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APES-based procedure for super-resolution SAR imagery with GPU parallel computing

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The amplitude and phase estimation (APES) algorithm is widely used in modern spectral analysis. Compared with conventional Fourier transform (FFT), APES results in lower sidelobes and narrower spectral peaks. However, in synthetic aperture radar (SAR) imaging with large scene, without parallel computation, it is difficult to apply APES directly to super-resolution radar image processing due to its great amount of calculation. In this paper, a procedure is proposed to achieve target extraction and parallel computing of APES for super-resolution SAR imaging. Numerical experimental are carried out on Tesla K40C with 745 MHz GPU clock rate and 2880 CUDA cores. Results of SAR image with GPU parallel computing show that the parallel APES is remarkably more efficient than that of CPU-based with the same super-resolution.

Original languageEnglish
Title of host publicationHigh-Performance Computing in Remote Sensing V
EditorsBormin Huang, Zhensen Wu, Boris A. Alpatov, Sebastian Lopez, Jose M. Nascimento, Jordi Portell de Mora
PublisherSPIE
ISBN (Electronic)9781628418569
DOIs
StatePublished - 2015
EventHigh-Performance Computing in Remote Sensing V - Toulouse, France
Duration: 21 Sep 201522 Sep 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9646
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceHigh-Performance Computing in Remote Sensing V
Country/TerritoryFrance
CityToulouse
Period21/09/1522/09/15

Keywords

  • APES
  • SAR image
  • graphics processor unit (GPU)
  • parallel computing
  • super-resolution
  • target extraction

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