摘要(英) |
With the rapid development of digital satellite communication technology, high data rate communication has become a popular topic and technological direction in the satellite communication. Satellite communication systems have been widely used in areas such as digital satellite television and data transmission standards. The DVB-S2 standard provides high spectrum efficiency and powerful error correction capabilities, allowing the overall system design to operate effectively in low signal-to-noise ratio (SNR) environments, thus adapting to various transmission environments.
This thesis primarily focuses on the study of the symbol timing synchronization problem in the DVB-S2 receiver, with the aim of evaluating its performance for hardware implementation. In particular, the thesis explores blind timing synchronization methods, which do not require decision data or pilot signals, and do not necessitate carrier synchronization prior to recovering symbol signals. The advantage of this approach is its ability to maintain spectrum efficiency, while its drawback is slower convergence. Lastly, to meet the requirements of high throughput, an architecture for parallel signal processing is proposed, incorporating high-throughput matched filters and high-throughput symbol timing synchronizers. |
參考文獻 |
[1] Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications; Part 1: DVB-S2, ETSI EN 302 307-1 V1.4.1, ETSI, 2014.
[2] S.-P. Mao, "以軟體定義無線電平台設計與實現 DVB-S2 發射機," National Central University, 2017.
[3] F. M. Gardner, "Interpolation in digital modems. I. Fundamentals," IEEE Transactions on communications, vol. 41, no. 3, pp. 501-507, 1993.
[4] K. Mueller and M. Muller, "Timing recovery in digital synchronous data receivers," IEEE transactions on communications, vol. 24, no. 5, pp. 516-531, 1976.
[5] F. Gardner, "A BPSK/QPSK timing-error detector for sampled receivers," IEEE Transactions on communications, vol. 34, no. 5, pp. 423-429, 1986.
[6] Q. M. Chaudhari, Wireless Communications from the Ground Up: An SDR Perspective. 2018.
[7] Y.-l. Zhao, J. Lv, and J. Wang, "An improved algorithm for timing error detection based on all-digital receiver," in Journal of Physics: Conference Series, 2020, vol. 1550, no. 2: IOP Publishing, p. 022035.
[8] L. Erup, F. M. Gardner, and R. A. Harris, "Interpolation in digital modems. II. Implementation and performance," IEEE Transactions on communications, vol. 41, no. 6, pp. 998-1008, 1993.
[9] Y.-c. Lo, "DVB-S2 接收器之 FPGA 實現," National Central University, 2015.
[10] P.-H. Chen, "以軟體定義無線電設計與實現 ACM 機制 DVB-S2 收發機," National Central University, 2022.
[11] U. Mengali, Synchronization techniques for digital receivers. Springer Science & Business Media, 1997.
[12] H. Meyr, M. Moeneclaey, and S. A. Fechtel, Digital communication receivers: synchronization, channel estimation, and signal processing. Wiley Online Library, 1998. |