高频信道模型的仿真与模拟
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摘要
本文主要讨论了高频信道的传播特性和高频信道模拟器的仿真与实现。在论文开始我们讨论了无线通信信道的传播特性和高频信道的传播特性，分析了高频信道的数学表述和统计特性，最后我们选择了Watterson高频通信模型作为本论文的仿真和模拟模型。这一模型主要考虑了高频通信信道的多径效应、多普勒频移、多普勒展宽及信道传输的瑞利衰落，根据这一模型特点，我们给出了仿真结构图和算法分析，并在计算机上进行了计算机仿真，获得了较理想的效果。在硬件设计上，我们选用了双CPU(Tms320C3x和Am186)系统作为我们的模拟硬件平台，充分利用了DSP的高速运算功能和AM186的协调控制功能，在此平台上实现了高频信道模拟器的设计。在论文最后，还讨论了在设计构成中遇到的一些问题以及一些算法研究。
HF channel simulation and characterization of HF channel is described in this paper. We discuss the characteristic of wireless channel and HF' s at the forepart of the paper and, analysis several typical model about HF channel, and consider the math representation and statistic characterization, after that we select Watterson HF channel model as the simulated model in this paper. Multipath Doppler shifT Doppler spread and Rayleigh fading in communication is principal considered in this channel model. According these points, Configuration and Arithmetic is presented, and Result which is simulated in computer is contented. Dual-Cpu system(Tms320C3x and Aml86) is selected as fareware environment of simulation, in which high-speed logic calculation of DSP(Tms320C3x) and controlling capacity of Aml86 is utilized well. Design of HF channel simulation is realized in the fareware system. At last , some question meeting in system design and some studying about Arithmetic is talked over in the paper.
HF channel simulation and characterization of HF channel is described in this paper. We discuss the characteristic of wireless channel and HF' s at the forepart of the paper and, analysis several typical model about HF channel, and consider the math representation and statistic characterization, after that we select Watterson HF channel model as the simulated model in this paper. Multipath Doppler shifT Doppler spread and Rayleigh fading in communication is principal considered in this channel model. According these points, Configuration and Arithmetic is presented, and Result which is simulated in computer is contented. Dual-Cpu system(Tms320C3x and Aml86) is selected as fareware environment of simulation, in which high-speed logic calculation of DSP(Tms320C3x) and controlling capacity of Aml86 is utilized well. Design of HF channel simulation is realized in the fareware system. At last , some question meeting in system design and some studying about Arithmetic is talked over in the paper.
引文
[1] 陆建勋．高频自适应瞬间通信体制的原理和发展展望．舰船电子．1995．第二期
[2] 陆建勋．瞬间通信的原理和应用．全国数字通信学术会议文集(上)1990：53—56页
[3] 戴耀森．短波数字通信自适应选频技术．浙江科学技术出版社．1992：1—8页
[4] S. Weizer, D. Almer. An Adaptive HF System and It's Computerized Performance Evaluation. 4th International Conference on HF Radio Systems and Techniques
[5] P.J.Laycock,M. Morrell,G. F. Gott and A. R. Ray. 高频频谱占用情况模型 第四届国际高频通信系统与技术会议录译文选集 1991．3：92-97
[6] G .F.Gott, S .Dutta and P.Doany. Analysis of HF interference with application to digital communications. Proc. IEEE, Part F Vol. 132 no. 7,1985
[7] Clack C. Watterson, John R. Juroshek and William D. Bensema. Experimental Confirmation of an HF Channel Model. IEEE Transactions on Communication Technology, Vol COM-18, No. 6, December 1970: 792-803P
[8] 陈跃，金力军．短波信道特性及模拟器的设计．第二届短波超短波通信学术会议论文集．中国宜昌 1991：279-285页
[9] 张贤达，保铮．通信信号处理．国防工业出版社．2000：40-93页
[10] A. V. Oppenheim, R. W. Schafer and John R. Buck．离散时间信号处理．刘树堂，黄建国译．西安交通出版社．2001：163-171，373-380，512-525，625- 647．
[11] R. Baines. The DSP Bottleneck. IEEE Communications Magazine. 1995(33), May:46-54P
[12] Sophocles J.Orfanidis.Signal Processing(影印版)．清华大学出版社1999：541-568，650-661P
[13] 沈其其，朱德生．短波通信．西安电子科技大学出版社1989：5-29页
[14] 宗孔德．多抽样率信号处理．清华大学出版社1996：9-15，21-24页
[15] TI公司. TMS320C3x User's Guide. 1997
