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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 闕志達(Tzi-Dar Chiueh) | |
| dc.contributor.author | Tsung-Han Yu | en |
| dc.contributor.author | 游宗翰 | zh_TW |
| dc.date.accessioned | 2021-06-13T00:06:59Z | - |
| dc.date.available | 2011-07-30 | |
| dc.date.copyright | 2007-07-30 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-29 | |
| dc.identifier.citation | [1] Y.J. Chen, “Baseband Transceiver Design for DVB-Terrestrial Standard,” Master Thesis, Graduate of Institute Electronics Engineering, National Taiwan University, Taipei, Taiwan, Jun. 2004.
[2] K.S.Lin, “Design of a Baseband Receiver for DVB-T Standard,” Master Thesis, Graduate of Institute Electronics Engineering, National Taiwan University, Taipei, Taiwan, Jun. 2005. [3] “Digital Video Broadcasting (DVB); Framing Structure, Channel Coding and Modulation for Digital Terrestrial Television,” ETSI EN 300 744 v1.5.1, Nov. 2004. [4] “Digital Video Broadcasting (DVB); Implementation Guidelines for DVB Terrestrial Services; Transmission Aspects,” ETSI TR 101 190 v1.2.1, Nov. 2004. [5] P. Dent, G. E. Bottomley, and T. Croft, “Jakes Fading Model Revisited,” IEEE Electron. Lett., Jun. 1993. [6] S. Sampei and T. Sunaga, “Rayleigh fading compensation for QAM in land mobile radio communications,” IEEE Trans. Veh. Technol., May 1993. [7] I. W. Lai and T. D. Chiueh, “One-Dimensional Interpolation Based Channel Estimation for Mobile DVB-H Reception,” in Proc. IEEE Int. Symposium on Circuit and System, ISCAS06, May 2006 [8] S. G. Kang, Y. M. Ha, and E. K. Joo, “A comparative investigation on channel estimation algorithms for OFDM in mobile communications,” IEEE Trans. Braodcast., Jun, 2003. [9] X. Hou, C. Yin, and G. Yue, “Two-Dimensional Recursive Least Square Adaptive Channel Estimation for OFDM Systems,” in Proc. IEEE Int. Conf. on Wireless Network Communication and Mobile Computing, 2005. [10] T.-S. Yang, A. Duel-Hallen, and H. Hallen, “Enabling adaptive OFDM for mobile radio channels,” in Proc. IEEE Int. Conf. on MILCOM, Nov. 2004. [11] G. Dona, and W. A. Krzymien, “MMSE Channel Estimation Using Two-Dimensional Filtering in Rapid Time-Variant Environments,” in Proc. IEEE Int. Conf. on Vehicular Technology Conference, VTC2005-Spring, Sept. 2005 [12] Y. Mostofi and D. C. Cox, “ICI mitigation for pilot-aided OFDM mobile systems,” IEEE Transaction on Wireless Communications, Mar. 2005. [13] V. Fischer, A. Kurpiers and D. Karsunkc, “ICI Reduction Method for OFDM Systems,” 8th International OFDM-Workshop 2003, Sept. 2003. [14] W. G. Jeon, K. H. Chang, and Y. S. Cho, “An equalization technique for orthogonal frequency-division multiplexing system in time-variant multipath channels,” IEEE Transaction on Communications, Jan. 1999. [15] C.-Y. Hsu and W.-R. Wu, “A Low-complexity ICI mitigation Method for High-speed Mobile OFMS Systems,” in Proc. IEEE Int. Symposium on Circuit and System, ISCAS06, May 2006. [16] Jian Fu, Chang-Yong Pan, Zhi-Xing Yang, and Lin Yang, “Low-Complexity Equalization for TDS-OFDM Systems Over Doubly Selective Channels”, IEEE Transactions on Broadcasting, Sep 2005. [17] P. Y. Tsai and T. D. Chiueh, “Frequency-Domain Interpolation-Based Channel Estimation in Pilot-Aided OFDM Systems,” IEEE VTC, May 2004. [18] S. H. Chen, W. H. He, H. S. Chen, and Y. M. Lee, “Mode Detection, Synchronization, and Channel Estimation for DVB-T OFDM Receiver,” Global Telecommunications Conference, Dec. 2003. [19] P. Y. Tsai, H. Y. Kang, and T. D. Chiueh, “Joint Weighted