Abstract：This paper studies intensively the "bilinear interpolation and 2D-IFFT" method of reconstructing image from the unevenly spaced data in the spatial frequency domain. The basic ideas are to decide an evenly grid, interpolate the unevenly spaced data on a uniform grid and take the 2D-IFFT of the data on the uniform grid. The paper presents the principle of deciding the grid, discusses bilinear interpolation and analyses some important problems of 2D-IFFT. The method has been applied to synthetic aperture radar(SAR) imaging and the result is satisfactory.
王军锋; 毛引芳. 由空间频域上的非均匀采样数据重建图象的方法研究[J]. 电子与信息学报, 1997, 19(4): 459-463 .
Wang Junfeng; Mao Yinfang. STUDY ON THE METHOD OF RECONSTRUCTING IMAGE FROM THE UNEVENLY SPACED DATA IN THE SPATIAL FREQUENCY DOMAIN. , 1997, 19(4): 459-463 .
1997, Vol. 19 
