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FS水声遥控系统
引用本文:艾宇慧,苏龙滨,丁士圻.FS水声遥控系统[J].应用声学,1997,16(2):32-36.
作者姓名:艾宇慧  苏龙滨  丁士圻
作者单位:哈尔滨工程大学水声研究所!哈尔滨,150001,哈尔滨工程大学水声研究所!哈尔滨,150001,哈尔滨工程大学水声研究所!哈尔滨,150001
摘    要:本文介绍一种可实用的FS式编码的水声遥控系统,该系统采用9个频率点进行移频编码,可有效抗多途对译码的影响,编码设计能使遥控指令的码间距做得较大,通过自适应滤波器有效译码,可将误码率控制在希望值以下。理论分析和试验结果均表明,本系统误码率接近0,解码率1500m以内大于0.9,近距离大于0.96本系统已应用于水下物理场测量系统中。

关 键 词:水声遥控系统  移频编码  编码  误码率

FS underwater acoustic remote control system
Ai Yuhuei,Su Longbin and Ding Shiqi.FS underwater acoustic remote control system[J].Applied Acoustics,1997,16(2):32-36.
Authors:Ai Yuhuei  Su Longbin and Ding Shiqi
Institution:Department of Undermter Acoustical Engndering, Uniarsity of Harbin Engineering ,Harbin 150001;Department of Undermter Acoustical Engndering, Uniarsity of Harbin Engineering ,Harbin 150001;Department of Undermter Acoustical Engndering, Uniarsity of Harbin Engineering ,Harbin 150001
Abstract:In this paper, a FS(Frequency-Shift)underwater acoustic remote control sys tem is presented. Methods of FS coding and decoding are discussed. The FS code consists of multifrequency cw pulses in order to reject acoustic signal reflection, and is decoded by a new form of adaptive filter- Theoretical analysis and experiments show that the FS re mote control system has high rate of decoding and very low error-rate even under poor un derwater acoustic circumstances.
Keywords:Underwater acoustics remote control system  Frequency-shift coding
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