Acoustic Velocity Measurement in Seawater Based on Phase Difference of Signal

摘要：

In this paper, FFT theory is used for realizing the phase measurement of signals. A new approach of acoustic velocity measurement in seawater based on phase difference is proposed. To deal with the phase ambiguity, our current study found an improved approach, which is based on two-frequency signal. The experiment compares the measurement results of phase difference with time difference. The results verify the effectiveness of the phase difference acoustic velocity measurement.

关键词： Acoustic velocity measurement Phase difference Time difference Two-frequency signal Precision.

作者: Chen Jian Zhao Shen Huang Zhigang Qiao Chunjie

作者单位: College of Mechatronics Engineering and Automation,National University of Defense Technology Changsha 410073,Hunan,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 901-904

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）