基于OFDM技术的电力线通信系统研究
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摘要
在通信技术高速发展的今天，电力线通信(Power Line Communication)简称为PLC技术，是目前发展前景十分看好的宽带接入技术，利用配电网低压线路传输高速数据、话音、图象等多媒体业务信号的一种通信方式。随着Internet技术的飞速发展，利用220V低压电力线传输高速数据的价值越来越为人们所重视，因为它具有不用布线、覆盖范围广、连接方便的显著特点，被认为是提供宽带网络接入解决方案最具竞争力的技术之一。
本文首先介绍了电力线载波通信的概念及应用前景，研究了电力线通信信道的基本特点，建立电力线通信信道的模型，并且基于电力线信道的特点提出一种基于OFDM(正交频分复用)技术的高速电力线载波通信系统。对OFDM技术原理进行了介绍，分析OFDM应用于电力线通信的优点和OFDM中关键技术，建立基于OFDM技术的电力线通信系统的仿真，对系统的性能进行了分析。最后对Intellon公司的电力线通信收发芯片INT5200及以太网控制器KS8721BL的功能和使用进行了说明，在此基础上给出了PLC调制解调器的总体设计方案和各功能模块的具体实现方案。
In our ear communication technologe is developing quickly,Power Line Communication (PLC) technology has become the wide band interface techlogy with a bright prospect. It is a communication method make use of low pressure line of the distribution network to transmit high-speed data,voice,image and other mulit-media service signals. With the rapid development of Internet technology,the value of transmitting high-speed data by means of 220V low pressure electricity line has gained people's attention,for it contains some remarkable features such as no wiring,wide covering and easy connection .It is regarded as one of the most competitive technology of wide band network.
This thesis introduces the concept and application prospect of power line communication,makes research on the characteristics of power line channel and power line channel model making,and according to the characteristic of power line channel,puts forward a high-speed power line commumication system based on OFDM(orthogonal frequency division multiplexing) technology.In addition, this thesis introduces the principle of OFDM,analyzes the advantages of applying OFDM to power line communication and the key technology of OFDM,establishes power line commumication system simulation based on OFDM technology and makes performance analysis of the system.Finally,this paper explains the functions and uses of power line communication receiving and dispatching chip INT5200 and Ethernet PHY KS8721BL,and based on the above,put forward the geaeral designing plan of PLC modem and the concrete realization method of individual functioning module.
本文首先介绍了电力线载波通信的概念及应用前景，研究了电力线通信信道的基本特点，建立电力线通信信道的模型，并且基于电力线信道的特点提出一种基于OFDM(正交频分复用)技术的高速电力线载波通信系统。对OFDM技术原理进行了介绍，分析OFDM应用于电力线通信的优点和OFDM中关键技术，建立基于OFDM技术的电力线通信系统的仿真，对系统的性能进行了分析。最后对Intellon公司的电力线通信收发芯片INT5200及以太网控制器KS8721BL的功能和使用进行了说明，在此基础上给出了PLC调制解调器的总体设计方案和各功能模块的具体实现方案。
In our ear communication technologe is developing quickly,Power Line Communication (PLC) technology has become the wide band interface techlogy with a bright prospect. It is a communication method make use of low pressure line of the distribution network to transmit high-speed data,voice,image and other mulit-media service signals. With the rapid development of Internet technology,the value of transmitting high-speed data by means of 220V low pressure electricity line has gained people's attention,for it contains some remarkable features such as no wiring,wide covering and easy connection .It is regarded as one of the most competitive technology of wide band network.
This thesis introduces the concept and application prospect of power line communication,makes research on the characteristics of power line channel and power line channel model making,and according to the characteristic of power line channel,puts forward a high-speed power line commumication system based on OFDM(orthogonal frequency division multiplexing) technology.In addition, this thesis introduces the principle of OFDM,analyzes the advantages of applying OFDM to power line communication and the key technology of OFDM,establishes power line commumication system simulation based on OFDM technology and makes performance analysis of the system.Finally,this paper explains the functions and uses of power line communication receiving and dispatching chip INT5200 and Ethernet PHY KS8721BL,and based on the above,put forward the geaeral designing plan of PLC modem and the concrete realization method of individual functioning module.
