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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 周錫增 | zh_TW |
| dc.contributor.advisor | Hsi-Tseng Chou | en |
| dc.contributor.author | 賴士維 | zh_TW |
| dc.contributor.author | Shih-Wei Lai | en |
| dc.date.accessioned | 2025-09-24T16:39:51Z | - |
| dc.date.available | 2025-09-25 | - |
| dc.date.copyright | 2025-09-24 | - |
| dc.date.issued | 2025 | - |
| dc.date.submitted | 2025-08-06 | - |
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Collins, Robin Getz, Software-Defined Radio for Engineers, 1st ed. Analog Devices, 2018. [17] M. Hennerich, “Iio system considerations tips & tricks,” 2021, accessed: Jun. 22, 2025. [Online]. Available: https://wiki.analog.com/resources/tools-software/linux-software/libiio_tips_tricks [18] NumPy, “Numpy documentation,” 2021, accessed: Jun. 22, 2025. [Online]. Available: https://numpy.org/doc/stable/ [19] S. N. Alan Oppenheim, Alan Willsky, Signals and Systems, 2nd ed. Pearson, 2009. [20] R. S. Alan Oppenheim, Discrete-Time Signal Processing, 3rd ed. Pearson, 2009. [21] A. Devices, AD9361 Reference Manual, accessed: 2025-07-02. [Online]. Available: https://www.analog.com/media/en/technical-documentation/user-guides/AD9361_Reference_Manual_UG-570.pdf [22] Wikipedia, “dbfs,” 2025, accessed: Jul. 7, 2025. [Online]. Available: https://en.wikipedia.org/wiki/DBFS [23] ——, “Parseval’s theorem,” 2025, accessed: Jul. 10, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Parseval%27s_theorem [24] D. M. Pozar, Microwave Engineering, 4th ed. Wiley, 2011. [25] M. Hiebel, Fundamentals of Vector Network Analysis, 6th ed. Rohde Schwarz, 2014. [26] P. V. David Tse, Fundamentals of Wireless Communication. Cambridge University Press, 2005. [27] Wikipedia, “Channel access method,” 2025, accessed: Jun. 26, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Channel_access_method [28] ——, “Friis transmission equation,” 2025, accessed: Jun. 26, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Friis_transmission_equation [29] 李大嵩、李明峻、詹士慶、吳昭沁, 第五代行動通訊系統3GPP New Radio(NR)：原理與實務. 全華圖書股份有限公司, 2021. [30] W. Y. Y. C. G. K. Yong Soo Cho, Jaekwon Kim, MIMO‐OFDM Wireless Communications with MATLAB®. Wiley, 2010. [31] 高曜煌, 射頻技術在行動通訊的應用, 2nd ed. 高曜煌, 2017. [32] Wikipedia, “Delay spread,” 2024, accessed: Jun. 27, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Delay_spread [33] ——, “Coherence bandwidth,” 2025, accessed: Jun. 27, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Coherence_bandwidth [34] ——, “Coherence time (communications systems),” 2024, accessed: Jun. 27, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Coherence_time_(communications_systems) [35] ——, “Ieee 802.11,” 2025, accessed: Jun. 28, 2025. [Online]. Available: https://en.wikipedia.org/wiki/IEEE_802.11 [36] ——, “Toeplitz matrix,” 2025, accessed: Jun. 29, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Toeplitz_matrix [37] H. G. M. J. L. D. J. Goodman, “Single carrier fdma for uplink wireless transmission,” IEEE Vehicular Technology Magazine, vol. 1, no. 3, pp. 30–38, 2007. [38] Wikipedia, “Single-carrier fdma,” 2024, accessed: Jun. 29, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Single-carrier_FDMA [39] L. C. J. M. J. Q. Xi Zhang, Ming Jia, “Filtered-ofdm - enabler for flexible waveform in the 5th generation cellular networks,” in 2015 IEEE Global Communications Conference (GLOBECOM), 2015. [40] 3GPP, “3rd generation partnership project;technical specification group radio access network;nr;user equipment (ue) radio transmission and reception;part 1: Range 1 standalone (release 19),” 3GPP, Tech. Rep. 3GPP TS 38.101-1 v19.0.0 (2024-12), 2024. [41] cool3c, “台灣電信業者5g 頻段整理,” 2020, accessed: Jun. 29, 2025. [Online]. Available: https://www.cool3c.com/article/154759 [42] 3GPP, “3rd generation partnership project;technical specification group radio access network;nr;base station (bs) radio