浅海航道水深实时监测方法研究  

Research on real-time method to monitor the water depth in the channel of shallow sea

作　　者：张勋[1] 许文海[2] 唐文彦[1] 董丽丽[1] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001 [2]大连海事大学,大连116026

出　　处：《仪器仪表学报》2006年第z1期361-363,共3页Chinese Journal of Scientific Instrument

摘　　要：提出了一种利用航道侧面多传感器对浅海航道水深进行实时监测的方法。该方法根据发射换能器安装间距来确定测量精度,克服了传统水深测量仪器测量精度受声速变化影响较大的缺陷。并根据水声信道中多途效应时延估计模型,利用时延估计技术和互相关运算进行了计算机模拟。模拟结果表明,该方法对监测浅海航道水深是可行的。Applying multi-sensors fixed in the channel sides,a new real-time method to monitor the channel's water depth in the shallow sea is presented.Based on the installing space of emitting transducer,the measuring accuracy can be ensured.And the way overcomes the defects of the measuring accuracy of the traditional measuring instruments affected by the change of acoustic velocity.According to the time delay estimation model of multi-path effects in the underwater acoustic channel,computer simulation is carried out.During the process,time delay estimation technology and cross correlating operation are applied.The results demonstrate that the way to monitor the water depth in the channel of shallow sea is feasible.

关 键 词：水深测量 多途效应 时延估计 

分 类 号：TH7-55[机械工程—仪器科学与技术]