Abstract：Insufficient spatial resolution of detectors is an obstacle to capturing spectra with high resolution. An effective solution is sub-pixel restoration, which can restore a high resolution spectrogram from sub-pixel shifted low resolution ones. In the present paper, an algorithm for sub-pixel restoration is suggested. It utilizes the bidirectional recursive relation between sub-pixel values and estimates each sub-pixel value from both directions of head-end and end-head. As a result, the averaged value will be accepted as the sub-pixel value. Numerical experiments on single gauss profile and superposition ones verified the effectiveness of the algorithm.
杨怀栋，陈科新，何庆声，金国藩. 亚像元光谱图重建算法[J]. 光谱学与光谱分析, 2009, 29(12): 3169-3172.
YANG Huai-dong, CHEN Ke-xin, HE Qing-sheng, JIN Guo-fan. Algorithm for Restoring Spectrogram with Sub-Pixel Resolution . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(12): 3169-3172.
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