Design of multistatic sonar space-time code detection signal and time reversal copy-correlation detection technology

Sheng Xue-Li; Lu Jia; Ling Qing; Xu Jiang; Dong Wei-Jia

doi:10.7498/aps.63.054303

Abstract

A space-time code (STC) detection signal is designed for multistatic sonar to distinguish the multiple access echoes in the shallow water, and a time reversal (TR) copy-correlation detection method is presented for solving the problem of multi-path sub-channel differences when the vertical array is oblique. STC detection signal has a good orthogonality through modulating with pseudo-random signals, can distinguish multiple access target echoes while combating with sub-channel attenuation. The vertical array affected by current is oblique, its multi-path sub-channel differences causing signals from different sub-channels can not focus on the receiving end, so the array gain decreases. Meanwhile, it causes resolution to decline and the error rate of signal judgment to rise. Channel training signal is designed to estimate the sub-channel multipath environment, and the best matched detection signal for sub-channel differences is got through virtual time reversal mirror (VTRM) with the estimated channels and the received signal being detected by TR copy-correlation. Simulation results of tristatic sonar (two transmitters and one receiver) show that the SPC detection signal and TR copy-correlation can meet the requirements of multistatic sonar detection and distinguish the multiple access echoes in low SIR and complex channel environment. The best matched detection signal is got through VTRM (virtual time reversal mirror) with the estimated channels, and the received signal is detected by TR copy-correlation. Simulation results of tristatic sonar (two transmitters and one receiver) show that the STC detection signal and TR copy-correlation can meet the requirements of multistatic sonar detection and distinguish the multiple access echoes in low SIR environment.

Keywords:

STC detection signal /
TR copy-correlation detection /
multi-path sub-channel differences /
distinguishing the multiple access echoes

Authors and contacts

1.
Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;
2.
College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China;
3.
Science and Technology on Complex Ship Systems Simulation Laboratory, Beijing 100161, China
Funds: Project supported by State key Laboratory of Ocean Engineering (Shanghai Jiao Tong University), China (Grant No.1211), and the Science and Technology on Underwater Acoustic Laboratory, China (Grant No. 9140C200801210C2001).

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[22]	Lu J, Su L B, Yin J W, Zhang X 2012 3rd International Symposium on Artificial Intelligence, JSAI-ISAI 2011, Takamatsu, Japan, December 1, 2011-November 2, 2012, p97

Cited By

[1]	Zhao B Q, Che Y G 2009 Tech. Acoust. 28 1 (in Chinese) [赵宝庆, 车永刚 2009 声学技术 28 1]
[2]	Gao J, Hou W M, Liu Y T, Cai H Z 2008 Tech. Acoust. 27 418 (in Chinese) [高洁, 侯卫民, 刘云涛, 蔡惠智 2008 声学技术 27 418]
[3]	Zou J W, Sun D J 2012 Acta Armamentarii 31 364 (in Chinese) [邹吉武, 孙大军 2010 兵工学报 31 364]
[4]	Zou J W 2011 Ph. D. Dissertation (Harbin: Harbin Engineering University) (in Chinese) [邹吉武 2011 博士学位论文(哈尔滨:哈尔滨工程大学)]
[5]	Yao Y, Zhang M M, Yuan J 2012 Tech. Acoust. 31 310 (in Chinese) [姚瑶, 张明敏, 袁骏 2012 声学技术 31 310]
[6]	Hui J, Wang Z J, Hui J Y, He W X 2009 Acta Phys. Sin. 58 5491 (in Chinese) [惠娟, 王自娟, 惠俊英, 何文翔 2009 58 5491]
[7]	Gao B, Yang S E, Piao S C 2012 Acta Phys. Sin. 61 054305 (in Chinese) [高博, 杨士莪, 朴胜春 2012 61 054305]
[8]	Hui J Y, Sheng X L 2011 Marine Navigation Systems (Vol. 1) (Harbin: Harbin Engineering University Press) p60 (in Chinese) [惠俊英, 生雪莉 2011 水下声信道(第1版)(哈尔滨:哈尔滨工程大学出版社)第60页]
[9]	Zhang T W, Yang K D, Ma Y L, Li X G 2010 Acta Phys. Sin. 59 3295 (in Chinese) [张同伟, 杨坤德, 马远良, 黎学刚 2010 59 3295]
[10]	Yin J W, Hui J Y, Guo L X 2008 Acta Phys. Sin. 57 1735 (in Chinese) [殷敬伟, 惠俊英, 郭龙祥 2008 57 1753]
[11]	Ying Y Z, Ma L, Guo S M 2011 Chin. Phys. B 20 054301
[12]	Liu S Z, Qiao G, Yin Y L 2013 Acta Phys. Sin. 62 144303 (in Chinese) [刘凇佐, 乔钢, 尹艳玲 2013 62 144303]
[13]	Wang C, Yu Y J, Li X F, Liang G Q 2010 Acta Phys. Sin. 59 6319 (in Chinese) [王驰, 于瀛洁, 李醒飞, 梁光强 2010 59 6319]
[14]	Wang H Q, Chen Y, Zhao Z J 2011 Space Time Code Technology In 多天线 Systems (Vol. 1) (Beijing: 科学出版社 Press) p35 (in Chinese) [王海泉, 陈颖, 赵知劲 2011 多天线系统中的空时码技术(第1版)(北京:科学出版社)第35页]
[15]	Tirkkonen O, Boariu A, Hottinen A 2000 IEEE 6th International Symposium on Spread Spectrum Techniques and Applications, Parsippany, NJ, USA, September 6-8, 2000, p429
[16]	Yin J W, Hui J Y, Wang Y L, Hui J 2007 Acta Phys. Sin. 56 5915 (in Chinese) [殷敬伟, 惠俊英, 王逸林, 惠娟 2007 56 5915]
[17]	Yu Y, Zhou F, Qiao G 2012Acta Phys. Sin. 61 234301 (in Chinese) [于洋, 周峰, 乔钢 2012 61 234301]
[18]	Chen J Y, Wu G Q, Ma L 2006 Acta Acustica 31 316 (in Chinese) [陈剑云, 吴国清, 马力 2006 声学学报 31 316]
[19]	Peng D Y, Zeng J, Li H F, Liu H J, Zhao W Y, Gao T F 2009 Acta Acustica 34 396 (in Chinese) [彭大勇, 曾娟, 李海峰, 刘海军, 赵文耀, 高天赋 2009 声学学报 34 396]
[20]	Zhao H F, Yan L M, Zou L N 2008 Tech. Acoust 27 64 (in Chinese) [赵航芳, 阎丽明, 邹丽娜 2008 声学技术 27 64]
[21]	Yin J W 2007 Ph. D. Dissertation (Harbin: Harbin Engineering University) (in Chinese) [殷敬伟 2007 博士学位论文(哈尔滨: 哈尔滨工程大学)]
[22]	Lu J, Su L B, Yin J W, Zhang X 2012 3rd International Symposium on Artificial Intelligence, JSAI-ISAI 2011, Takamatsu, Japan, December 1, 2011-November 2, 2012, p97

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Vol. 63, Issue 5 - 2014-03-05

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