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本文介绍一种可实用的FS（Freyuency－Snift）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．
This paper presents a practical FS (Frequence-Snift) type of underwater acoustic remote control system, the system uses 9 frequency points for frequency-shift encoding, which can effectively resist the impact of multi-channel decoding, encoding can make remote control commands Of the code spacing done larger, through the adaptive filter effective decoding, bit error rate can be controlled below the desired value. Theoretical analysis and experimental results show that the system error rate close to 0, the decoding rate greater than 0.9 within 1500m, close to greater than 0.96 The system has been used in underwater physics measurement system.