摘要
室内电力线数据通信是实现家庭自动化和家庭联网的一种方便又经济的通信方法。本文在对电力线信道特征详细分析的基础上，设计了室内电力线直接序列扩展频谱通信系统。
本文设计了一个测量系统对实际电力线信道的主要特性进行了测量，详细分析了电力线的信号传输特性和噪声特性，给出了一个实用的室内电力线信道模型，包括参数化的传输函数模型以及背景噪声、窄带噪声和脉冲噪声的近似模型，并给出了计算机仿真实现方法。
讨论了电力线通信存在的一些问题及解决方法。研究对照了当前世界上使用的电力线通信技术，讨论了直接序列扩频通信技术应用于室内电力线通信的优势。
使用直接序列扩频及QPSK等通信技术构建了室内电力线通信系统，给出了主要的技术指标。应用Systemview仿真工具对系统进行了性能仿真，分析了系统的误比特率。并将其与非扩频系统进行了对比。
In-building power line data communication is a convenient and economical method to implement home automation and home network. This paper designs an in-building power line DSSS communication system after analyzing the properties of power line channel in detail.
This paper designs a measurement system and measures the main properties of power line practically. The characteristics of power line are analyzed in detail, and a power line channel model is presented which consists of the parametric transfer function model and the simulating model of background noise, narrow noise and impulse noise. Simultaneously the simulating method on the computer is presented.
Problems in power line communication and the methods to resolve them are discussed. This paper compares the technology used currently in power line communication and discusses the advantage of DSSS technology to use in power line communication.
An in-building power line data communication system is built using DSSS and QPSK technology and its important parameters are presented. Then the system is simulated in Systemview to analyze its performance and BER. At the end of this paper the DSSS system is compared with two different systems to emphasize its perfect performance.
引文
1、H. Ferreira, H. Grove, O. Hooijen and A. H. Vinck, Power Line Communications: An Overview, IEEE Trans., 1996, pp.558-563
2、赵丙镇，电力线高速通信技术的现状及发展，电力系统通信，2003年第1期，PP．12-16
3、N. Pavlidou, A. J. Hart Vinck, J. Yazdani and B. Honary, Power Line Communications: State of the Future Trends, IEEE Communications Magazine, Apr., 2003, pp.34-40
4、邹志威，陈启美，左雯，跻身未来的电力线通信(一)回顾与展望，电力系统自动化，2003年2月10日，第27卷第3期，pp．72-76
5、齐淑清，美国联合电力线通信协会(UPLC)2002年年会综述，电力系统通信，2003年第4期，pp．12-16
6、Wiring Up the Home, IEE Review, Sep. 1998
7、http://www.intellon.com/
8、http://www.echelon.com.cn/
9、F.J. Simois, J. I. Acha, Study and Modeling of Noise on the Low Voltage Part of the Electrical Power Distribution Network between 30KHz and 1MHz, IEEE Trans., 2001, pp.217-222
10、K. C. Abraham, S. Roy, A Novel High-Speed PLC Communication Modem, Trans. Power Delivery, Vol.7, No.4, Oct. 2003, pp. 1960-1968
11、M. H. L. Chan, R. W. Donaldson, Attenuation of Communication Signals on Residential and Commercial Intrabuilding Power-Distribution Circuits, IEEE Trans. Electromagn. Compat., Vol. EMC-28, No.4, Nov. 1986,pp.220-230
12、J. R. Nicholson, and J. A. Malsck, RF Impedance of Power Lines and Line Impedance Stabilization Networks Measurement, IEEE Trans. Electromagn. Compat., Vol. EMC-15, No.2, Nov. 1973,pp.84-86
13、R. C. Hemminger, L. J. Gale and J. B. O'Neal, Signal Propagation on Single Phase Power Distribution Lines at Power Line Carrier Frequencies, IEEE Trans. Power Delivery, Vol. PWRD-2, No.1, Jan.1987, pp.28-33.
