請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/50555完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 馮世邁(See-May Phoong) | |
| dc.contributor.author | Shu-Yu Chen | en |
| dc.contributor.author | 陳書毓 | zh_TW |
| dc.date.accessioned | 2021-06-15T12:45:57Z | - |
| dc.date.available | 2016-08-03 | |
| dc.date.copyright | 2016-08-03 | |
| dc.date.issued | 2016 | |
| dc.date.submitted | 2016-07-25 | |
| dc.identifier.citation | [1] European Telecommunication Standards Institude, 'Digital audio broadcasting (DAB) to mobile protable and fixed receiverd,' EST 300 401, 1994.
[2] European Telecommunication Standards Institude, 'Digital vedio broadcasting; framing, structure, channel coding and modulation for digital terrestrial television (DVB-T),' EST 300 744, 1997. [3] L. Der and B. Razavi, 'A 2-GHz CMOS image-reject receiver with LMS calibration,' IEEE J. Solid-State Circuits, vol. 38, no. 2, pp. 167-175, February 2003. [4] Z. Pengfei, N. Thai, C. Lam, D. Gambetta, C. Soorapanth, C. Baohong, S. Hart, I. Sever, T. Bourdi, A. Tham, and B. Razavi, 'A direct conversion CMOS transceiver for IEEE 802.11a WLANs,' in IEEE Int. Solid-State Circuits Conf. Dig Technical papers, February 2003. [5] J. Chen, Y.-C. Wu, S. Ma, and T-S. Ng, 'ML Joint CFO and Channel Estimation in OFDM Systems with Timing Ambiguity,' IEEE Trans. on Wireless Communications, vol.7, no.7, pp.2436-2440, Jul. 2008 [6] K. Cai, X. Li, J. Du, Y.-C. Wu, and F. Gao, 'CFO Estimation in OFDM Systems under Timing and Channel Length Uncertainties with Model Averaging,' IEEE Trans. on Wireless Communications, vol.9, no.3, pp.970-974, Mar. 2010 [7] T. Roman, S. Visuri, and V. Koivunen, 'Blind Frequency Synchronization in OFDM via Diagonality Criterion,' IEEE Trans. on Signal Processing, vol.54, no.8, pp.3125-3135, Aug. 2006 [8] Y. Yao and G.B. 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 [9] X. Zeng and A. Ghrayeb, 'A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling,' IEEE Trans. Commun., vol.56, no.7, pp.1032-1037, July 2008 [10] W. Xu and Z. Hong, 'Blind CFO Estimation for Constant Modulus Signaling Based OFDM Systems,' IEEE Int. Conf. Communications, pp.1-5, May 2010 [11] X. Zhang, X. Gao, and D. Xu, 'Novel Blind Carrier Frequency Offset Estimation for OFDM System with Multiple Antennas,' IEEE Trans. on Wireless Communications, pp.881-885, Mar. 2010 [12] G. Xu, H. Liu, L. Tong, and T. Kailath, 'A Least-Squares Approach to Blind Channel Identi cation,' IEEE Transactions on Signal Processing, vol. 43, no.12, Dec. 1995. [13] W. Zhang, Q. Yin, and W. Wang, 'Blind Closed-Form Carrier Frequency Offset Estimation for OFDM With Multi-Antenna Receiver,' IEEE Transactions on Vehicular Technology, vol. 64, no.8, Aug. 2015. [14] W. Zhang, Q. Yin, W. Wang, and F. Gao, 'One-Shot Blind CFO and Channel Estimation for OFDM With Multi-Antenna Receiver,' IEEE Transactions on Signal Processing, vol. 62, no.15, Aug. 2014. [15] B. Razavi, RF Microelectronics. Englewood Cli s, NJ: Prentice-Hall, 1998. [16] C.-L. Liu, 'Impacts of I/Q imbalance on QPSK-OFDM-QAM Detection,' IEEE Transactions on Consumer Electronics, vol.44, no.3, pp.984-989, Aug. 1998 [17] M. Valkama, M. Renfors, and V. Koivunen, 'Compensation of Frequency-Selective I/Q Imbalances in Wideband Receivers: Models and Algorithms,' IEEE Third Workshop on Signal Processing Advances in Wireless Communications (SPAWC), pp.42-45, 2001 [18] F. Yan, W.