使用H∞濾波器之低軌衛星衛星通信系統載波頻率偏移估測研究

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姓名

鄭竣鴻(Chun-Hung Cheng) 查詢紙本館藏

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通訊工程學系

論文名稱

使用H∞濾波器之低軌衛星衛星通信系統載波頻率偏移估測研究
(Carrier Frequency Offset Estimation by Using H-infinity Filters for LEO Satellite Communication Systems)

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摘要(中)

這篇論文探討了在低軌衛星(low earth orbit)通信系統中採用H_∞濾波器進行頻率偏移估測。由於移動終端和衛星之間的相對速度較高，低地球軌道衛星通信信號會遭受嚴重的多普勒頻移。本論文提出一種，基於正交分頻多工(OFDM)的LEO衛星傳輸調適性通訊演算法，以改善多普勒頻偏，本論文使用H_∞濾波器，並結合地理空間位置(衛星運行軌道及地面基站位置)利用圓形軌道LEO衛星的可預測多普勒特徵，提出新型的通訊演算法。藉由所提出的演算法的估計，可以隨衛星位置的移動，持續進行載波頻率偏移(CFO)的估計值更新，藉此可降低系統複雜度，並執行載波間干擾消除，更進一步提高帶寬效率，以達到改善衛星通訊嚴重的多普勒偏移之問題，進而使低地球軌道衛星衛星傳輸可以更有效利用。

摘要(英)

This paper discusses the use of H_∞filters for frequency offset estimation in LEO (low earth orbit) satellite systems. Due to the high relative speed between the mobile terminal and the satellite, the LEO satellite communication signal will suffer severe Doppler shift. This paper proposes an adaptive communication algorithm based on OFDM-based LEO satellite transmission to improve the Doppler frequency offset. This paper refers to the H_∞ filter combined with geographic space location (satellite orbit and ground base station location), and using the predictable Doppler characteristics of LEO satellites in circular orbits to propose an adaptive communication algorithm based on OFDM for LEO satellite transmission to improve Doppler frequency offset. With the estimation of the proposed algorithm, the estimated value of CFO (carrier frequency offset) can be continuously updated with the movement of the satellite position. This can reduce system complexity, perform inter-carrier interference cancellation, and further improve bandwidth efficiency, so as to improve the serious Doppler shift problem of satellite communication, and thereby enable the LEO satellite transmission of OFDM to be more effectively used.

關鍵字(中)

★ 低地球軌道衛星
★ 多普勒偏移
★ 載波頻率偏移
★ 正交分頻多工
★ H_∞濾波器

關鍵字(英)

★ low earth orbit (LEO) satellite systems
★ Doppler frequency offset
★ carrier frequency offset (CFO)
★ Orthogonal frequency-division multiplexing(OFDM)
★ H-infinity filters

論文目次

1. Introduction…………………………………………….…1
2. OFDM System Model……………………….……………..7
2.1 Transmitter ………………………………………….8
2.2 Wireless Channel……………………………………9
2.3 Receiver……………………………………………..9
3. State space model…………………………………………11
3.1 State space model in each OFDM frame
3.2 State space model in different OFDM frame
4. Maximum Likelihood Carrier Frequency Estimation……14
5. CFO in satellite communication........................................16
6. H_∞ Filter Design……………………………………….19
6.1 Introduction of H_∞ filter theory…………………..20
6.2 Game Theory………………………………………21
6.3 Game Theory Approach to H_∞ Filter Design……22
7. Proposed New Algorithm Scheme………………….........23
7.1 CFO estimation based on doppler characterization24
7.2 Mathematical Derivation of H_∞ for adaptive CFO estimation …………………………………………27
7.3 Initial CFO and Channel Estimation……………...33
7.4 H_∞ filter for adaptive CFO estimation…………....36
7.5 Final Channel Estimation………………………….38
7.6 CFO estimation in adjacent OFDM frame………...38
7.7 Procedures of proposal…………………………….39
8. Simulation Results………………………………………43
8.1 The Doppler characterization curve………………44
8.2 The proposed H_∞ filter performance…………….45
8.3 The performance of the proposed algorithm in adjacent OFDM frame……………………….…….53
8.4 The performance of the proposed algorithm at different satellite positions…………………………54
8.5 The performance of the proposed algorithm……...…57
9. Conclusion……………………………………………….58
Reference
Appendix

