通信信号的数字化解调和调制识别技术
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摘要
调制解调和调制识别技术广泛应用于军事通信和民用通信。通信信号的调制识别和参数提取对敌方信号进行通信干扰、侦察视听非常重要。通信信号的这些技术同样可以应用在信号验证、干扰识别、提取信号频率等方面。
本文首先介绍了几种常用的数字通信的调制和解调技术,在此基础上基于FPGA设计和实现了2PSK、ASK、QPSK、2FSK、8FSK、2DPSK、QDPSK等7种数字通信信号的解调器,并将其7种不同的解调器应用于同一个设计模块中,实现其通用解调器的效果,给出了解调器的设计方法和误码率测试结果,并分析对比实际结果与理论结果。其次介绍了数字通信信号的调制特征参数提取和基于决策树分类器的调制识别技术,基于DSP的调制识别技术的编程和实现,给出了对2ASK、2FSK、8FSK、2PSK/2DPSK、QPSK/QDPSK等分类识别结果,并对结果做出相应的分析。最后讨论了几种针对数字通信信号的干扰技术,统计了干扰效果。将以上三种技术集成后,应用于通信和通信对抗实验仪中,并且进行了系统调试和测试,实践结果论证了其设计的合理性。
Modulation and demodulation recognition technology is widely used in military communication and civil communications. Communication signals’modulation recognition and parameters extraction is very important for communication interference, reconnaissance, audio-visual of the enemy signal These techniques of communication signals can also be used in signal validation, interference identification and extraction signal frequency, etc.
This paper introduces several common modulation and demodulation of digital communications technology, on this basis, design and implementation of FPGA-based 2PSK, ASK, QPSK, 2FSK, 8FSK, 2DPSK, QDPSK 7 kinds of digital communication signals’demodulator, and the 7 different demodulator used in the same design module, to achieve its universal demodulator effect, and analyzing and comparing actual results with the theoretical results. Then introduces the digital communication signal modulation feature extraction and modulation recognition technology base on decision tree classifier, DSP-based modulation recognition technology, programming and implementation, given to the classification and recognition results Such as 2ASK, 2FSK, 8FSK, 2PSK/2DPSK, QPSK/QDPSK.Finally, discussing interference technology about several digital communication signal, statistics of the interference effect. After integrating the above three techniques, used in communications and communications countermeasure experimental instrument, and conducted a system debugging and testing, practical results demonstrate the rationality of its design.
本文首先介绍了几种常用的数字通信的调制和解调技术,在此基础上基于FPGA设计和实现了2PSK、ASK、QPSK、2FSK、8FSK、2DPSK、QDPSK等7种数字通信信号的解调器,并将其7种不同的解调器应用于同一个设计模块中,实现其通用解调器的效果,给出了解调器的设计方法和误码率测试结果,并分析对比实际结果与理论结果。其次介绍了数字通信信号的调制特征参数提取和基于决策树分类器的调制识别技术,基于DSP的调制识别技术的编程和实现,给出了对2ASK、2FSK、8FSK、2PSK/2DPSK、QPSK/QDPSK等分类识别结果,并对结果做出相应的分析。最后讨论了几种针对数字通信信号的干扰技术,统计了干扰效果。将以上三种技术集成后,应用于通信和通信对抗实验仪中,并且进行了系统调试和测试,实践结果论证了其设计的合理性。
Modulation and demodulation recognition technology is widely used in military communication and civil communications. Communication signals’modulation recognition and parameters extraction is very important for communication interference, reconnaissance, audio-visual of the enemy signal These techniques of communication signals can also be used in signal validation, interference identification and extraction signal frequency, etc.
This paper introduces several common modulation and demodulation of digital communications technology, on this basis, design and implementation of FPGA-based 2PSK, ASK, QPSK, 2FSK, 8FSK, 2DPSK, QDPSK 7 kinds of digital communication signals’demodulator, and the 7 different demodulator used in the same design module, to achieve its universal demodulator effect, and analyzing and comparing actual results with the theoretical results. Then introduces the digital communication signal modulation feature extraction and modulation recognition technology base on decision tree classifier, DSP-based modulation recognition technology, programming and implementation, given to the classification and recognition results Such as 2ASK, 2FSK, 8FSK, 2PSK/2DPSK, QPSK/QDPSK.Finally, discussing interference technology about several digital communication signal, statistics of the interference effect. After integrating the above three techniques, used in communications and communications countermeasure experimental instrument, and conducted a system debugging and testing, practical results demonstrate the rationality of its design.
引文
[1]冯小平,李鹏,杨绍全编著.通信对抗原理(第一版).西安:西安电子科技大学出版社. 2009.
[2]郭黎利编著.通信对抗应用技术(第一版).哈尔滨:哈尔滨工程大学出版社. 2007.
[3]樊昌信,詹道庸,徐炳祥,吴成柯等编著.通信原理(第四版).北京:国防工业出版社.1995.
[4]胡广书编著.数字信号处理理论、算法与实现.北京:清华大学出版社.1997.
[5]王金龙,沈良,任国春,菜跃明,陈瑾,吴起晖编著.无线通信系统的DSP实现.北京:人民邮电出版社.2002
[6]李玉柏,彭启棕编著.软件数字下变频的实现与算法.通信学报.2000,44-49.
