论文信息 - A comparison of fast factorised back-projection and wavenumber algorithms

A comparison of fast factorised back-projection and wavenumber algorithms

The Fast Factorised Back-Projection (FFBP) algorithm has received considerable attention recently for SAS image reconstruction. The FFBP algorithm provides a means of trading image quality and/or resolution for a reduction in computational cost over standard Back-Projection. In this paper we describe FFBP for SAS image reconstruction and compare it to the Wavenumber algorithm in terms of computational cost and image quality. The FFBP algorithm significantly out-performs standard Back-Projection. However, we have found that FFBP is out-performed by the Wavenumber algorithm. Further investigation is required to determine which algorithm is more desirable for motion compensation and multiple-receiver reconstruction.

Michael P. Hayes | P. T. Gough | Alan J. Hunter

[1] Shu Xiao,et al. An N2logN back-projection algorithm for SAR image formation , 2000, Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154).

[3] Yoram Bresler,et al. An Back-Projection Algorithm for SAR Image Formation , 2000 .

[4] David William Hawkins,et al. Synthetic aperture imaging algorithms : with application to wide bandwidth sonar , 1996 .

[5] W. Kenneth Jenkins,et al. Convolution backprojection image reconstruction for spotlight mode synthetic aperture radar , 1992, IEEE Trans. Image Process..

[6] Simon Michael Banks. Studies in high resolution synthetic aperture sonar , 2003 .