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Content available Acquisition and tracking performance of satellite navigation system signal using tiered differential polyphase code
Jo Gwang Hee, Lee Ju Hyun, Noh Jae Hee, Lee Sang Jeong, Lee Jin Hyuk
Annual of Navigation
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2019
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No. 26
5--11
EN
In this paper, we analyze the acquisition and tracking performance of signal using a tiered differential polyphase code as the secondary code. The Zadoff-Chu sequence is known to have a CAZAC (Constant Amplitude Zero Auto-Correlation) characteristics. The secondary code generated by differential encoding of the Zadoff-Chu sequence also has the same characteristics as the Zadoff-Chu sequence. Therefore, long integration will give better correlation results. We compare signal acquisition and tracking performance when using the NH sequence and Zadoff-Chu sequence as the secondary code. Monte-carlo simulation is performed using MATLAB. We use the probability of detection and the mean acquisition time for signal acquisition performance and tracking jitter for signal tracking performance.
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