Aliased Noise of Optical Sampling Imaging System for Space Remote Sensing

doi:10.3780/j.issn.1000-758X.2011.06.007

Chinese Space Science and Technology ›› 2011, Vol. 31 ›› Issue (6): 43-49.doi: 10.3780/j.issn.1000-758X.2011.06.007

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Aliased Noise of Optical Sampling Imaging System for Space Remote Sensing

JIANG Wei¹, CHEN Shi-Ping²

(1 Beijing Institute of Space Mechanics & Electricity， Beijing 100076)
(2 China Academy of Space Technology， Beijing 100081)

Received:2011-01-24 Revised:2011-12-25 Published:2011-12-25 Online:2011-12-25

Abstract

Abstract: In order to exactly calculate the ratio of aliased noise in optical sampling imaging system for space remote sensing and analyze the influence of the system parameters，all leading noise sources were statistically modeled with an experimental scene model，and a noise calculating model including aliased noise was brought forward. By using this model，the ratio of aliased noise power was calculated with a spaceborne high resolution camera imaging system parameters，and the situations with different λF/p and different scene were simulated. The results show that the ratio of aliased noise is high in a spaceborne high resolution camera imaging system，and the aliased noise can be reduced by increasing λF/p.

Key words: Optical sampling imaging system, Aliased noise, Space remote sensing

JIANG Wei, CHEN Shi-Ping. Aliased Noise of Optical Sampling Imaging System for Space Remote Sensing[J]. Chinese Space Science and Technology, 2011, 31(6): 43-49.

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https://journal26.magtechjournal.com/kjkxjs/EN/Y2011/V31/I6/43

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Aliased Noise of Optical Sampling Imaging System for Space Remote Sensing

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