| 声相关海流剖面(ACCP)测量的流速估值方法 |
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| 引用本文： | 郭纪捷,荀俊姑,徐正高.声相关海流剖面(ACCP)测量的流速估值方法[J].海洋技术,2001,20(1):93-96. |
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| 作者姓名： | 郭纪捷 荀俊姑 徐正高 |
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| 作者单位： | |
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| 摘 要： | 声相关海流剖面（ACCP）测量技术对水体回波信号进行空间相关处理来估计流速值，与声学多普勒海流剖面仪（ADCP）相比ACCP的工作频工，更适合深海测流应用，ACCP测量系统对回波信号进行时空相关处理，根据相关函数的位置来估计被测水团的流速值，ACCP从信号中提取流速值要运用参数估计技术，本文介绍了采用极大似然法和最小二乘法进行流速参数的处理方法，给出一些典型流速情形的数值计算结果。
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| 关 键 词： | 参数估计 声相关海流剖面测量技术 水体 流速 回波信号 极大似然法 最小二乘法 |
Velocity Estimation in the Measurement of Acoustic Correlation Current Profiler (ACCP) |
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| Guo Jijie,Xun Jungu,Xu Zhenggao.Velocity Estimation in the Measurement of Acoustic Correlation Current Profiler (ACCP)[J].Ocean Technology,2001,20(1):93-96. |
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| Authors: | Guo Jijie Xun Jungu Xu Zhenggao |
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| Institution: | Guo Jijie Xun Jungu Xu Zhenggao |
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| Abstract: | Velocity of current in the sea can be measured using method of time - space correlation of acoustic back - scattering signals from seawater mass. According to the position of correlation function peak the ACCP equipment estimates the velocity of a moving water volume. Parameter estimation is successfully applied to measure the velocity. In this paper two methods ? maximum like - hood estimate and least equare method ? are introduced as velocity estimate method. Also some results of computer simulation are showed and explained. |
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| Keywords: | acoustics time - space correlation measurement of current profiler parameter estimation |
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