It is able to process the data in real time by a single GTX 280 GPU under a practical condition.
Keywords :
Doppler radar; fast Fourier transforms; graphics processing units; parallel processing; radar imaging; synthetic aperture radar; CPU based implementation; GPU based range-Doppler radar imaging algorithm; OpenCL; SAR imaging; heterogeneous computing; industrial standard; intensive floating-point calculations; large-scale FFTs; single GTX 280 GPU; Azimuth; Computer architecture; Graphics processing unit; Kernel; Real time systems; Signal processing algorithms; Testing; GPGPU; Heterogeneous Computing; OpenCL; Parallel Computing; Range-Doppler; SAR;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control, 2011 First International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-0-7695-4519-6
DOI :
10.1109/IMCCC.2011.65
