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Due to platform uncertain motion, the trajectory of airborne millimeter-wave interferometric synthetic aperture radar (MMW-InSAR) usually demonstrates highly non-linear associated with position errors. Hence, motion compensation must be considered for airborne MMW-InSAR high resolution imaging. In this paper, a back projection (BP) autofocusing algorithm via maximum sharpness is presented for MMW-InSAR...
Back projection (BP) algorithm has the ability of accurate imaging for synthetic aperture radar (SAR). However, the drawback of low computational efficiency limits the wide application of BP. In this paper, three different parallel schemes based on GPU for BP are presented. According to the features of serial structure of BP, the first two schemes are parallelized through mapping the pulse repetition...
The back projection (BP) algorithm is highly effective in bistatic SAR imaging. But it is time-consuming for the large scene imaging. In this paper, we propose a GPU-based parallel BP algorithm, the range compression and back projection are implemented on the graphics processing unit (GPU) using CUDA language. We also present some optimum methods including memory optimization, phase accumulator reduction...
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