衛星分時多工突波訊號偵測技術

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姓名

郭良偉(Liang-Wei Kuo) 查詢紙本館藏

畢業系所

資訊工程學系在職專班

論文名稱

衛星分時多工突波訊號偵測技術
(Detection Technology for Time Division Multiple Access Burst Signals in Satellites)

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摘要(中)

分時多工的突波通訊方式，可以提升在有限頻寬中的頻率運用效率，但由於衛星訊號能量微弱及突波訊號的猝發性，易造成資料錯誤或遺失，在此情況下會增加通訊錯誤率或造成通訊延時的情況。因此本研究設計一個結合F檢測、能量偵測以及匹配濾波等多個面向的突波訊號偵測演算法，藉由兩段相鄰訊號框架進行移動平均及F檢測，取得兩段相鄰時間內訊號間的相似度，來判斷訊號是否正在劇烈變化，作為突波起始點的預測，並搭配能量偵測以及匹配濾波的方法，針對預測開啟時間之後的一段區間內尋找最大值，來取得突波開啟的準確時間。實驗分別針對一般情況、背景雜訊強以及脈衝干擾等狀態下進行驗證，其偵測率及正確率均優於一般偵測法，可知本研究之演算法能加強突波通訊品質及穩定性，避免通訊錯誤或延時的情況。

摘要(英)

The use of time division multiple access as a burst communication method can improve the efficiency of frequency allocation in limited-frequency bands. However, the weak energy of satellite signals and the bursting feature of burst signals are prone to engender data errors or loss. Such conditions increase incidence levels of communication errors and cause delays in communication. Therefore, this study designed an algorithm for burst-signal detection that integrates multiple methods, such as the F-test, energy detection, and matched filters. In the proposed algorithm, measures of moving average and F-test are implemented on two adjacent signal frames to obtain the similarity of the signals between two adjacent time points, thereby determining whether the signals are changing drastically. The results are then used to predict the starting point of the burst. Subsequently, the maximum value within the prediction time is identified using energy detection and matched-filter detection to acquire the precise opening time of the burst. The experiment presented in this paper was carried out under normal conditions in an environment with strong background noise and with pulsed interference for verification. The detection rate and accuracy rate for the proposed method were more favorable than those for general detection methods, indicating that the proposed algorithm may be used to enhance the quality and stability of burst communications, thereby preventing communication errors and delays.

關鍵字(中)

★ 分時多工
★ 突波

關鍵字(英)

論文目次

摘要 I
ABSTRACT II
誌謝 I
目錄 II
圖目錄 IV
表目錄 VI
第一章、緒論 1
1.1 研究背景與動機 1
1.2 研究目的 2
1.3 論文架構 3
第二章、技術回顧 4
2.1 衛星通訊 4
2.2 多重通道擷取技術 7
2.3 突波偵測 11
2.4 調變技術 13
第三章、演算法設計 19
3.1 突波訊號解調 19
3.2 突波偵測 22
3.3 能量偵測 24
3.4 匹配濾波 26
3.5 F檢測 27
第四章、實驗 31
4.1 實驗平台 31
4.2 突波偵測實驗 33
4.3 F檢測參數驗證 36
4.4 抗雜訊驗證 39
第五章、結論 45
5.1、結論 45
5.2、未來展望 46
參考文獻 47

參考文獻

[1] J. R. Pierce and R. Kompfner, “Transoceanic communication by means of satellites”, Proceedings of the IRE, vol. 47, no. 3, pp. 172-180, 1959
[2] A. C. Clarke, “Extra-terrestrial relay”, Wireless World, October 1945, pp. 305-308, 1945.
[3] D. Chakraborty, “VSAT communications networks-an overview” , IEEE Communications Magazine, vol. 26, no. 5, pp. 10-24, 1988.
[4] D. Mishra, K. S. Dasgupta and S. Jit “Efficient QPSK burst demodulator for onboard application”, International Journal of Computer Science and Information Technologies, vol. 3, no. 3, pp. 4053-4058, 2012.
[5] D. Mishra, A. Topiwala and K. S. Dasgupta, “Design, implementation and realization of 64Kbps QPSK based burst demodulator for onboard application”, in Proc. Int. Conf. Emer. Trend. Elec. Phot. Dev. Syst., Varanasi, Dec. 2009, pp. 222-225.
[6] M. Andronico, S. Casale and A. L. Corte, “A new algorithm for fast synchronization in a burst mode PSK demodulator”, in Proc. IEEE. Int. Conf. Comm. ICC., Seattle, June 18-22, June. 1995, pp. 1641-1646.
[7] S. Kalle, M. R. Choudhury and F. Bui, “Performance of unique word timing offset estimator”, in Proc. IEEE. Can. Conf. Electrical and Computer Engineering (CCECE), Regina, May. 2013.
[8] A. Bruce and B.Crilly, Communication Systems, 5 edition, McGraw-Hill Companies, New York, 2011.
[9] X. Zhu, C. Jiang, L. Kuang, N. Ge and J. Lu, “Non-Orthogonal Multiple Access Based Integrated Terrestrial-Satellite Networks”, IEEE Journal on Selected Areas in Communications, vol. 35, no. 10, pp. 2253 – 2267, Oct. 2017.
[10] J. Ebert and O. Koudelka, “Efficient Encapsulation and Multiplexing in Meshed MF-TDMA Satellite Systems”, in Proc. IEEE. 2nd Int Symp. Wireless Communication Systems, Siena, Sep. 2005, pp. 842-846.
[11] E. D. Re, A. Fanfani and S. Morosi, “Robust modem design for satellite communications in emergency scenarios”, in Proc. IEEE. Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop, Livorno, Sep. 2014, pp. 144-149.
[12] S. Haykin, Communication Systems, 4 edition, John Wiley & Sons, New York, 2001.
[13] F. G. Stremler, Introduction to Communication Systems, Addison Wesley Longman, Boston, 1990.
[14] Ching-Han Chen, Ming-Yi Lin, Xing-Chen Guo, “High-level Modeling and Synthesis of Smart Sensor Networks for Industrial Internet of Things”, Computers & Electrical Engineering, Vol.61, July. 2017, pp.48–66.
[15] M. Lefebvre, Applied Probability and Statistics, Springer, Berlin ,2006.
[16] F. Kienle, Architectures for Baseband Signal Processing, Springer, Berlin ,2013.
[17] MathWorks, “Matlab”, [Online] https://www.mathworks.com/products/matlab.html
[18] AIRSPY, “AirSpy R2”, [Online] https://airspy.com/airspy-r2/
[19] O. Bialer, U. Ram and G. Levitas, “Mobile satellite TDMA communications robust burst repetition despreading”, in Proc. IEEE. 8th European Conf. on Antennas and Propagation (EuCAP), The Hague, Apr. 2014, pp. 2440-2444.

指導教授

陳慶瀚(Qing-Han Chen)

審核日期

2018-6-26

推文