NSSC OpenIR  > 微波遥感部
Alternative TitleThe Windowed Back Pro Jection Imaging Method forInterferometric Radiometer
张成; 吴季; 北京8701信箱
Source Publication电子与信息学报
Keyword综合孔径 干涉被动微波成像 投影变换 加窗反投影
Other AbstractThis paper investigats the imaging theory of the Rotate Scanning Synthetic Aperture Interferometric Radiometer (RS-SAIR) which has a non-Cartesian sampling scheme, and proposes a new imaging algorithm based on windowing back projection. The critical feature of this algorithm is that it takes back projection as the main imaging tool instead of 2-D Cartesian grid Fourier transform, and it involves only 1-D tapered FFT and back projection, which avoids the interpolations from polar sampling grids to Cartesian grids, and could perform imaging and sampling simultaneously, then it leads to a more accurate and fast imaging performance. Being a critical step the windowing effect is analyzed,and different window function is test to show the spatial resolution and noise control of the reconstructed image. Further more,the sampling is analyzed and a rational strategy is achieved. Finally, the imaging of a 2-D scene with a RS-SAIR system is simulated.The comparison of the parameters in the mean square errors and cross correlation coefficient with various methods indicates that the proposed new algorithm is superior to other Cartesian FFT based methods.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:5[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
张成,吴季,北京8701信箱. 基于加窗反投影的干涉式微波辐射计成像算法[J]. 电子与信息学报,2008,30(5):1064-1067.
APA 张成,吴季,&北京8701信箱.(2008).基于加窗反投影的干涉式微波辐射计成像算法.电子与信息学报,30(5),1064-1067.
MLA 张成,et al."基于加窗反投影的干涉式微波辐射计成像算法".电子与信息学报 30.5(2008):1064-1067.
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