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.
 H. Li, M. Lu, and Z. Feng, “Partial-correlation-result reconstruction technique for weak global navigation satellite system long pseudo-noise-code acquisition,” , IET Radar Sonar Navig., 2011, vol. 5, no. 7, pp. 731–740.
 J. Leclère, C. Botteron, and P. A. Farine, „Acquisition of modern GNSS signals using a modified parallel code-phase search architecture”, Signal Process., 2014, vol. 95, pp. 177-191.
 S. K. Han, J. Kim, J. K. Kim, A. Han, K. Kim, K. Song, S.-J. Lee, and J. M. Ahn, “Frequency ambiguity free tiered-differential polyphase codes for GNSS signal design,” Institution of Engineering and Technology (IET) Electronic Letters, 2017, vol. 53, no. 9, pp. 598-600.
 D. C. Chu, „Polyphase Codes with Good Periodic Correlation Properties”, IEEE Trans. Info. Theory, 1972, pp. 531-532.
 China Satellite Navigation Office, “BeiDou Navigation Satellite System Signal In Space Interface Control Document Open Service Signal B1C (Version 1.0),” 2017.
 S. H. Park, I. H. Choi, S. J. Lee, Y. B. K, “A Novel GPS Initial Synchronization Scheme using Decomposed Differential Matched Filter”, Proceedings of the 2002 National Technical Meeting of The Institute of Navigation, 2002, pp. 246-253