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研究生:黃文隆
研究生(外文):Wen-Lung Huang
論文名稱:DVB-H之通道測量研究與模式分析
論文名稱(外文):MEASUREMENT STUDY OF DVB-H RADIO CHANNEL AND ITS MODEL ANALYSIS
指導教授:黃啟芳黃啟芳引用關係
指導教授(外文):Chi-Fang Huang
學位類別:碩士
校院名稱:大同大學
系所名稱:通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:英文
論文頁數:77
中文關鍵詞:通道模式通道測量
外文關鍵詞:CHANNEL MODELDVB-H
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台灣數位電視地面廣播(DVB-T)已經正式商業營運,行動電視已普及化至每個人的生活當中,由於行動通訊網路技術快速的發展,利用手機收看電視節目的服務(DVB-H),亦成為一種趨勢,DVB-H是為DVB-T的延伸擴展,擁有低耗能及較優越的行動接收與抗干擾性,並且以TV anytime & anywhere 以及Free to view的方式特色,未來將打造多元服務與開創無限商機。
台灣共計有五個團隊正進行「手持式行動電視試播」,試播範圍分別為台北市、台中市、高雄市,而因都會區內高樓林立,電波在此複雜的環境中,不僅在傳輸路徑會造成路徑損失(Path Loss),亦會因電波遮蔽效應(Shadow Fading)導致通道衰落(Channel Fading)現象,同時因建物的阻擋,接收端亦會發生多路徑衰落(Multi-Path Fading)情形和建物本身所造成的電波穿透損失而影響收視品質。
本研究之主要目的為DVB-H信號在無線通道中之時變還境下的接收效能,並以華視團隊(CH35-599MHz)為研究之對象,針對其服務區(高雄縣市)進行電波涵蓋模擬與實際訊號量測,量測參數包括電場強度、B.E.R、M.E.R值,以統計分析的方式驗證都會區射頻通道之模型與電波傳播之特性,可做為未來營運者規劃網路之參考依據。
The Digital TV broadcasting (DVB-T) has been already commercial operation in Taiwan and the mobile TV has been popularized as well. Since the mobile wireless communication network technology develops so fast, it becomes a kind of trend which uses the mobile terminals to watch the TV program. The DVB-H technology is an extension of the DVB-T standard which transmits multimedia services over digital terrestrial broadcasting networks to handheld terminals. It has low average power consumption and high mobility, it also improves the impulse interference of DVB-T. By the way for TV anytime, TV anywhere and Free to view, we can find the multi service and business opportunity.
There are five groups which carry out the mobile TV trial in Taiwan now, and the service coverage including Taipei, Taichung and Kaohsiung. In a complex environment, the channel fading follow the path loss and shadow effect. The radio wave will raise the refraction, reflection and scattering because of the block of buildings and it will generate the multi-path phenomenon and the penetration loss when penetrating the buildings.
The main purpose of this research is for the study about the DVB-H signal efficiency in the wireless channel. We measure the DVB-H signal from the CTS transmitter at the Zhong-Liao Broadcasting Station focusing at the DVB-H service area (Kaohsiung) than it is to have a mobile testing and collect the DVB-H parameters, which are in channel electric field strength, B.E.R and M.E.R values. We can use the statistic model to understand the wireless characteristics and prove the radio channel model in the different environments. This measured data of Kaohsiung should be the good references for the other broadcasting operators or terminal providers developed in the future. .
TABLE OF CONTENTS

ENGLISH ABSTRACT Ⅰ
CHINESE ABSTRACT Ⅲ
ACKNOWLEDGMENTS Ⅳ
TABLE OF CONTENTS Ⅴ
LIST OF FIGURES Ⅶ
LIST OF TABLES X
CHAPTER 1 INTRODUCTION 1
1.1 DVB-H Development 1
1.2 Classification of DVB-H Transmission StandardS 1
1.3 DVB-H Spectrum and Related Parameters 3
1.4 The European Standard DVB-H Transmission Mode 6
CHAPTER 2 CHANNEL MODEL OF DVB-H TRANSMISSION 8
2.1 Path Loss Propagation Model 9
2.2 Large Scale Propagation Model 13
2.3 Small Scale Propagation Model 15
2.4 The Signal Parameter of Measurement 18
CHAPTER 3 OUTDOOR AND INDOOR MEASUREMENT 21
3.1 Transmitter System and Locations Built in Kaohsiung Area by CTS 21
3.2 DVB-H OUTDOOR MEASUREMEN 27
3.3 DVB-H INDOOR MEASUREMENT 34

CHAPTER 4 THE ANALYSIS OF MEASUREMENT RESULT 36
4.1 The Receiver Signal Quality of Main Road in Kaohsiung 36
4.2 The DVB-H signal distribution of City1 and City2 47
4.3 DVB-H Indoor Measurement 55
CHAPTER 5 CONCLUSION 61
REFERENCES 63
AUTHOR 66