引文
[1] 樊昌信，詹道庸，徐炳祥，吴成颗．通信原理．国防工业出版社，1995：136-217
[2] 汤效军，电力线载波通信技术的发展及特点．电力系统通信，2003(1)：44－56
[3] 吕振肃，雷锡社，刘敏．低压电力线通信技术及其应用．甘肃科学学报，2002，14(4)：28～34
[4] 杨扬．快速发展的低压电力线载波技术及其应用展望．浙江电力，2002，4：43－45
[5] 徐天成，钱冬宁，张胜付．信号与系统．第1版．哈尔滨：哈尔滨工程大学出版社，2000
[6] 胡道元．网络设计师教程．第1版. 北京：清华大学出版社，2001
[7] 杨玲君，殷小贡，黄红兵，张国珍，OFDM 用于低压电力线数据通信的仿真研究．电力系统通信，No．1, 2003：25－30
[8] 精英科技．电路板设计完全手册．第1版．北京：中国电力出版社，2002
[9] 张有兵，程时杰等．低压电力线载波通信信道的建模研究．电力系统自动化，2002(26)：62－66
[10] 柯南．非常电路板设计．第1版．北京：中国铁道出版社，2000
[11] 陈庆伟，陈青林．工业自动化网络技术及应用．第1版．南京：南京理工大学出版社，2001
[12] 谦君．数字家庭技术专栏(一)—HomePlug技术：用电源线将以太网络带进家门．电子与电脑．2004(1)：135－140
[13] 彭为国，别碧勇．以INT51X1为核心的低压电力网载波调制解调器及其实现技术．继电器．2004(9)：35－39，73
[14] 刘华玲，张保会，刘海涛．扩频通信、OFDM调制技术及其在电力线通信中的应用分析．继电器，2001，29(11)：1721
[15] 汪晓岩，易浩勇，樊昊，孙荣久,OFDM技术及其在电力线通信的应用． 电力系统通信．2001，12：1-7
[16]孙建军，吴太虎．电力线通信(PLC)技术的发展，2003，5∶1-4
[17]马强，陈启美，李勃．跻身未来的电力线通信(二)电力线信道分析及模型．电力系统自动化，2003，27(4)∶72-76
[18]魏克军，益晓新．一种采用压扩算法来降低OFDM信号PAPR的新方法．电视技术，2003，2∶14-15
[19]郭岭，郭振民．降低OFDM峰均功率比技术综述．现代电子技术，2002(11)∶58-65
[20]张圣清，于东海，马建旭，邹采荣．低压电力线通信信道噪声特性的测试与分析．电力系统通信.2003(1)∶35-38
[21]美国Interllon公司．Intellon技术资料光盘．美国Intellon公司．2004
[22]David Clark. Power Line Communications-Finally Ready for Prime Time.IEEE Transactions on Internet Computing, 1998, 1:10-11
[23]John G.Proak i s:Digital Communications.Third Edition.McGraw-Hill,IncUnited States of America. 1995.
[24]Jean Walrand, Pravin Varaiya: High-Performance Communication Networks.Second Edition. Harcourt Asia Pte Ltd. China. 2002.
[25]M. Zimmermann and K. Dostert. Analysis and Modeling of Impulsive Noise in Broad-BandPower line Communications. IEEE Trans. Electromagnetic Compatibility, volum. 44, Feb.2002:249-258.
[26]M. Zimrnermann and K. Dostert. A Multipath Model for the power line Channel. IEEETrans. Commun., volum, 50, no. 4, Apr. 2002, pp. 553-559.
[27]M. Gotz, M. Rapp and K. Dostert, Power line channel characteristics and their effect oncommunication system design. Communications Magazine, IEEE, volum. 42, Issue: 4, Apr. 2004,pp.78-86.
[28]M. Gotz and K. Dostert, A universal high speed powerline channel emulation system.Broadband Communications, 2002. Access,smission, Networking. 2002 International ZurichSeminar on, 19-21 Feb. 2002.
[29]T. M. Schmidl, D. C. Cox. Low-complexity burst synchronization for OFDM. IEEEInternational Conference on Communications. 1996. volum. 3, 130-1306
[30] T. M. Schmidl, D. C. Cox. Robust frequency and timing synchronization for OFDM.IEEE Trans. Communications, 1997,45(12): 1613-1621
[31] Tlili, F., Rouissi, F., and Ghazel, A.Precoded OFDM for power line broadband communication. Circuits and Systems. ISCAS '03. The 2003 International Symposium onVolume: 2, may 2003:109-128
[32] Jie Mao, Qiang Gao, Wu Yang, and Yao Fu. The realization of OFDM power line modem with DSP. Signal Processing. 6th International Conference on, Volume: 2, Aug. 2002:1 753-1756.
[33] Granado, J., and Torralba, A.Method for frequency offset estimation in OFDM with application to power line communication. Electronics Letters, Volume: 39, March 2003:468-470.
