本篇論文旨在探討在高速移動環境下，針對台灣地區目前正在播送的數位手持式電視廣播系統(DVB-H)的實際現場量測。在本篇論文所探討的過程中，我們將做實測結果分析，實測的部分分為室內定點量測及室外高速度下量測兩部分。第一部分室內定點量測為測量DVB-H訊號經發射端儀器調變後在接收端所得到的結果及在室內的不同環境下接收DVB-H發射之訊號，了解環境變數之間的差異，並將所得到的結果進行分析及探討。第二部分室外高速度下量測則是針對台灣高鐵及高速公路進行實際場測，目的是了解在高速行動接收下所看到的問題，最後將所測得之結果進行分析，進而探討在未來無線廣播研究的領域上。

Wireless broadcast system applications nowadays are in widespread used. As the technology constantly updates, future demand of wireless broadcast will no longer be merely fixed reception. This thesis, aiming at current DVB-H in Taiwan, discusses the field test of high speed mobility. The field test can be divided into two parts 1) indoor fixed measurement and 2) outdoor measurement in high speed mobility. The purpose of the indoor fixed measurement is to understand the variations among variables of the environment and to analyze and investigate the outcomes. For outdoor measurement, the thesis has chosen Taiwan high speed rail and freeway to be the fields. The goal is to find out all the issues under high speed mobility, analyze the result and further discuss the field of future wireless broadcast research.

目 錄

第一章 緒論…………………………………………1
1.1 研究動機與目的……………………………………….…….1
1.2 手持式廣播系統技術簡介……………………………….….5
1.3 DVB-H系統技術簡介……………………………………..…6
1.4 發射端架構簡介……………………………………………..7
1.5 接收端架構簡介………………………………………..……8
1.6 各章節提要……………………………………………………………9

第二章 DVB-H 規範量測介紹…………………...10
   2.1 台灣DVB-H 播放發展現況及系統架構 ………………...10
   2.2 DVB-H量測方式簡介…………………………………...….12

第三章 室內(Indoor)系統測試結果及分析………15
3.1 測試架構介紹…………………………………………….....15
3.2 接收機架構概……………………………………...………..15
3.3 接收機室內測試系統參數設定………………………...…. 17
3.4 實測系統介紹…………………………………...…………. 20
3.5 發射端參數設定…………………………………………… 21
3.6 評估方法與判定…………………………………………… 25
3.7 參數名詞解釋……………………………………….………26
3.8 室內(Indoor)測試結果及分析………………………………27
  3.8.1 接收端最小及最大輸入訊號功率量測………………..27
  3.8.2 室內(Indoor)遮蔽式及無遮蔽式接收測試……….……33
  3.8.3 室內(Indoor)高樓層及低樓層測試…………………….37
3.8.4 室內(Indoor)雨天測試………………………………….41

第四章 室外(Outdoor)系統測試結果及分析….....45
4.1 發射頭端系統架構概述…………………………………… 45
4.2 廣播系統頭端資料………………………………….………46
4.3 台灣高鐵實測介紹………………………………………….48
  4.3.1 實測參數………………………………………….…….50
  4.3.2 實測結果及分析…………………………………..……53
4.4 台灣高速公路實測………………………………………….64
     4.4.1 實測結果及分析…………………………………..……68

第五章 結論與未來發展…………………………...70
5.1 結論………………………………………………………….70
5.2 未來發展…………………………………………………….72