14、R, M. Vines, H. J. Trussell, K. S. Shuey and J. B. O'Neal, Impedance of the Residential Power-Distribution Circuit, IEEE Trans. Electromagn. Compat., Vol. EMC-27, No. 1, Feb. 1985,pp.6-12
15、O.G. Hooijen, A Channel Model for the Residential Power Circuit Used as a Digital Communications Medium, IEEE Trans. Electromagn. Compat., Vol.40, No.4,
Nov．1998．pp．331-336
16、张明新，马宏锋，张英辉，李庆军，低压电力线载波通信中信号传输特性的研究，测控技术，2001年，第20卷第10期，pp．61-63
17、Heinz, Data Transmission on Low Voltage Power Distribution Lines Using Spread Spectrum Techniques, IEEE Trans., 1980, pp.236-239
18、R. M. Vines, H. J. Trussell, L. J. Gale and J. B. O' Neal, Jr., Noise on Residential Power Distribution Circuits, IEEE Trans. Electromagn. Compat., Vol. EMC-26, No.4, Nov.1984,pp.161-168
19、M.H.L. Chan, R. W. Donaldson, Amplitude, Width, and Interarrival Distributions for Noise Impulses on Intrabuilding Power Line Communication Networks, IEEE Trans. Electromagn. Compat., Vol. 33, No.3, Nov. 1989,pp.320-323
20、J. B. O'Neal, Jr., The Residential Power Circuit as a Communication Medium, IEEE Trans. Consumer Electron., Vol. Ce-32, No.3, Aug. 1986, pp.567-577
21、V. Degardin, M. Lienard, Classification and Characterization of Impulsive Noise on Indoor Power Line Used for Data Communications, IEEE Trans. Consumer Electron., Vol.48, No.4, Nov. 2002,pp.913-918
22、M. Zimmermann and K. Dostert, Analysis and Modeling of Impulsive Noise in Broad-Band Powerline Communications, IEEE Trans. Electromagn. Compat., Vol.44, No.1, Feb.2002,pp.250-258
23、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年第1期，35—42
24、M. Zimmermann and K. Dostert, A Multipath Model for the Power Channel, IEEE Trans. Commun., vol.50, No.4, Apr. 2002, pp.553-559
25、L. T. Tang, P. L. So, E. Gunawan, Y. L. Guan, S. Chen and T. T. Lie, Characterization and Modeling of In-Building Power Lines for High-Speed Data Transmission, IEEE Trans. Power Delivery, Vol. 18, No.1, Jan. 2003, pp.69-77
26、F.J. Canete, L. Diez, J. A. Cortes, and J. T. Entrambasaguas, Broadband Modeling of Indoor Power-Line Channels, IEEE Trans. Consumer Electron., Vol.48, No.1, Feb. 2002, pp.175-183
27、O. G. Hooijen, A Channel Model for the Low Voltage Power Line Channel; Measurement and Simulation Results, in Proc.1997 Int. Symp. Power-Line Communications and Its Applications, pp.51-56
28、J. Abad, A. Badenes and etc, Extending The Power Line Lan Up to the Neighborhood Transformer, IEEE Communications Magazine, Apr. 2003, pp.64-70
29、E. Biglieri, P. di Torino, Coding and Modulation for a Horrible Channel, IEEE Communications Magazine, May 2003, pp.92-98
30、H. Dai, H. V. Poor, Advanced Signal Processing for Power Line Communication, IEEE Communications Magazine, May 2003, pp. 100-107
31、李振玉，卢玉民，扩频选址通信，国防工业出版社，1988年9月第一版
32、F. J. Canete and erc, Modeling and Evaluation of the Indoor Power Line Transmission Medium, IEEE Communications Magazine, April, 2003, pp.34-40
33、刘恒，汪光森，王乘，OFDM、扩频通信技术在电力线通信中应用分析与仿真，继电器，2003年7月15日，第31卷第7期，pp．41-46
34、刘华玲，张保会，刘海涛，扩频通信、OFDM调制技术在电力线通信中的应用分析，继电器，2001年11月，第29卷第11期，pp．17-21
35、B.Sklar著，徐平平，宋铁成等译，数字通信，电子工业出版社，2002年9月第一版
36、E K. V. D. Gracht, R. W. Donaldson, Communicatio.n Using Pseudonoise Modulation on Electric Power Distribution Circuits, IEEE Trans. Commun., Vol.COM-33, No.9, Sep. 1985, pp.964-973
37、M. K. Song, S. C. Sakong and K. H. Tchah, Realization of Power Line Modem Using a Direct Sequence Spread Spectrum Technique, IEEE Trans. Consumer Electron., Vol.39, No.3, Aug. 1993, pp.646-652
38、A. M. J. Goiser, Direct-Sequence Spread-Spectrum Modem for Data Communications over Power-Lines, IEEE Trans., 1997, pp. 1052-1056
39、罗卫兵，孙桦，张捷，Systemview动态系统分析及通信系统仿真设计，西安电子科技大学出版社，2001年8月第一版