-P. Zhu, and M. Omair Ahmad, 'Carrier Frequency Offset Estimation and I/Q Imbalance Compensation for OFDM Systems,' EURASIP Journal on Advances in Signal Processing, Vol. 2007, Article ID 45364 [19] L. Anttila, M. Valkama, and M. Renfors, 'Circularity-Based I/Q Imbalance Compensation in Wideband Direct-Conversion Receivers,' IEEE Transactions on Vehicular Technology, vol.57, no.4, pp.2099-2113, July 2008 [20] H. Lin, X. Zhu, and K. Yamashita, 'Low-Complexity Pilot-Aided Compensation for Carrier Frequency Offset and I/Q Imbalance,' IEEE Transactions on Communications, vol.58, no.2, Feb. 2010 [21] D. Tandur and M. Moonen, 'Joint Compensation of OFDM Frequency Selective Transmitter and Receiver IQ Imbalance,' IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), vol.3, pp.III-81-III-84, 15-20, April 2007 [22] D. Tandur, C-.Y. Lee, and M. Moonen, 'Efficient Compensation of RF Impairments for OFDM Systems,' IEEE Wireless Communications and Networking Conference (WCNC), pp.1-6, 5-8 April 2009 [23] G. Xing, M. Shen, and H. Liu, 'Frequency Offset and I/Q Imbalance Compensation for Direct-Conversion Receivers,' IEEE Transactions on Wireless Communications, vol.4, no.2, pp. 673-680, March 2005 [24] L. Lanante Jr., M. Kurosaki, and H. Ochi, 'Low Complexity Compensation of Frequency Dependent I/Q Imbalance and CFO for Direct Conversion Receivers,' Circuits and Systems (ISCAS), June 2010. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/50555 | - |
| dc.description.abstract | 近日由於成本上的優勢，直接轉換射頻接收器變得流行，然而使用直接轉換射頻接收器的正交分頻多工系統對接收器的前端的非理想效應非常敏感，例如：載波頻率位移和實虛部非協調，非理想效應會造成載波間干擾，在正交分頻多工系統仍需估計通道響應，所以準確的估計非理想效應參數及通道響應非常重要，故這篇論文是在單輸入多輸出的正交分頻多工系統中估計載波頻率位移、實虛部非協調和通道響應，包含三種盲估測方法。第一個方法是最小平方法，原先由許等人提出估計通道響應的方法延伸使之可以估計實虛部非協調參數。第二個方法是閉型方法，由張等人所提出的估計載波頻率位移參數的方法，將此延伸可以同時估計載波頻率位移和實虛部非協調參數。第三個方法是所謂的一步法可同時估計載波頻率位移和通道響應，我們將之延伸使得可同時估計載波頻率位移、實虛部非協調和通道響應。此論文提供數值模擬以驗證該方法的性能。 | zh_TW |
| dc.description.abstract | Nowadays, direct-conversion radio frequency (RF) receivers become more appealing due to its cost advantage. However, orthogonal frequency division multiplexing (OFDM) systems with direct-conversion RF receivers are very sensitive to non-idealities at the front-end of receiver, such as carrier frequency offset (CFO) and inphase/quadrature-phase (I/Q) imbalance. These non-idealities at the receiver result in inter-carrier interference (ICI). Accurate estimates of the non-idealities and channel response are required in OFDM systems. This thesis studies CFO, I/Q imbalance, and channel estimation for OFDM systems with multiple transmit antennas. The thesis consists of three different blind estimation methods. The first one is least-square method. However, the original least-square method proposed by Xu etal. can only estimate channels. We improve it and make it able to estimate both I/Q imbalance and channels. The second one is a closed-form method for CFO estimation proposed by Zhang etal. In this thesis, we extend the closed-from method for joint CFO and I/Q imbalance estimation. The third one is the so-called one-shot method for CFO and channel estimation. We extend this method for joint CFO, I/Q imbalance, channel estimation. In this thesis numerical simulations are also provided to verify the performances of the proposed methods. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T12:45:57Z (GMT). No. of bitstreams: 1 ntu-105-R03942074-1.pdf: 1076731 bytes, checksum: 8301b6c9e306b1191d310a022c3783ad (MD5) Previous issue date: 2016 | en |
| dc.description.tableofcontents | Abstract ix
