A novel open-loop timing synchronization algorithm for frequency-hopping system

Deguang Zhao; Xuhui Ding; Yuchen Xu; Yi Cheng; Yue Zhang; Xiangyuan Bu; Mei Yang

doi:10.1117/12.2665414

4 April 2023 A novel open-loop timing synchronization algorithm for frequency-hopping system

Deguang Zhao, Xuhui Ding, Yuchen Xu, Yi Cheng, Yue Zhang, Xiangyuan Bu, Mei Yang

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126172Y (2023) https://doi.org/10.1117/12.2665414
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

Frequency hopping (FH) communication system is known as an important direction of research in the field of satellite communication. Timing synchronization, as the process in which signal timing error is eliminated, serves as the basis for the realization of FH synchronization and data transmission, enabling it to be one of the key technologies of the whole system. Due to the characteristics of short frame burst possessed by the FH system, it is required that the system should complete the detection and tracking of signal timing error quickly, which requires high performance of timing synchronization. Through the improvement in the Gardner timing error detection algorithm, as well as use of the shifting of sampling position and interpolation with fixed fractional interval, there is the design of an open-loop timing synchronization algorithm with low complexity and strong real-time performance. With this algorithm, the system can have a bit error rate (BER) lower than 10-7 and no data loss with a clock deviation of 1ppm. Experimental results demonstrate the performance of the algorithm, the algorithm ensures low complexity and no data loss during synchronization process.

Citation Download Citation

Deguang Zhao, Xuhui Ding, Yuchen Xu, Yi Cheng, Yue Zhang, Xiangyuan Bu, and Mei Yang "A novel open-loop timing synchronization algorithm for frequency-hopping system", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126172Y (4 April 2023); https://doi.org/10.1117/12.2665414

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