基于多径信号到达频差的水下运动源距离估计

IF 0.2 Q4 ACOUSTICS
W. Park, Ki-Man Kim, Y. Son
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引用次数: 1

摘要

:在测量水下运动源的辐射噪声时,声源与接收机之间的距离信息是一个重要的评价因素,设定了接收机位置、运动源深度、速度等测量标准。虽然有一种利用互相关作为寻找水下运动源距离的方法,但这种方法需要一个时间同步过程。本文提出了通过比较理论计算的多径信号的多普勒频差与接收信号估计的多普勒频差来估计距离的方法。所提出的方法不需要单独的时间同步过程。仿真结果表明,该方法的测距误差比传统方法减小了约95%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Range estimation of underwater moving source using frequency-difference-of-arrival of multipath signals
: When measuring the radiating noise of an underwater moving source, the range information between the acoustic source and the receiver is an important evaluation factor, and the measurement standards such as a receiver position, a moving source depth and a speed are set. Although there is a method of using the cross correlation as a method of finding the range of the underwater moving source, this method requires a time synchronization process. In this paper, we proposed the method to estimate the range by comparing the Doppler frequency difference of the theoretically calculated multipath signal with the Doppler frequency difference of the multipath signal estimated from the received signal. The proposed method does not require a separate time synchronization process. Simulations were performed to verify the performance, and the ranging error of the proposed method reduced by about 95 % than that of the conventional method.
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来源期刊
CiteScore
0.60
自引率
50.00%
发文量
1
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