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PMO OpenIR  > 空间目标与碎片观测研究基地  > 期刊论文
题名: The fast co-adding algorithm of QCT
作者: Ping, Yiding; Zhang, Chen
刊名: ADVANCES IN SPACE RESEARCH
出版日期: 2017
卷号: 60, 期号:5, 页码:907-914
英文摘要: This paper presents a fast co-adding algorithm designed to stack the images coming from different channels of QCT in real-time. The algorithm calculates the transformation coefficients for every single exposure to eliminate the effects of the possible shifts of the lenses. The way of reprojection and co-adding applied here is a linear method similar to Drizzle, and a reasonable simplification is applied to accelerate the computation. All the calculation can be finished in about 100 ms on a 3.4 GHz CPU with 4 cores, which matches the needs for the observation of space debris perfectly, while the limiting magnitude is improved by about 0.8. The co-adding results of our algorithm are very close to SWarp's, even slightly better in terms of SNRs. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17361
Appears in Collections:空间目标与碎片观测研究基地_期刊论文

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