參考文獻

[1] G. Maral and M. Bousquet, Satellite Communications systems: Systems, Techniques and Technology (5th Edtion). John Wiely and Sons, 2009.
[2] T. De Cola, D. Tarchi and A. Vanelli-Coralli, “Future trends in broadband satellite communications information centric networks and enabling technologies,”Int. J. Satell. Commun. Network., vol. 33, no. 5, pp. 473-490,2015.
[3] T. Ikegami, T. Higuchi and R. Suzuki, "A study of user link for CDMA global multimedia low Earth orbit satellite system," The 5th International Symposium on Wireless Personal Multimedia Communications, 2002, pp. 484-488 vol.2
[4] M. Casoni, C. A. Grazia, M. Klapez, et al., “Integration of Satellite and LTE for Disaster Recovery,” IEEE Commun. Mag., vol. 53, no. 3, pp. 47-53, 2015.
[5] Y. Seyedi and S. M. Safavi, “On the Analysis of Random Coverage Time in Mobile LEO Satellite Communications,” IEEE Commun. Lett., vol.16, no. 5, pp. 612-615, 2012.
[6] L. Siyang, Q. Fei, G. Zhen, Z. Yuan, and H. Yizhou, “Lte satellite:Chinese proposal for satellite component of imt-advanced system,”Communications, China, vol. 10, no. 10, pp. 47–64, Oct. 2013.
[7] F. Bastia, C. Bersani, E. Candreva, S. Cioni, G. Corazza, M. Neri, C.Palestini, M. Papaleo, S. Rosati, and A. Vanelli-Coralli, “Lte adaptation for mobile broadband satellite networks,” EURASIP Journal on Wireless Communications and Networking, vol. 2009, no. 989062, pp. 1–13, Jul. 2009
[8] J. Lee, H. Lou, D. Toumpakaris, and J. M. Cioffi, “Effect of carrier frequency offset on OFDM systems for multipath fading channels,” IEEE Global Telecommun. Conf., vol.6, pp.3721-3725, Nov. 2004.
[9] X. Ma, C. Tepedelenlioglu, G. B. Giannakis, and S. Barbarossa, ‘‘Non data-aided carrier offset estimation for OFDM with null subcarriers:identifiability, algorithms, and performance," IEEE Jour. Select. Areas Commun., vol. 19, no. 12, pp. 2504-2515, Dec. 2001.
[10] M. Ghogho and A. Swami, “Blind frequency-offset estimator for OFDM systems transmitting constant-modulus symbols," IEEE Commun. Lett., vol.6, no.8, pp. 343-345, Aug. 2002.
[11] Y. Yao and G. Giannakis, “Blind carrier frequency offset estimation in SISO, MIMO, and multiuser OFDM systems," IEEE Trans. Commun., vol. 53, no. 1, pp. 173-183, Jan. 2005.
[12] X. Liu, K. Pan, Y. Zuo and J. Chen, "Blind Symbol Synchronization for OFDM Systems in Multipath Fading Channels," 2010 6th International Conference on Wireless Communications Networking and Mobile Computing (WiCOM), Chengdu, 2010, pp. 1-4,
[13] H.-C.Wu, X. Huang, and D. Xu, “Pilot-free dynamic phase and amplitude estimations for wireless ICI self-cancellation coded OFDM systems,” IEEE Trans. Broadcast., vol. 51, no. 1, pp. 105-394, Mar. 2005.
[14] H.-C.Wu, “Analysis and characterization of intercarrier and interblock interferences for wireless mobile OFDM systems,” IEEE Trans. Broadcast., vol. 52, no. 2, pp. 203-210, Jun. 2006.
[15] X. Huang and H.-C.Wu, “Robust and efficient intercarrier interference mitigation for OFDM systems in time-varying fading channels,” IEEE Trans. Veh. Technol., vol. 56, no. 5, pp. 2517-2528, Sept. 2007.
[16] H.-C. Wu, X. Huang, Y. Wu, and X. Wang, “Theoretical studies and efficient algorithm of semi-blind ICI equalization for OFDM,” IEEE Trans. Wireless Commun., vol. 7, no. 10, pp. 3791-3798, Oct. 2008.
[17] S. Chiu, K. Fu and Y. Chen, "A modified algorithm for joint frequency offset and channel estimation in OFDM systems," 2013 IEEE/CIC International Conference on Communications in China (ICCC), 2013, pp. 327-332.
[18] B. Xia, Y. Wang and G. Yang, "Data-Aided Carrier Frequency Offset Estimation for Orthogonal Frequency Division Multiplexing Communication Systems," 2019 IEEE 5th International Conference on Computer and Communications (ICCC), 2019, pp. 848-852
[19] Feifei Gao and A. Nallanathan, "Identifiability of data-aided carrier-frequency offset estimation over frequency selective channels," in IEEE Transactions on Signal Processing, vol. 54, no. 9, pp. 3653-3657, Sept. 2006
[20] G. Yang, H. Chen, S. Hu, G. Wu and S. Li, "Data-aided joint symbol timing and CFO estimation for OFDM/OQAM systems," 2011 8th International Conference on Information, Communications & Signal Processing, 2011