Acknowledgements xi 1 Introduction 1 2 Carrier Frequency Offset and I/Q imbalance in OFDM Systems 5 2.1 Introduction to OFDM Systems . . . . . . . . . . . . . . . . . . . . . 6 2.2 The Phenomenon of Carrier Frequency Offset (CFO) and I/Q Imbalance 10 2.2.1 Carrier Frequency Offset (CFO) . . . . . . . . . . . . . . . . . 11 2.2.2 I/Q Imbalance . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.3 CFO and I/Q Imbalance on the Received Baseband Signal Model . . 12 2.3.1 CFO on the Received Baseband Signal . . . . . . . . . . . . . 12 2.3.2 Joint CFO and Frequency-Independent I/Q Imbalance (FI-IQ) 13 2.3.3 Joint CFO and Frequency-Dependent I/Q Imbalance (FD-IQ) 14 2.4 Compensation of CFO and I/Q Imbalance . . . . . . . . . . . . . . . 15 2.5 Simulation Results and Comparisons . . . . . . . . . . . . . . . . . . 19 2.6 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3 Least-Square Blind I/Q Imbalance Estimation 25 3.1 Review of Least-Square Blind Channel Estimation Approach . . . . . 26 3.2 Proposed Blind Estimation for FI-IQ . . . . . . . . . . . . . . . . . . 28 3.3 Simulation Results and Comparisons . . . . . . . . . . . . . . . . . . 31 3.4 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4 Closed-Form Blind CFO and I/Q Imbalance Estimation 35 4.1 Review of Closed-Form Blind CFO Estimation Approach . . . . . . . 36 4.2 Proposed Blind Estimation for FI-IQ . . . . . . . . . . . . . . . . . . 40 4.3 Proposed Blind Joint Estimation for CFO and FI-IQ . . . . . . . . . 41 4.4 Degenerated Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.5 Simulation Results and Comparisons . . . . . . . . . . . . . . . . . . 43 4.6 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 5 One-Shot Blind CFO and I/Q Imbalance Estimation 49 5.1 Review of One-Shot Blind Joint CFO and Channel Estimation Approach 50 5.2 Proposed Blind Estimation for FI-IQ . . . . . . . . . . . . . . . . . . 52 5.3 Proposed Blind Joint Estimation for CFO and FI-IQ . . . . . . . . . 53 5.4 Simulation Results and Comparisons . . . . . . . . . . . . . . . . . . 55 5.5 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 6 Extension to FD-IQ and Comparisons 61 6.1 Blind Estimation for Frequency-Dependent I/Q Imbalance . . . . . . 62 6.1.1 FD-IQ for Least-Square Method . . . . . . . . . . . . . . . . . 63 6.1.2 FD-IQ for Closed-Form Method . . . . . . . . . . . . . . . . . 63 6.1.3 FD-IQ for One-Shot Method . . . . . . . . . . . . . . . . . . . 64 6.2 Simulation Results and Comparisons . . . . . . . . . . . . . . . . . . 65 6.3 Concluding Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 7 Conclusions 71 Bibliography 73 | |
| dc.language.iso | en | |
| dc.subject | 正交分頻多工系統 | zh_TW |
| dc.subject | 盲估測 | zh_TW |
| dc.subject | 實虛部非協調 | zh_TW |
| dc.subject | 載波頻率位移 | zh_TW |
| dc.subject | 正交分頻多工系統 | zh_TW |
| dc.subject | 盲估測 | zh_TW |
| dc.subject | 實虛部非協調 | zh_TW |
| dc.subject | 載波頻率位移 | zh_TW |
| dc.subject | orthogonal frequency division multiplexing(OFDM) | en |
| dc.subject | carrier frequency offset(CFO) | en |
| dc.subject | I/Q imbalance | en |
| dc.subject | blind estimation | en |
| dc.subject | multi-antenna | en |
| dc.subject | orthogonal frequency division multiplexing(OFDM) | en |
| dc.subject | carrier frequency offset(CFO) | en |
| dc.subject | I/Q imbalance | en |
| dc.subject | blind estimation | en |
| dc.subject | multi-antenna | en |
| dc.title | 單輸入多輸出之正交分頻多工系統中載波頻率位移與實虛部非協調之盲估測 | zh_TW |
| dc.title | Blind Estimation of Carrier Frequency Offset and I/Q Imbalance for SIMO OFDM Systems | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 104-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蘇炫榮(Hsuan-Jung Su),蘇柏青(Bor-Ching Su) | |
| dc.subject.keyword | 載波頻率位移,實虛部非協調,盲估測,正交分頻多工系統, | zh_TW |
| dc.subject.keyword | carrier frequency offset(CFO),I/Q imbalance,blind estimation,multi-antenna,orthogonal frequency division multiplexing(OFDM), | en |
| dc.relation.page | 75 | |
| dc.identifier.doi | 10.6342/NTU201601243 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2016-07-25 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
| 顯示於系所單位： | 電信工程學研究所 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-105-1.pdf 未授權公開取用 | 1.05 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。