ADCP方向谱估计的倾斜修正算法研究

doi:10.3976/j.issn.1002-4026.2014.04.001

Abstract

Abstract:

Acoustic doppler current profiler (ADCP) is an instrument to measure seawater velocity at different depth. It can estimate sea surface wave directional spectrum with velocity measurement points array based on ADCP current measurement. When ADCP tilts, position offset of velocity measurement point occurs. An error will then appear for wave directional spectrum estimation, so measurement point correction is necessary to improve measurement accuracy. Simulation and data analysis indicate that directional spectrum estimation error depends on posture angle pitch and roll and ADCP setting depth. The algorithm considers pitch, roll and ADCP setting depth, so wave directional spectrum estimation precision is improved when ADCP tilts.

Key words: roll, ADCP, tilt correction, pitch, ADCP setting depth

CLC Number:

P716

ZHENG Wei, YANG Li, HUI Li, LIU Min, Wang Zhi. Tilt correction algorithm of ADCP wave directional spectrum estimation[J].SHANDONG SCIENCE, 2014, 27(4): 1-7.

References

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Tilt correction algorithm of ADCP wave directional spectrum estimation

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