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研究生: 林樂威
Lin, Le-Wei
論文名稱: 數位廣播 HD Radio FM 系統基頻收發機之設計及實作
Design and Implementation of a Baseband Transceiver for HD Radio FM System
指導教授: 蘇賜麟
Su, Szu-Lin
學位類別: 碩士
Master
系所名稱: 電機資訊學院 - 電腦與通信工程研究所
Institute of Computer & Communication Engineering
論文出版年: 2010
畢業學年度: 98
語文別: 中文
論文頁數: 60
中文關鍵詞: HD Radio FM正交分頻多工FPGA
外文關鍵詞: HD Radio FM, OFDM, FPGA
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  • 本論文探討了數位廣播HD Radio FM系統傳送端及接收端功能與演算法架構,其中包括傳送端之資料格式安排、星座點映射、正交分頻多工調變,和接收端之時間同步、正交分頻多工解調、整數及小數倍載波頻率偏移估測、通道估測。過程中考慮理論面與技術面,以FPGA硬體技術為基礎實現之。

    In this thesis, the function and algorithm structure of both transmitter and receiver end of HD Radio FM digital radio broadcasting system is discussed. It includes data format allocation, mapping and OFDM modulation of transmitter end; and timing synchronization, OFDM demodulation, integer and fractional carrier frequency offset estimation, and channel estimation of receiver end. With not only the theoretical aspect but also the technical aspect taken into consideration, we implemented the system based on FPGA hardware technology.

    摘要 i Abstract ii 目錄 iv 表目錄 vi 圖目錄 vii 第一章 簡介 1 1.1. 數位音訊廣播系統介紹 1 1.2. HD Radio FM廣播系統介紹 2 1.3. 論文架構安排 3 第二章 傳送端設計 4 2.1. HD Radio FM 系統規格參數 4 2.2. 傳送端設計 7 2.2.1. 攪亂器 7 2.2.2. 通道編碼 8 2.2.3. 交錯 9 2.2.4. 星座點映射 10 2.2.5. HD Radio FM系統模擬頻譜圖 11 2.2.6. 內頻帶訊號設計 AM-over-FM 11 第三章 接收端設計 14 3.1. 訊號同步 14 3.1.1. 符元時間同步 15 3.1.2. 載波頻率偏移同步 16 3.2. 通道估測 20 3.2.1. HD Radio FM 通道估測 20 3.2.2. 內頻帶訊號通道估測 30 3.3. 類比訊號解調 33 第四章 FPGA驗證 36 4.1. 傳送端 36 4.1.1. 星座點映射 37 4.1.2. IFFT 38 4.1.3. 加循環字首 38 4.1.4. DAC 39 4.1.5. 傳送端頻譜圖 39 4.1.6. 傳送端合成報告 41 4.2. 接收端 43 4.2.1. 時間同步 43 4.2.2. 小數倍頻率偏移 46 4.2.3. 去循環字首 46 4.2.4. FFT 46 4.2.5. 訊框同步及整數倍頻率偏移 47 4.2.6. 通道估測 48 4.2.7. 解星座點映射 49 4.2.8. 接收端驗證 49 4.2.9. 電腦-FPGA介面 51 4.2.10. 接收端合成報告 52 第五章 結論 54 參考文獻 55 附錄 56

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