[21] A. Laourine, A. Stephenne and S. Affes, "A New Data-Aided Carrier Frequency Offset Estimation Algorithm for OFDM Systems," 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, 2006
[22] M. Katayama, A. Ogawa and N. Morinaga, "Carrier synchronization under Doppler shift of the nongeostationary satellite communication systems," [Proceedings] Singapore ICCS/ISITA `92, 1992, pp. 466-470 vol.2
[23] E. Vilar and J. Austin, "Analysis and correction techniques of Doppler shift for nongeosynchronous communication satellites", Int. J. Satellite Commun., vol. 9, pp. 123-136, 1991.
[24] I. Ali, N. Al-Dhahir and J. E. Hershey, "Doppler characterization for LEO satellites," in IEEE Transactions on Communications, vol. 46, no. 3, pp. 309-313, March 1998
[25] S. B. Senevirathna et al., "Carrier Frequency Offset Estimation for OFDM System using Extended Kalman Filter," 2008 4th International Conference on Information and Automation for Sustainability, 2008, pp. 351-354
[26] Pham Hong Lien, Nguyen Duc Quang and Luu Thanh Tra, "Extended Kalman Filter for channel and carrier frequency offset estimation," 2017 International Conference on System Science and Engineering (ICSSE), 2017, pp. 61-65
[27] M. Ashour, A. El-Keyi and A. Sultan, "Low-complexity Kalman filter-based carrier frequency offset estimation and tracking for OFDM systems," 2013 IEEE International Conference on Acoustics, Speech and Signal Processing, 2013, pp. 4923-4927
[28] H. Hijazi, A. Dakhlallah, S. Al Hajj, A. C. Al Ghouwayel and A. Dhayni, "Joint CFO and time-varying channel estimation by particle filtering in OFDM systems," 2013 Third International Conference on Communications and Information Technology (ICCIT), 2013, pp. 241-245
[29] Y. Jing, F. Yin and Z. Chen, "An HαFilter Based Approach to Combat Inter-Carrier Interference for OFDM Systems," in IEEE Communications Letters, vol. 12, no. 6, pp. 453-455
[30] I. Yaesh and U. Shaked, "Game theory approach to optimal linear estimation in the minimum H/sup infinity /-norm sense," Proceedings of the 28th IEEE Conference on Decision and Control, 1989, pp. 421-425 vol.1
[31] X. . -M. Shen and L. Deng, "Game theory approach to discrete H∞ filter design," in IEEE Transactions on Signal Processing, vol. 45, no. 4, pp. 1092-1095, April 1997
[32] M. You, S. Lee, and Y. Han, “Adaptive Compensation Method Using the Prediction Algorithm for the Doppler Frequency Shift in the LEO Mobile Satellite Communication System,” ETRI Journal, vol. 22, no.4, pp. 32-39, 2000.
[33] J. Lin, Z. Hou, Y. Zhou, L. Tian and J. Shi, "Map Estimation Based on Doppler Characterization in Broadband and Mobile LEO Satellite Communications," 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016, pp. 1-5
[34] T. M. Schmidl and D. C Cox, "Robust frequency and timing synchronization for OFDM," IEEE Trans. Commun., vol. 45, no. 12, pp. 1613-1621, Dec. 1997.
[35] M. Morelli, A. N. D′Andrea, and U. Mengali, "Frequency ambiguity resolution in OFDM systems," IEEE Commun. Lett., vol. 4, pp. 134-136, Apr. 2000.
[36] D. Toumpakaris, J. Lee, and H.-L. Lou, "Estimation of integer carrier frequency offset in OFDM systems based on the maximum likelihood principle," IEEE Trans. Broadcast., vol. 55, no. 1, pp. 95-108, Mar. 2009.
[37] Y. H. Kim, I. Song, S. Yoon, and S. Park, "An efficient frequency offset estimator for OFDM systems and its performance characteristics," IEEE Trans. Veh. Technol., vol. 50, no. 5, pp. 1307-1312, Sep. 2001.
[38] Z. Liu, B. Weng, and Q. Zhu, "Frequency offset estimation for differential OFDM," IEEE Trans. Wireless Commun., vol. 4, no. 4, pp. 1737-1748, Jul. 2005.
[39] E.-S. Shim and Y.-H. You, "OFDM integer frequency offset estimator in rapidly time-varying channels," In Proc. of Asia-Pacific Conf on Commun., Aug. 2006, pp. 1-4.
[40] H. Abdzadeh-Ziabari and M. G. Shayesteh, "Integer frequency offset recovery in OFDM systems," 2012 18th Asia-Pacific Conference on Communications (APCC), 2012, pp. 641-646

指導教授

陳永芳(Yung-Fang Chen)

審核日期

2021-8-24

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