[7]陈鼎鼎译著.现代通信干扰原理与技术.北京:电子工业出版社.2005
[8]刘颖王春悦赵蓉编著.数字通信原理与技术.北京:北京邮电大学出版社1999
[9]沈其聪侯群李有根编著.数字通信原理.北京:机械工业出版社2004
[10]沈振元聂志泉赵雪荷编著.通信系统原理.西安:西安电子科技大学出版社1993
[11]冯玉珉张树京编著.通信系统原理.北京:清华大学出版社2003
[12]张辉曹丽娜编著.现代通信原理与技术.西安:西安电子科技大学出版社2002
[13]李俊编著.基于决策理论的软件无线信号调制样式自动识别[J]. 2002. 23(4). 50~54
[14]吕杰,张胜付等编著.基于软件无线电架构的通信信号自动调制识别.无线电工程.2000,2:28-30.
[15] E.E.Azzouz,A.K.Nandi.俞仁涛等译.通信信号调制的自动识别.中国人民解放军57394部队. 1998
[16]王红星,曹建平编著.通信侦察与干扰技术.北京:国防工业出版社2005
[17]姚富强编著.通信抗干扰与实践.北京:电子工业出版社2008
[18]王诚,吴继华,范丽珍等编著.Altera FPGA/CPLD设计(基础篇).北京:人民邮电出版社.2005
[19]褚振勇,齐亮,田红心等编著.FPGA设计及应用.西安:西安电子科技大学出版社.2006.12
[20]龚剑,朱亮编著.MATLAB 5.X入门与提高.北京:清华大学出版社.2000:105-122.
[21]刘敏,魏玲编著.MATLAB通信仿真与应用.北京国防工业出版社.2001:298-300,308-311.
[22] Vaughan R.G., Scott N.L., White D.R. The Theory of Bandpass Sampling. IEEE Trans. On SP. 1991, 39(9), 1973-1984.
[23] Azzouz E.E., Nandi A.K. Automatic identification of digital modulation types. Signal Processing.1995, 47(1),55-69.
[24] Nandi A.K., Azzouz E.E. Automatic analogue modulation recognition. Signal Processing.1995, 46(2),211-222.
[25] Zahirniak D.R., Sharpin D.L., Fields T.W. A Hardware-efficient Multirate DigitalChannelized Receiver Architecture. IEEE Trans. On AES. 1998, 34(1), 137-151.
[2]郭黎利编著.通信对抗应用技术(第一版).哈尔滨:哈尔滨工程大学出版社. 2007.
[3]樊昌信,詹道庸,徐炳祥,吴成柯等编著.通信原理(第四版).北京:国防工业出版社.1995.
[4]胡广书编著.数字信号处理理论、算法与实现.北京:清华大学出版社.1997.
[5]王金龙,沈良,任国春,菜跃明,陈瑾,吴起晖编著.无线通信系统的DSP实现.北京:人民邮电出版社.2002
[6]李玉柏,彭启棕编著.软件数字下变频的实现与算法.通信学报.2000,44-49.
[7]陈鼎鼎译著.现代通信干扰原理与技术.北京:电子工业出版社.2005
[8]刘颖王春悦赵蓉编著.数字通信原理与技术.北京:北京邮电大学出版社1999
[9]沈其聪侯群李有根编著.数字通信原理.北京:机械工业出版社2004
[10]沈振元聂志泉赵雪荷编著.通信系统原理.西安:西安电子科技大学出版社1993
[11]冯玉珉张树京编著.通信系统原理.北京:清华大学出版社2003
[12]张辉曹丽娜编著.现代通信原理与技术.西安:西安电子科技大学出版社2002
[13]李俊编著.基于决策理论的软件无线信号调制样式自动识别[J]. 2002. 23(4). 50~54
[14]吕杰,张胜付等编著.基于软件无线电架构的通信信号自动调制识别.无线电工程.2000,2:28-30.
[15] E.E.Azzouz,A.K.Nandi.俞仁涛等译.通信信号调制的自动识别.中国人民解放军57394部队. 1998
[16]王红星,曹建平编著.通信侦察与干扰技术.北京:国防工业出版社2005
[17]姚富强编著.通信抗干扰与实践.北京:电子工业出版社2008
[18]王诚,吴继华,范丽珍等编著.Altera FPGA/CPLD设计(基础篇).北京:人民邮电出版社.2005
[19]褚振勇,齐亮,田红心等编著.FPGA设计及应用.西安:西安电子科技大学出版社.2006.12
[20]龚剑,朱亮编著.MATLAB 5.X入门与提高.北京:清华大学出版社.2000:105-122.
[21]刘敏,魏玲编著.MATLAB通信仿真与应用.北京国防工业出版社.2001:298-300,308-311.
[22] Vaughan R.G., Scott N.L., White D.R. The Theory of Bandpass Sampling. IEEE Trans. On SP. 1991, 39(9), 1973-1984.
[23] Azzouz E.E., Nandi A.K. Automatic identification of digital modulation types. Signal Processing.1995, 47(1),55-69.
[24] Nandi A.K., Azzouz E.E. Automatic analogue modulation recognition. Signal Processing.1995, 46(2),211-222.
[25] Zahirniak D.R., Sharpin D.L., Fields T.W. A Hardware-efficient Multirate DigitalChannelized Receiver Architecture. IEEE Trans. On AES. 1998, 34(1), 137-151.