A Synchronization Tracking Algorithm to Compensate the Drift of Satellite in FH-FDMA Satellite Communication System 


Vol. 33,  No. 2, pp. 159-166, Feb.  2008


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  Abstract

In this paper, we proposed an algorithm to solve the problem that can't maintain hop synchronization using only early-late gate tracking loop due to the drift of geo-stationary satellite in frequency hopping satellite communication system. When the signal is transferred to downlink through DRT(Dehop-Rehop Transponder), the problem with synchronization loss is occurred periodically when using only early-late gate tracking loop, because of energy loss in each side portion of hop due to orbital variation of the satellite. To solve this problem, we have developed Anti-Shrink synchronization tracking algorithm which uses the prediction value of transmission timing and the structure of inner-outer gate instead of early-late gate with the ranging information. Through simulations, we showed that the performance of the Anti-Shrink algorithm is better than that of simple inner-outer energy ratio algorithm and similar to that of conventional early-late tracking loop algorithm with ranging information. No synchronization failure in the proposed algorithm was occurred because of less energy loss and robustness without the ranging information.

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  Cite this article

[IEEE Style]

S. Bae, S. Kim, Y. Choi, B. Jin, "A Synchronization Tracking Algorithm to Compensate the Drift of Satellite in FH-FDMA Satellite Communication System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 2, pp. 159-166, 2008. DOI: .

[ACM Style]

Suk-neung Bae, Su-il Kim, Young-kyun Choi, and Byoung-il Jin. 2008. A Synchronization Tracking Algorithm to Compensate the Drift of Satellite in FH-FDMA Satellite Communication System. The Journal of Korean Institute of Communications and Information Sciences, 33, 2, (2008), 159-166. DOI: .

[KICS Style]

Suk-neung Bae, Su-il Kim, Young-kyun Choi, Byoung-il Jin, "A Synchronization Tracking Algorithm to Compensate the Drift of Satellite in FH-FDMA Satellite Communication System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 2, pp. 159-166, 2. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880