transmission and reception (release 18),” 3GPP, Tech. Rep. 3GPP TS 38.104 v18.8.0 (2024-12), 2024. [43] ——, “3rd generation partnership project;technical specification group radio access network;nr;physical channels and modulation (release 18),” 3GPP, Tech. Rep. 3GPP TS 38.211 V18.5.0 (2024-12), 2024. [44] D. C. T.M. Schmidl, “Robust frequency and timing synchronization for ofdm,” IEEE Transactions on Communications, vol. 45, no. 12, pp. 1613–1621, 1997. [45] D. Illustrations, “The schmidl cox synchronization technique for ofdm,” 2018, accessed: Jun. 30, 2025. [Online]. Available: https://dspillustrations.com/pages/posts/misc/schmidlcox-synchronization-for-ofdm.html [46] Wikipedia, “Zadoff-chu sequence,” 2025, accessed: Jun. 30, 2025. [Online]. Available: https://en.wikipedia.org/wiki/Zadoff%E2%80%93Chu_sequence | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/100151 | - |
| dc.description.abstract | 本論文將使用軟體定義無線電(Software-Defined radio, SDR)裝置實現sub-6 GHz下的應用，選用的裝置是亞德諾半導體(Analog Devices)出產的ADALM-PLUTO作為應用開發與驗證的平台，並嘗試將它開發成頻譜分析儀(Spectrum Analyzer, SA)、向量網路分析儀(Vector Network Analyzer, VNA)、基於OFDM調變的點對點通訊裝置。
SA的部分將會參照既有的Keysight儀器，嘗試以SDR裝置還原基本功能，例如顯示訊號功率、加窗等。VNA的部分將會對於S_21及S_11的量測給出步驟與演算法，並且會與待測元件的s2p檔進行比較。點對點通訊的部份將會嘗試以兩台SDR裝置傳收OFDM訊號，並參照3GPP之中一些關於頻寬設定的標準去設計協定，最後分析傳輸表現。 | zh_TW |
| dc.description.abstract | This thesis utilizes Software-Defined Radio (SDR) devices to implement applications in the sub-6 GHz range. The selected device is the ADALM-PLUTO, produced by Analog Devices, which serves as the platform for application development and validation. The goal of this thesis is to develop the device into a Spectrum Analyzer (SA), a Vector Network Analyzer (VNA), and a point-to-point communication device based on OFDM modulation.
For the SA topic, the implementation will reference existing Keysight instruments and attempt to replicate fundamental functions using the SDR device, such as signal power display and windowing. For the VNA topic, procedures and algorithms for measuring S_21 and S_11 will be provided, and the results will be compared with the s2p file of the device under test. For the point-to-point communication topic, two SDR devices will be used to transmit and receive OFDM signals. Protocol design will follow certain bandwidth configuration standards from 3GPP, and the transmission performance will be analyzed accordingly. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2025-09-24T16:39:51Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2025-09-24T16:39:51Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 致謝 i
摘要 ii Abstract iii 目次 v 圖次 ix 表次 xiii 符號列表 xiv 第一章緒論 1 1.1 研究動機. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 論文架構與貢獻. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 第二章軟體定義無線電開發環境介紹4 2.1 射頻傳收機架構. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1.1 基礎射頻傳收機架構. . . . . . . . . . . . . . . . . . . . . . . . 4 2.1.2 超外差射頻傳收機架構. . . . . . . . . . . . . . . . . . . . . . . 5 2.1.3 IQ 訊號背後的通訊原理. . . . . . . . . . . . . . . . . . . . . . . 9 2.2 ADALM-PLUTO 之硬體與其機制介紹. . . . . . . . . . . . . . . . . 12 2.2.1 硬體規格介紹. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2.2 軟體介面介紹. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.3 SDR 開發時常使用到的運算. . . . . . . . . . . . . . . . . . . . . . 17 2.3.1 基本運算. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.3.2 逐點相乘. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2.3.3 捲積運算. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.3.4 交相關運算. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.3.5 快速傅立葉轉換(Fast Fourier Transform, FFT) . . . . . . . . . . . 19 第三章頻譜分析儀的實現 21 3.1 離散傅立葉轉換(DFT) 的概念與計算. . . . . . . . . . . . . . . . . 21 3.1.1 傅立葉轉換基本概念. . . . . . . . . . . . . . . . . . . . . . . . 21 3.1.2 頻譜分析流程. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.2 軟體實作. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.2.1 功率表示. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.2.2 解析度問題. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.2.3 加窗. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.2.4 實作結果. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 第四章網路分析儀的實現 38 4.1 S 參數的概念. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.1.1 傳輸線、特性阻抗與反射係數. . . . . . . . . . . . . . . . . . . 38 4.1.2 S 參數的計算. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4.2 S21 量測手法與結果. . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.2.1 S21 之振幅校正與量測法. . . . . . . . . . . . . . . . . . . . . . 41 4.2.2 S21 之相位校正與量測法. . . . . . . . . . . . . . . . . . . . . . 44 4.2.3 量測結果. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4.3 S11 量測手法與結果. . . . . . . . . . . . . . . . . . . . . . . . . . . 50 4.3.1 定向耦合器的概念. . . . . . . . . . . . . . . . . . . . . . . . . . 50 4.3.2 S11 之量測與其算法. . . . . . . . . . . . . . . . . . . . . . . . . 52 4.3.3 量測結果. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 第五章點對點通訊的實現60 5.1 無線通訊的難題. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 5.1.1 干擾與大尺度衰落. . . . . . . . . . . . . . . . . . . . . . . . . . 60 5.1.2 小尺度衰落. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 5.2 正交分頻多工(OFDM) 的介紹. . . . . . . . . . . . . . . . . . . . . 63 5.2.1 基頻等效模型. . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 5.2.2 傳收機鏈路架構. . . . . . . . . . . . . . . . . . . . . . . . . . . 66 5.2.3 等化(Equalization) 的特性. . . . . . . . . . . . . . . . . . . . . . 69 5.2.4 OFDM 的改良版本. . . . . . . . . . . . . . . . . . . . . . . . . . 70 5.3 傳收機訊號鏈路設計. . . . . . . . . . . . . . . . . . . . . . . . . . 72 5.3.1 射頻與通訊參數之決定. . . . . . . . . . . . . . . . . . . . . . . 72 5.3.2 整體訊號鏈路與個別單元. . . . . . . . . . . . . . . . . . . . . . 74 5.3.3 Schmidl&Cox 之同步法. . . . . . . . . . . . . . . . . . . . . . . 76 5.3.4 訊號規劃與通道估計. . . . . . . . . . . . . . . . . . . . . . . . 78 5.4 實作細節與結果. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.4.1 上層協定相關細節. . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.4.2 同步、通道估計、星座圖結果. . . . . . . . . . . . . . . . . . . 83 第六章結論與未來展望 87 6.1 結論. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 6.2 未來展望. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 參考文獻 90 | - |
| dc.language.iso | zh_TW | - |
| dc.subject | 軟體定義無線電 | zh_TW |
| dc.subject | sub-6 GHz | zh_TW |
| dc.subject | ADALM-PLUTO | zh_TW |
| dc.subject | 離散快速傅立葉轉換 | zh_TW |
| dc.subject | S參數量測 | zh_TW |
| dc.subject | 定向耦合器 | zh_TW |
| dc.subject | OFDM傳收機 | zh_TW |
| dc.subject | sub-6 GHz | en |
| dc.subject | OFDM transceiver | en |
| dc.subject | directional coupler | en |
| dc.subject | S parameter measurement | en |
| dc.subject | Discrete fast Fourier transform | en |
| dc.subject | ADALM-PLUTO | en |
| dc.subject | Software-Defined radio | en |
| dc.title | 軟體定義無線電實現 sub-6 GHz 之量測與通訊應用 | zh_TW |
| dc.title | Applications of Measurement and Communication under Sub-6 GHz based on Software-Defined Radio | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 113-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 蘇炫榮;李啟民;劉馨勤;劉人瑋 | zh_TW |
| dc.contributor.oralexamcommittee | Hsuan-Jung Su;Chi-Min Li;Hsin-Chin Liu;Jake W. Liu | en |
| dc.subject.keyword | 軟體定義無線電,sub-6 GHz,ADALM-PLUTO,離散快速傅立葉轉換,S參數量測,定向耦合器,OFDM傳收機, | zh_TW |
| dc.subject.keyword | Software-Defined radio,sub-6 GHz,ADALM-PLUTO,Discrete fast Fourier transform,S parameter measurement,directional coupler,OFDM transceiver, | en |
| dc.relation.page | 94 | - |
| dc.identifier.doi | 10.6342/NTU202503059 | - |
| dc.rights.note | 同意授權(全球公開) | - |
| dc.date.accepted | 2025-08-10 | - |
| dc.contributor.author-college | 電機資訊學院 | - |
| dc.contributor.author-dept | 電信工程學研究所 | - |
| dc.date.embargo-lift | 2028-07-30 | - |
| 顯示於系所單位： | 電信工程學研究所 | |
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| ntu-113-2.pdf 此日期後於網路公開 2028-07-30 | 12.58 MB | Adobe PDF |
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