LIST OF FIGURES
Figure 1.1 Conceptual description of using a DVB-H system 3
Figure 2.1 Multi-Path Effect 9
Figure 2.2 The path loss curves of 600MHz 12
Figure 2.3 The ITU-R P.1546 calculators 13
Figure 2.4 The mobile-unit running map 15
Figure 2.5 Radio path-loss slope 16
Figure 2.6 Two incoming signals combine with different phases 16
Figure 2.7Multipath Fading Effect t 17
Figure 2.8 Time Variation Channel Impulse Response 18
Figure 2.9 Positions of vectors used for determining the modulation error 19
Figure 2.10 The cliff effect of digital signal 20
Figure 3.1 The locations of Zhong-Liao-Shan .21
Figure 3.2 The Kaohsiung Corresponsive of CTS Building 22
Figure 3.3 The DVB-H Transmit System Block Diagram of Zhong-Liao-Shan 23
Figure 3.4 The Antenna Horizontal Field Pattern of Zhong-Liao-Shan 24
Figure 3.5 The Antenna Vertical Field Pattern of Zhong-Liao-Shan 24
Figure 3.5 Zhong-Liao-Sha predict the DVB-H coverage 26
Figure 3.6 DVB-H coverage prediction in detail map 27
Figure 3.7 To install driving testing tools 28
Figure 3.9 Antenna Pattern 30
Figure 3.10 PC-4T2 to record the DVB-H signal 31
Figure 3.11 Constellation 31
Figure 3.12 Spectrum 31
Figure 3.13 Impulse Response 31
Figure 3.14 Map Data 31
Figure 3.15 The relevant positions for the planning routes. 33
Figure 3.16 Monitor the DVB-H program on real time. 34
Figure 3.19 Indoor Measurement 36
Figure 4.1 Route-a and Route-B DVB-H signal level distribution 37
Figure 4.2 Route-a and Route-b B.E.R distribution 38
Figure 4.4 The P.D.F of Route-a 41
Figure 4.5 The P.D.F of Route-b 41
Figure 4.6 The C.D.F of Route-a and Route-b 42
Figure 4.7 The C.D.P of B.E.R 43
Figure 4.8 M.E.R vs B.E.R of Route-a 44
Figure 4.9 The multi-path Fading on the San-Duo road 45
Figure 4.10 M.E.R vs B.E.R of Route-b 45
Figure 4.11 The log-normal distribution of route-a 47
Figure 4.12 the log-normal distribution of route-b 46
Figure 4.13 The signal field distribution of City1and 48
Figure 4.14 The B.E.R distribution of City-1 and City-2 49
Figure 4.15 City-1 Buildings Distribution 49
Figure 4.16 City-2 Buildings Distribution 49
Figure 4.17 The P.D.F of City-1 51
Figure 4.18 The P.D.F of City-2 51
Figure 4.19 The C.D.P of City-1 and City-2 51
Figure 4.20 The C.D.P of B.E.R 52
Figure 4.21 M.E.R vs B.E.R of City-1 54
Figure 4.22 M.E.R vs B.E.R of City-2 54
Figure 4.23 City-1 log-normal distribution of City-1 55
Figure 4.24 City-1 log-normal distribution of City-2 56
Figure 4.25 Appearance of the twenty buildings 61
REFERENCES
[1] ETSI, ”Digital Video Broadcasting (DVB); DVB-H Implementation
Guidelines”, TR 102 377 v1.2.1,PP.15-20, November 2007.
[2] DVB STANDARDS ETSI EN300744, http://www.dvb.org
[3] DVB STANDARDS ETSI EN301192, http://www.dvb.org
[4] ETSI EN 302 304: "Digital Video Broadcasting (DVB); Transmission System
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[5] ETSI, ”Digital Video Broadcasting (DVB); DVB-H Implementation
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[6] Raymond Pieck, Inc. “DVB-H Mobile Devices ”.PP.8-12. September 21, 2006.
[7] W. C. Y. Lee, Mobile Communications Design Fundamentals, 2nd ed., John
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[16] http://zone.ni.com/devzone/cda/tut/p/id/3876
[17] W.G.Jeon , K H. Chuang, and Y. S. Cho, “An equalization technique for
orthogonal frequency division multiplexing systems in time-variant multipath
channels,” IEEE Trans. Commun., vol. 49, pp. 1185-1191, Jan. 1999.


[18] W. G. Jeon, K H. Chuang, and Y. S. Cho, “An equalization technique for
orthogonal frequency division multiplexing systems in time-variant multipath
channels,” IEEE Trans. Commun., vol. 49, pp. 1185-1191, Jan. 1999.
[19] http://zone.ni.com/devzone/cda/tut/p/id/3652
[20] Sloboda, M. Ricny, V. “Influence of Transmission Channel on DVB-T Signal” International Conference,Radioelektronika, 2007. 17th IEEE,vo1.3.
[21] http://www.atdi-us.com/ICStelecom.aspx
[22] http://www.ncc.gov.tw/dvb-t standards/RG3002
[23] http://www.pocketgpsworld.com/rikaline-gps-6010-x5.php
[24] http://www.enensys.com/en/usb2.0_adapters/ dvb-h_receiver.html
[25] W. C. Y. Lee, Mobile Communications Engineering, 2nd ed.,
McGraw-Hill, New York, pp.50-64, 1977.
[26] Yi-min Tsai, “Measurement and Model Analysis of The Radio Chanel in DVB-T ”, PP.85-90, May 2006.
[27] G. Faria, J. A. Henriksson, E. Stare, and P. Talmola,” Digital Broadcast Services to Handheld Devices,” Proc. of the IEEE,Vol.94,No.1,pp.194-209, Jan 2006.
[28] Saeed Ghahramani,Fundamentals of Probability, with Stochastic Processes (3rd Edition),pp.143-153, 2004
[29] EBU 3317,“ Planning parameters for hand held reception” ,July 2007,ANNEX A
[30] ETSI, ”Digital Video Broadcasting (DVB); DVB-H Implementation Guidelines”, TR 102 377 v1.2.1,PP.70-88, November 2007.
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