GPS L5 Acquisition Schemes for Fast Code Detection and Improved Doppler Accuracy

In this letter, we propose GPS L5 acquisition schemes to detect a fast code phase and improve the accuracy of the Doppler frequency. The proposed approach is based on the code-phase changes which occur during the acquisition processing time originating in the Doppler frequency. The proposed schemes...

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Published in:ETRI journal 2010-02, Vol.32 (1), p.142-144
Main Authors: Joo, In-One, Sin, Cheon-Sig, Lee, Sang-Uk, Kim, Jae-Hoon
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Sin, Cheon-Sig
Lee, Sang-Uk
Kim, Jae-Hoon
description In this letter, we propose GPS L5 acquisition schemes to detect a fast code phase and improve the accuracy of the Doppler frequency. The proposed approach is based on the code-phase changes which occur during the acquisition processing time originating in the Doppler frequency. The proposed schemes detect a fast code phase within about 1 chip near the estimated code phase and improve the accuracy of the Doppler frequency by up to about 4 times in comparison with the popular Septentrio receiver. The feasibility of the proposed schemes is demonstrated through simulation.
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title GPS L5 Acquisition Schemes for Fast Code Detection and Improved Doppler Accuracy
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