基于Chebyshev混沌序列的正交宽带调制解调方法

doi:10.16180/j.cnki.issn1007-7820.2020.09.010

Abstract

Abstract:

An orthogonal wideband signal modulation and demodulation method based on Chebyshev chaotic sequence is proposed in this paper to improve the reliability of underwater acoustic communication. The method is based on the environment and propagation characteristics of ocean underwater acoustic channel. The statistical properties of Chebyshev chaotic sequence are close to environmental noise, and it has sharp autocorrelation and broadband characteristics. Based on the properties, Chebyshev chaotic sequence is used as information carrier and synchronization signal in the proposed method. The received signal is demodulated by Euclidean distance classifier. Experimental results show that the method effectively suppresses the frequency selective fading and inter-symbol interference caused by multi-path propagation of the underwater acoustic channel, and achieves reliable underwater acoustic communication under low SNR conditions. The simulation results verify that the communication method has good communication performance on the underwater acoustic channel with multipath effect in the signal-to-noise ratio environment above -10 dB.

Key words: underwater acoustic channel, orthogonal wideband modulation and demodulation, Chebyshev chaotic sequence, Euclidean distance classifier, multi-path effect, underwater acoustic communication

CLC Number:

TN929.3

JIANG Yu,REN Longping,BAI Xingyu,OU Hongfei. The Orthogonal Wideband Signal Modulation and Demodulation Method Based on Chebyshev Bhaotic Sequence[J].Electronic Science and Technology, 2020, 33(9): 56-62.

Figures/Tables 11

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References 17

[1]	周锋, 尹艳玲, 乔钢. 猝发混合扩频水声隐蔽通信技术[J]. 声学学报, 2017,42(1):39-49.
	Zhou Feng, Yin Yanling, Qiao Gang. Burst mode spread spectrum technology for covert underwater acoustic communication[J]. ACTA Acustica, 2017,42(1):39-49.
[2]	邱政, 蒋楚欧, 潘元璋. 一种用于水声通信的快速自适应均衡器设计[J]. 电子科技, 2014,27(12):147-149.
	Qiu Zheng, Jiang Chuou, Pan Yuanzhang. Design of a fast adaptive equalizer for underwater acoustic communication[J]. Electronic Science and Technology, 2014,27(12):147-149.
[3]	Diamant R, Lampe L. Low probability of detection for underwater acoustic communication:A review[J]. IEEE Access, 2018(6):19099-19112.
[4]	Stojanovic M, Preisig J. Underwater acoustic communication channels:Propagation models and statistical characterization[J]. IEEE Communications Magazine, 2009,47(1):84-89.
[5]	Stojanovic M. Recent advances in high-speed underwater acoustic communications[J]. IEEE Journal of Oceanic Engineering, 1996,21(2):125-136.
[6]	Sendra S, Lloret J, Jimenez J M, et al. Underwater acoustic modems[J]. IEEE Sensors Journal, 2016,16(11):4063-4071.
[7]	杜利刚, 杨利, 苏建才. 基于CAZAC序列的水声通信技术研究[J]. 电子科技, 2013,26(5):142-145.
	Du Ligang, Yang Li, Su Jiancai. CAZAC sequence-based underwater acoustic communication technology research[J]. Electronic Science and Technology, 2013,26(5):142-145.
[8]	吴华, 吴学智, 闫肃. 水声通信技术与网络研究进展[J]. 通信技术, 2018,51(7):141-146.
	Wu Hua, Wu Xuezhi, Yan Su. Underwater acoustic communication technology and network[J]. Communications Technology, 2018,51(7):141-146.
[9]	许肖梅. 水声通信与水声网络的发展与应用[J]. 声学技术, 2009,28(6):811-816.
	Xu Xiaomei. Development and applications of underwater acoustic communication and networks[J]. Technical Acoustics, 2009,28(6):811-816.
[10]	赵宝珍, 申晓红, 王海燕, 等. 水声通信中的混沌跳频技术研究[J]. 声学技术, 2005,24(3):137-139.
	Zhao Baozhen, Shen Xiaohong, Wang Haiyan, et al. Chaotic frequency hopping in underwater communication[J]. Technical Acoustics, 2005,24(3):137-139.
[11]	倪笑园. 基于FH/MFSK的水声通信研究[D]. 杭州:浙江大学, 2014.
	Ni Xiaoyuan. Research on underwater acoustic communication based on FH/MFSK[D]. Hangzhou: Zhejiang University, 2014.
[12]	殷敬伟. 水声通信原理及信号处理技术[M] 北京: 国防工业出版社, 2011.
	Yin Jingwei. Principle of underwater acoustic communication and signal processing technology[M]. Beijing: National Defense Industry Press, 2011.
[13]	张歆, 彭纪肖, 李国梁. 采用FSK调制的直接序列扩频水声通信技术[J]. 西北工业大学学报, 2007,25(2):177-180.
	Zhang Xin, Peng Jixiao, Li Guoliang. A simple, reliable and robust Direct-Sequence Spread-Spectrum(DSSS) underwater acoustic communication receiver based on FSK modulation[J]. Journal of Northwestern Polytechnical University, 2007,25(2):177-180.
[14]	Ren H P, Bai C, Kong Q, et al. A chaotic spread spectrum system for underwater acoustic communication[J]. Physica A:Statistical Mechanics & its Applications, 2017,478(77):77-92.
[15]	Liu L, Li J, Zhou L, et al. An underwater acoustic direct sequence spread spectrum communication system using dual spread spectrum code[J]. Frontiers of Information Technology & Electronic Engineering, 2018,19(8):972-983.
[16]	王鑫. 混沌序列扩频水声通信技术研究[D]. 哈尔滨:哈尔滨工程大学, 2015.
	Wang Xin. Study on chaotic sequence spread spectrum underwater acoustic communication technology[D]. Harbin:Harbin Engineering University, 2015.
[17]	雷利华, 马冠一, 蔡晓静, 等. 基于Chebyshev映射的混沌序列研究[J]. 计算机工程, 2009,35(24):4-6.
	Lei Lihua, Ma Guanyi, Cai Xiaojing, et al. Study of chaotic sequence based on Chebyshev mapping[J]. Computer Engineering, 2009,35(24):4-6.

项目	幅度增益	延迟/ms
直达波	1.0	0
第1个多途到达波	0.6	50
第2个多途到达波	0.3	100
第3个多途到达波	0.2	130

The Orthogonal Wideband Signal Modulation and Demodulation Method Based on Chebyshev Bhaotic Sequence

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