參考目錄………………………………………....….73

 
圖目錄

圖1.1  DVB-H IP Datacast系統傳收圖………………………..…4
圖1.2  IPDC系統架構圖……………………….............................4
圖 1.3	 手持式數位視訊廣播規格……………………..…….……6
圖1.4  DVB-H系統架構圖…………………………………...…..7
圖1.5  DVB-H 發射端系統架構圖………………………...…….8
圖1.6  DVB-H 接收端架構圖……………………………....……8
圖2.1  台灣五大電視業者分配之頻譜…………………….……11
圖2.2  DVB-H 室內測試圖……………………………....……..14
圖3.1  USB接收機系統圖…………..…………………...……...17
圖3.2  PMT/PID 之設置………………………………….……..19
圖3.3  PMT/PID 之設置……………………………….....……..19
圖3.4  StreamXpress 設定圖………………………..……..……22
圖3.5  StreamXpress 設定圖…………………………..…..……23
圖3.6  StreamXpress 設定圖…………………………..…..……23
圖3.7  頻譜分析儀在618MHz 所量測到的Channel Power……24
圖3.8  BGT215 USB Application Board………...………...…….24
圖3.9 接收天線…………………………………………………25
圖3.10 測試架構圖……………………………………………...28
圖3.11  Bit Error Rate 在接收端解碼過程圖…………….…….29
圖3.12  SFU 頭端發射設定參數…………………………...…..31
圖3.13  測試平臺…………………………………………….…..32
圖3.14  測試RSSI訊號接收強度 (遮蔽式測試)……….….…..34
圖3.15  測試RSSI訊號接收強度 (無遮蔽式測試)…….……...34
圖3.16  RSSI訊號接收強度 (無遮蔽式量測)………….……....35
圖3.17  RSSI訊號接收強度 (遮蔽式量測)……….………........36
圖4.1   DVB-T 發射端系統架構圖……………………..………45
圖4.2  DVB-H 發射端系統架構圖……………………….…….46
圖4.3  台灣電場發射功率涵蓋圖……………………………….47
圖4.4   高鐵實測路線圖…………………………………………49
圖4.5   高速公路實測路線圖……………………………………66


表目錄

表2.1  台灣五大行動業者………………………………………..11
表3.1  影像參數…………………………………………………..21
表3.2  RSSI訊號接收強度 (無遮蔽式量測)……….…….……..35
表3.3  RSSI訊號接收強度 (遮蔽式量測)……………..………..35
表4.1  竹子山發射站覆蓋範圍…………………………………..48
表4.2  小型補隙站…………….……………………………...…..48
表4.3  CTV北部廣播頻道表…………….……………..…....…..51
表4.4  TW-Airnet中部廣播頻道表…………….…………....…..52

參考文獻

[1]	EN 302 304 v1.1.1: Digital Video Broadcasting (DVB); Transmission System for Handheld Terminals (DVB-H) ETSI, November 2004

[2]	TR 102 377, Digital Video Broadcasting (DVB); DVB-H Implementation Guidelines, ETSI, November 2005.

[3]	TR 101 211, Digital Video Broadcasting (DVB); Guidelines on Implementation and Usage of Service Information (SI), ETSI, May 2004.

[4]	ETSI TR 102 401Digital Video Broadcasting (DVB)；Transmission to Handheld Terminals (DVB-H) Validation Task Force Report, Mar 2004

[5]	ETSI EN 301 192 Digital Video Broadcasting (DVB)；specification for data broadcasting, November 2005

[6]	IPDC Forum Broadcast Media in Mobile Workshop Presentations London, April 2004

[7]	DVB A098, Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Architecture, November 2005.

[8]	工研院電通所 陳慶永Ching-Yung Chen, “手持式數位電視DVB-H技術簡介”, Jan. 2005, pp.2 -10

[9] DVB A097, Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Use Cases and Services, November 2005

[10]	EN 300 744, Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television, ETSI, November 2004.

[11]	IETF RFC 2327, SDP- Session Description Protocol, April 1998.

[12] DVB TM 3095. IPDC in DVB-H: Technical Requirements.

[13]	林其鋒, “UMTS + DVB-H建構強大IPDC平台”, Feb. 2006, pp.2-5
[14]	TR 101 202, Digital Video Broadcasting (DVB); Implementation Guidelines for Data Broadcasting, 2003.

[15] NorDig, Unified Requirements for Integrated Receiver Decoders for use in cable, terrestrial, satellite and IP-based networks, ver 1.0.2. , Aug 2005

[16]	IEC 62002-2 EICTA MBRAI 2.0;Mobile And Portable DVB-T/H Radio Access –Part 2 Interface conformance testing, Oct.2005

[17] IEC 62001-1 EICTA MBRAI 2.0;Mobile and Portable DVB-T/H Radio Access –Part 1: Interface specification, Oct.2005 

[18] D Book Digital Terrestrial Television, Requirements for Interoperability, Digital Television Group 1999.

[19] DVB-Technical Module Ad-Hoc Group DVB-UMTS: Technical aspects in spectrum allocation for DVB-UMTS convergence terminals, December 2002.

[20] York,Kuan, Technical Development Technical Development of Mobile TV and The Trial result of PTS consortium, Mar. 2006

[21] Subjective assessment of the quality of television picture : CCIR Grade Plenary Assembly Dubrovnik, 1992.