Doppler Frequency Offset for High Dynamic Signal with Low SNR

Rui Zhao; Yan Wen Wang; Zhi Jie Wang

doi:10.4028/www.scientific.net/AMR.971-973.1611

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 971-973Doppler Frequency Offset for High Dynamic Signal...

Doppler Frequency Offset for High Dynamic Signal with Low SNR

Abstract:

In this paper, the impact on carrier capture of high dynamic and low SNR signal in satellite communication caused by the rate of change of the carrier frequency offset is analyzed. Firstly, the existing large carrier frequency offset estimate technology is described. Secondly, the rate of change of the carrier frequency offset impact on the carrier frequency offset is analyzed. Finally, the Doppler shift characteristics of Low SNR high dynamic signal and performance impact on the capture carrier are simulated by MATLAB. The results showed that the rate of change of Doppler shift will seriously affect the number of non-coherent accumulation times of the carrier frequency offset estimate.

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Periodical:

Advanced Materials Research (Volumes 971-973)

Pages:

1611-1615

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.971-973.1611

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Online since:

June 2014

Authors:

Rui Zhao*, Yan Wen Wang, Zhi Jie Wang

Keywords:

Doppler Frequency Offset, High Dynamic Signal, Low Earth Orbit (LEO), Satellite Mobile Communication

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* - Corresponding Author

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