[16] TI公司. TMS320C3x General Purpose Applications User's Guide. 1998
[17] TI公司. TMS320C31, TMS320LC31 Digital Signal Processors Data Sheet. 1999. 来自网站http://www. ti. com
[18] MathWorks 公司. Communications Toolbox User' s Guide. Matlab 软件
[19] Herrick, D.L. Lee. CHESS: A New Reliable High Speed HF Radio. Milcom '96 Mclean, VA, October 1996
[20] Wallace, M.A. HF Radio in Southwest Asia. IEEE Communications Magazine, January 1992
[21] Lee. J.C, Vn.C.K. Performance of transform domain adaptive digital filters. IEEE Trans. Acout Speech, Signal Processing 1986 34:499-510
[22] John G．Proakis．数字通信(第三版)．电子工业出版社，1998：680-689页，758-830页
[23] Theodore S．Rappaport．无线通信原理与应用．蔡涛，李旭，杜振民译．电子工业出版社，1999：203-210页，298-300页
[24] 祁玉生，邵世祥．现代移动通信系统．人民邮电出版社，1999：24-31页，254-258页
[25] 樊昌信，徐炳祥，詹道庸，吴成柯．通信原理．北京：国防工业出版社，1992：272—275页
[26] 贾世楼．信息理论基础．哈尔滨工业大学出版社，1986：280—282页
[27] John G.Proakis, Masoud Salehi. 现代通信—使用MATLAB. 刘树棠．西安交通大学出版社．2001：366页，370—376页
[28] 刘有恒．信号检测与估计．北京：人民邮电出版社，1989：124—128页
[29] 苏晓生．掌握MATLAB 6.0及工程应用．北京：科学出版社．2002
[30] Gott G.F, Dutta S and Doany P. Analysis of HF interference with application to digital communications. Proc IEE part F, vol 130 Nov 5, 1983
[31] 吴湘淇、聂涛编著 数字信号处理技术及应用 中国铁道出版社1985
[32] 王宏禹著 随机数字信号处理 科学出版社1998
[2] 陆建勋．瞬间通信的原理和应用．全国数字通信学术会议文集(上)1990：53—56页
[3] 戴耀森．短波数字通信自适应选频技术．浙江科学技术出版社．1992：1—8页
[4] S. Weizer, D. Almer. An Adaptive HF System and It's Computerized Performance Evaluation. 4th International Conference on HF Radio Systems and Techniques
[5] P.J.Laycock,M. Morrell,G. F. Gott and A. R. Ray. 高频频谱占用情况模型 第四届国际高频通信系统与技术会议录译文选集 1991．3：92-97
[6] G .F.Gott, S .Dutta and P.Doany. Analysis of HF interference with application to digital communications. Proc. IEEE, Part F Vol. 132 no. 7,1985
[7] Clack C. Watterson, John R. Juroshek and William D. Bensema. Experimental Confirmation of an HF Channel Model. IEEE Transactions on Communication Technology, Vol COM-18, No. 6, December 1970: 792-803P
[8] 陈跃，金力军．短波信道特性及模拟器的设计．第二届短波超短波通信学术会议论文集．中国宜昌 1991：279-285页
[9] 张贤达，保铮．通信信号处理．国防工业出版社．2000：40-93页
[10] A. V. Oppenheim, R. W. Schafer and John R. Buck．离散时间信号处理．刘树堂，黄建国译．西安交通出版社．2001：163-171，373-380，512-525，625- 647．
[11] R. Baines. The DSP Bottleneck. IEEE Communications Magazine. 1995(33), May:46-54P
[12] Sophocles J.Orfanidis.Signal Processing(影印版)．清华大学出版社1999：541-568，650-661P
[13] 沈其其，朱德生．短波通信．西安电子科技大学出版社1989：5-29页
[14] 宗孔德．多抽样率信号处理．清华大学出版社1996：9-15，21-24页
[15] TI公司. TMS320C3x User's Guide. 1997
[16] TI公司. TMS320C3x General Purpose Applications User's Guide. 1998
[17] TI公司. TMS320C31, TMS320LC31 Digital Signal Processors Data Sheet. 1999. 来自网站http://www. ti. com
[18] MathWorks 公司. Communications Toolbox User' s Guide. Matlab 软件
[19] Herrick, D.L. Lee. CHESS: A New Reliable High Speed HF Radio. Milcom '96 Mclean, VA, October 1996
[20] Wallace, M.A. HF Radio in Southwest Asia. IEEE Communications Magazine, January 1992
[21] Lee. J.C, Vn.C.K. Performance of transform domain adaptive digital filters. IEEE Trans. Acout Speech, Signal Processing 1986 34:499-510
[22] John G．Proakis．数字通信(第三版)．电子工业出版社，1998：680-689页，758-830页
[23] Theodore S．Rappaport．无线通信原理与应用．蔡涛，李旭，杜振民译．电子工业出版社，1999：203-210页，298-300页
[24] 祁玉生，邵世祥．现代移动通信系统．人民邮电出版社，1999：24-31页，254-258页
[25] 樊昌信，徐炳祥，詹道庸，吴成柯．通信原理．北京：国防工业出版社，1992：272—275页
[26] 贾世楼．信息理论基础．哈尔滨工业大学出版社，1986：280—282页
[27] John G.Proakis, Masoud Salehi. 现代通信—使用MATLAB. 刘树棠．西安交通大学出版社．2001：366页，370—376页
[28] 刘有恒．信号检测与估计．北京：人民邮电出版社，1989：124—128页
[29] 苏晓生．掌握MATLAB 6.0及工程应用．北京：科学出版社．2002
[30] Gott G.F, Dutta S and Doany P. Analysis of HF interference with application to digital communications. Proc IEE part F, vol 130 Nov 5, 1983
[31] 吴湘淇、聂涛编著 数字信号处理技术及应用 中国铁道出版社1985
[32] 王宏禹著 随机数字信号处理 科学出版社1998