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Distributed two-dimensional Fourier ...
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Smith, Jeffrey Scott.
Distributed two-dimensional Fourier Transforms on DSPs: With an applications for phase retrieval.
紀錄類型:
書目-電子資源 : 單行本
正題名/作者:
Distributed two-dimensional Fourier Transforms on DSPs: With an applications for phase retrieval./
作者:
Smith, Jeffrey Scott.
面頁冊數:
82 p.
附註:
Source: Masters Abstracts International, Volume: 45-02, page: 1010.
Contained By:
Masters Abstracts International45-02.
標題:
Engineering, Electronics and Electrical. -
電子資源:
Download PDF (下載PDF全文)
ISBN:
9780542960079
Distributed two-dimensional Fourier Transforms on DSPs: With an applications for phase retrieval.
Smith, Jeffrey Scott.
Distributed two-dimensional Fourier Transforms on DSPs: With an applications for phase retrieval.
- 82 p.
Source: Masters Abstracts International, Volume: 45-02, page: 1010.
Thesis (M.S.)--University of Maryland, College Park, 2006.
Many applications of two-dimensional Fourier Transforms require fixed timing as defined by system specifications. One example is image-based wavefront sensing. The image-based approach has many benefits, yet it is a computational intensive solution for adaptive optic correction, where optical adjustments are made in real-time to correct for external (atmospheric turbulence) and internal (stability) aberrations, which cause image degradation.
ISBN: 9780542960079Subjects--Topical Terms:
170927
Engineering, Electronics and Electrical.
Distributed two-dimensional Fourier Transforms on DSPs: With an applications for phase retrieval.
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Many applications of two-dimensional Fourier Transforms require fixed timing as defined by system specifications. One example is image-based wavefront sensing. The image-based approach has many benefits, yet it is a computational intensive solution for adaptive optic correction, where optical adjustments are made in real-time to correct for external (atmospheric turbulence) and internal (stability) aberrations, which cause image degradation.
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For phase retrieval, a type of image-based wavefront sensing, numerous two-dimensional Fast Fourier Transforms (FFTs) are used. To meet the required real-time specifications, a distributed system is needed, and thus, the 2-D FFT necessitates an all-to-all communication among the computational nodes. The 1-D floating point FFT is very efficient on a digital signal processor (DSP). For this study, several architectures and analysis of such are presented which address the all-to-all communication with DSPs. Emphasis of this research is on a 64-node cluster of Analog Devices TigerSharc TS-101 DSPs.
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Download PDF (下載PDF全文)
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