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http://dx.doi.org/10.7471/ikeee.2020.24.2.649

Comparison on Various Acquisition Method for GPS L1 C/A  

Park, Jiwoon (Dept. of Electronics Engineering, Chungnam National University)
Yoo, Hoyoung (Dept. of Electronics Engineering, Chungnam National University)
Publication Information
Journal of IKEEE / v.24, no.2, 2020 , pp. 649-653 More about this Journal
Abstract
GPS is a representative satellite navigation system that provides users with accurate location and time information. GPS L1 C / A is opened for civilian and thus utilized in various fields. When the satellite signal reaches the receiver, signal acquisition unit of the digital signal processing hardware searches and acquires the signal among visible satellites. The signal acquisition unit has different implementation methods depending on the signal searching method, such as serial search acquisition, parallel frequency search, parallel code phase search. In this paper, we compare and analyze the three representative acquisition hardwares using live GPS L1 C/A signals. According to the comparison, the parallel code phase search acquisition outperforms the other methods due to reduction of the number of the searchings and a high resolution.
Keywords
GPS L1 C/A; Acquisition; Serial search; Parallel frequency search; Parallel code phase search;
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