Hardware Implementation of Doppler Shift Estimation and Compensation in LEO Satellite Communication

Kang Wu; Yi Jun Chen; Zhuang Ping Qi; Hui Jie Liu; Xu Wen Liang

doi:10.4028/www.scientific.net/AMR.791-793.2076

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 791-793Hardware Implementation of Doppler Shift...

Hardware Implementation of Doppler Shift Estimation and Compensation in LEO Satellite Communication

Abstract:

In the low earth orbit (LEO) satellite communication systems, in which receiver and transmitter are not fixed and have significant relative velocity, the fast time-varying Doppler frequency shift is high, which degrades the performance of acquisition and tracking. Doppler frequency shift and Doppler frequency rate can be calculated by the terrestrial system based on the satellite orbit and the relative velocity. In this paper, we introduce the Doppler compensation principle and the realization of Doppler shift estimation and compensation on an universal wireless signal processing platform. The experimental results showed that the Doppler compensation model have high accuracy, which is positively correlated with the Doppler frequency rate.

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Periodical:

Advanced Materials Research (Volumes 791-793)

Pages:

2076-2080

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.791-793.2076

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Online since:

September 2013

Authors:

Kang Wu, Yi Jun Chen, Zhuang Ping Qi, Hui Jie Liu, Xu Wen Liang

Keywords:

Doppler Compensation, Doppler Frequency Rate, Doppler Frequency Shift, LEO Satellite Communication Systems

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