Least Squares Estimation of Frequency and Timing Offset for OFDM Systems over Fading Channels,” in Proc. of 2003 IEEE VTC, Apr. 2003. [20] J. S. Wu, M. L. Liou, H. P. Ma, and T. D. Chiueh, “A 2.6-V, 44-MHz All-Digital QPSK Direct-Sequence Spread Spectrum Transceiver IC,” IEEE JSSC, Oct. 1997 [21] L. Erup, F. M. Gardner, and R. A. Harris, “Interpolation in Digital Modems-Part II: Implementation and Performance,” IEEE Transaction on Communications, Jun. 1993. [22] L. Schwoerer and J. Vesma, “Fast Pilot Synchronization for DVB-T and DVB-H,” Proc. 8th international OFDM-Workshop, Sep. 2003. [23] L. Schwoerer, “Fast Pilot Synchronization Schemes for DVB-H,” IASTED, July 2004. [24] F. Tosato and P. Bisaglia, “Simplified Soft-Output Demapper for Binary Interleaved COFDM with Application to HIPERLAN/2,” IEEE ICC, Apr. 2002. [25] S. He and M. Torkelson, “A New Approach to Pipeline FFT Processor,” in Proc. of IPPS’96, Apr. 1996. [26] L. Jia, Y. Gao, J. Isoaho, and Tenhunen, “A New VLSI-Oriented FFT Algorithm and Implementation,” in Proc. of ASIC Conference, Sep. 1998. [27] Y.T. Lin, “Design and Implementation of a Variable-Length FFT Processor for OFDM Systems,” Master Thesis, Graduate of Institute Electrical Engineering, National Taiwan University, Taipei, Taiwan, Jun. 2001. [28] P. Y. Tsai, “Design and Implementation of a MC-CDMA Baseband Transceiver for Next-Generation Mobile Communication Systems,” Ph.D. Thesis, NTU, 2005. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/28391 | - |
| dc.description.abstract | 本論文探討歐規數位電視地面/手持廣播系統(DVB-T/H)之特色與規格。此外，基頻通道模型在本論文中也予以討論，其中通道效應包含多路徑衰減通道(Multipath Fading Effect)、加成性白色高斯雜訊(AWGN)、載波頻率漂移(Carrier Frequency Offset)、取樣時脈漂移(Sampling Clock Offset)、以及相位雜訊(Phase Noise)。根據此規格以及通道模型，本論文提出一基頻接收機，包含各模組之演算法，電路設計，以及硬體實做。為了支援移動接收之機能，本論文提出一通道估測及補償之演算法，並結合一兩階段模式偵測、符元時間偵測、載波頻率漂移與取樣時脈漂移之估測、補償及追蹤、2/4/8K FFT處理器、相位調整、軟性輸出解映射器及軟性輸入維特比解碼器。此外，為了降低系統之複雜度，於模式增測及整數載波頻率漂移之估測等處予以硬體簡化。為了解調傳輸參數訊號，一BCH解碼器也於本論文提出及設計。透過輸出訊噪比(Output SNR)取代位元錯誤率(BER)來做為決定最佳位元數之指標，進行全系統之定點數模擬。最後經由全系統之效能模擬及全系統之Verilog RTL程式之實做與驗證，證明本論文所提出之DVB-T/H基頻接收機之良好效能。 | zh_TW |
| dc.description.abstract | In this thesis, the features and specification of Europe DVB-T/H standard have been delineated. Besides, a baseband channel model has been discussed, including multipath fading effect, AWGN, CFO effect, SCO effect, and phase noise. Based on the standard and a baseband equivalent channel model, a baseband receiver is proposed, including algorithms, circuit design and Verilog RTL code implementation. To support mobile reception, this thesis proposes the channel estimation and equalization algorithm and combines algorithms of a two-stage mode detection, symbol timing detection, CFO as well as SCO estimation and compensation, 2/4/8K FFT processor, phase modification soft-output de-mapper and soft-input Viterbi decoder. In addition, to reduce the hardware complexity, the GI mode detection module and integer CFO module have been modified; to decode the TPS signal, a BCH decoder is designed and implemented as well. Through output SNR instead of bit error rate (BER) as the metric of the word-length determination, the optimal word-length can be obtained. By means of system performance simulation and verification of whole Verilog RTL code, the proposed DVB-T/H baseband receiver is proven to work well. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T00:06:59Z (GMT). No. of bitstreams: 1 ntu-96-R94943028-1.pdf: 7840375 bytes, checksum: 36ce14c0e91a5069cacd668e05c5cec2 (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | Contents i
