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2010 Asia-Pacific Conference on Information Theory (APCIT 2010 E-BOOK)

Xi'an,China,10.1-10.2,2010

ISBN: 978-1-935068-47-1 Scientific Research Publishing, USA

E-Book 506pp Pub. Date: November 2010

Category: Computer Science & Communications

Price: $80

Title: Realization of a Doppler Estimation and Compensation Method on Satellite Transceiver for Wide Temperature Range
Source: 2010 Asia-Pacific Conference on Information Theory (APCIT 2010 E-BOOK) (pp 438-441)
Author(s): Xiaoyun Yu, Dept. of Electronic and Information Engineering, BJTU, Beijing, China
Jianjun Hou, Dept. of Electronic and Information Engineering, BJTU, Beijing, China
Abstract: The local frequency shift on the satellite transceiver caused by temperature change may bring large error to the Doppler shift estimation. This paper presents a Doppler estimation and compensation method based on the relation curve between temperature and Doppler estimation shift of TXCO. According to the er- ror accuracy of system requirements, this method first fits the above curve to a fifth order polynomial and then compute the controlling parameter input to VXCO in order to correct the Doppler estimation’s deviations. Theoretic and test results show that when the temperature ranges from -45 centigrade to 60 centigrade, the proposed technique can significantly improve the Doppler frequency shift error.
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