[2] 汤效军，电力线载波通信技术的发展及特点．电力系统通信，2003(1)：44－56
[3] 吕振肃，雷锡社，刘敏．低压电力线通信技术及其应用．甘肃科学学报，2002，14(4)：28～34
[4] 杨扬．快速发展的低压电力线载波技术及其应用展望．浙江电力，2002，4：43－45
[5] 徐天成，钱冬宁，张胜付．信号与系统．第1版．哈尔滨：哈尔滨工程大学出版社，2000
[6] 胡道元．网络设计师教程．第1版. 北京：清华大学出版社，2001
[7] 杨玲君，殷小贡，黄红兵，张国珍，OFDM 用于低压电力线数据通信的仿真研究．电力系统通信，No．1, 2003：25－30
[8] 精英科技．电路板设计完全手册．第1版．北京：中国电力出版社，2002
[9] 张有兵，程时杰等．低压电力线载波通信信道的建模研究．电力系统自动化，2002(26)：62－66
[10] 柯南．非常电路板设计．第1版．北京：中国铁道出版社，2000
[11] 陈庆伟，陈青林．工业自动化网络技术及应用．第1版．南京：南京理工大学出版社，2001
[12] 谦君．数字家庭技术专栏(一)—HomePlug技术：用电源线将以太网络带进家门．电子与电脑．2004(1)：135－140
[13] 彭为国，别碧勇．以INT51X1为核心的低压电力网载波调制解调器及其实现技术．继电器．2004(9)：35－39，73
[14] 刘华玲，张保会，刘海涛．扩频通信、OFDM调制技术及其在电力线通信中的应用分析．继电器，2001，29(11)：1721
[15] 汪晓岩，易浩勇，樊昊，孙荣久,OFDM技术及其在电力线通信的应用． 电力系统通信．2001，12：1-7
[16]孙建军，吴太虎．电力线通信(PLC)技术的发展，2003，5∶1-4
[17]马强，陈启美，李勃．跻身未来的电力线通信(二)电力线信道分析及模型．电力系统自动化，2003，27(4)∶72-76
[18]魏克军，益晓新．一种采用压扩算法来降低OFDM信号PAPR的新方法．电视技术，2003，2∶14-15
[19]郭岭，郭振民．降低OFDM峰均功率比技术综述．现代电子技术，2002(11)∶58-65
[20]张圣清，于东海，马建旭，邹采荣．低压电力线通信信道噪声特性的测试与分析．电力系统通信.2003(1)∶35-38
[21]美国Interllon公司．Intellon技术资料光盘．美国Intellon公司．2004
[22]David Clark. Power Line Communications-Finally Ready for Prime Time.IEEE Transactions on Internet Computing, 1998, 1:10-11
[23]John G.Proak i s:Digital Communications.Third Edition.McGraw-Hill,IncUnited States of America. 1995.
[24]Jean Walrand, Pravin Varaiya: High-Performance Communication Networks.Second Edition. Harcourt Asia Pte Ltd. China. 2002.
[25]M. Zimmermann and K. Dostert. Analysis and Modeling of Impulsive Noise in Broad-BandPower line Communications. IEEE Trans. Electromagnetic Compatibility, volum. 44, Feb.2002:249-258.
[26]M. Zimrnermann and K. Dostert. A Multipath Model for the power line Channel. IEEETrans. Commun., volum, 50, no. 4, Apr. 2002, pp. 553-559.
[27]M. Gotz, M. Rapp and K. Dostert, Power line channel characteristics and their effect oncommunication system design. Communications Magazine, IEEE, volum. 42, Issue: 4, Apr. 2004,pp.78-86.
[28]M. Gotz and K. Dostert, A universal high speed powerline channel emulation system.Broadband Communications, 2002. Access,smission, Networking. 2002 International ZurichSeminar on, 19-21 Feb. 2002.
[29]T. M. Schmidl, D. C. Cox. Low-complexity burst synchronization for OFDM. IEEEInternational Conference on Communications. 1996. volum. 3, 130-1306
[30] T. M. Schmidl, D. C. Cox. Robust frequency and timing synchronization for OFDM.IEEE Trans. Communications, 1997,45(12): 1613-1621
[31] Tlili, F., Rouissi, F., and Ghazel, A.Precoded OFDM for power line broadband communication. Circuits and Systems. ISCAS '03. The 2003 International Symposium onVolume: 2, may 2003:109-128
[32] Jie Mao, Qiang Gao, Wu Yang, and Yao Fu. The realization of OFDM power line modem with DSP. Signal Processing. 6th International Conference on, Volume: 2, Aug. 2002:1 753-1756.
[33] Granado, J., and Torralba, A.Method for frequency offset estimation in OFDM with application to power line communication. Electronics Letters, Volume: 39, March 2003:468-470.