List of Figures iv List of Tables vii 1 Introduction 1 1.1 Motivation of Thesis 1 1.2 Introduction of Digital Video Broadcasting 3 1.2.1 Comparison of DVB-S, DVB-C, DVB-T, and DVB-H 4 1.3 Comparison of Various Existing Mobile Digital TV Standards 5 1.4 Organization of Thesis 7 2 Principle of OFDM and DVB-T/H 9 2.1 Introduction 9 2.2 Principle of OFDM 9 2.3 DVB-T/H Standard 17 2.3.1 Hierarchy Information 19 2.3.2 OFDM Frame Structure 21 3 Baseband Channel Model 27 3.1 Introduction 27 3.2 Wireless Channel 28 3.2.1 Multipath Fading Channel 28 3.2.1.1 Static Channel Model 28 3.2.1.2 Dynamic Channel Model 30 3.2.2 Additive White Gaussian Noise 32 3.3 Receiver Impairment 33 3.3.1 Carrier Frequency Offset 33 3.3.2 Sampling Clock Offset 34 3.3.3 Phase Noise 35 4 Low-Complexity Channel Estimation and Equalization for Mobile DVB-T/H System 37 4.1 Introduction 37 4.2 Derivation of ICI Response 38 4.3 Channel Estimation 40 4.3.1 2D-RLS Time Domain Interpolation 40 4.3.1.1 Shift Invariant Property 41 4.3.1.2 SISA 2D-RLS Interpolator 43 4.3.1.3 Computation Reduction 48 4.3.2 Frequency Domain Interpolation 54 4.4 ICI Response Approximation 56 4.5 ICI Mitigation 58 4.5.1 Zero-Forcing ICI Equalization 58 4.5.2 Parallel ICI Cancellation 65 4.6 Simulation Result 67 5 DVB-T/H System Design 75 5.1 Introduction 75 5.2 Transmitter Architecture 76 5.2.1 Block Diagram 76 5.2.2 Inner Coder 77 5.2.3 Inner Interleaver 79 5.2.4 Constellation Mapping 81 5.2.5 Frame adaptation 84 5.3 Receiver Architecture 85 5.3.1 Block Diagram 85 5.3.2 Mode Detection 86 5.3.2.1 FFT Mode Detection 87 5.3.2.2 GI Mode Detection 90 5.3.3 Symbol Timing Detection 93 5.3.4 CFO Estimation 97 5.3.4.1 Fractional CFO Estimation 98 5.3.4.2 Integer CFO Estimation 99 5.3.5 Joint WLS Estimation 102 5.3.6 Carrier Recovery Loop 104 5.3.6.1 Loop Filter 104 5.3.6.2 CFO Compensation 105 5.3.6.3 SCO Compensation 105 5.3.7 Phase Modification 107 5.3.8 Scattered Pilot Detection 108 5.3.9 Channel Estimation 110 5.3.10 ICI Mitigation 111 5.3.11 TPS Demodulation 112 5.3.11.1 TPS Demodulation 112 5.3.11.2 BCH Decoder 113 5.3.12 De-mapper 115 5.3.13 Outer Receiver 118 5.4 System Simulation 119 6 Hardware Implementation 125 6.1 Introduction 125 6.2 Fix Point Simulation 125 6.3 Circuit Design 131 6.3.1 CORDIC 131 6.3.2 Piecewise Linear Approximation 133 6.3.3 Mode Detection 134 6.3.4 Symbol Timing Detection and Fractional CFO Estimation 136 6.3.5 Integer CFO Estimation 138 6.3.6 FFT Module 139 6.3.7 Joint WLS Estimation 140 6.3.8 Carrier Recovery Loop 140 6.3.9 Phase Modification 142 6.3.10 Scatter Pilot Detection 143 6.3.11 Channel Estimation 144 6.3.12 ICI Mitigation 146 6.3.13 TPS Demodulation 147 6.3.14 Resource Sharing 153 6.3.15 Gated Clock 155 6.3.16 Saving in Complexity 157 6.4 Simulation Result 158 7 Conclusion 165 Reference 167 | |
| dc.language.iso | zh-TW | |
| dc.subject | 基頻接收機 | zh_TW |
| dc.subject | 數位電視 | zh_TW |
| dc.subject | DVB-H | en |
| dc.subject | DVB-T | en |
| dc.title | 歐規數位電視地面/手持廣播基頻接收機之設計與實作 | zh_TW |
| dc.title | Design and Implementation of a Baseband Receiver for DVB-T/H Standard | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蔡佩芸(Pei-Yun Tsai),曹恆偉(Hen-Wai Tsao) | |
| dc.subject.keyword | 數位電視,基頻接收機, | zh_TW |
| dc.subject.keyword | DVB-T,DVB-H, | en |
| dc.relation.page | 170 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-07-30 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
| 顯示於系所單位： | 電子工程學研究所 | |
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