摘要
基于矢量水听器记录的质点振速信号,研究了浅海声场垂直振速与水平振速的相关特性,理论与仿真结果表明记录的垂直振速与水平振速的相关系数是矢量水听器俯仰角度的函数,矢量水听器不发生俯仰时二者的相关系数约为零。基于上述特点,提出了一种利用矢量水听器记录信号自适应校正矢量水听器俯仰姿态的方法,实验结果表明,该方法能有效校正矢量水听器俯仰姿态。
Based on the particle velocity signals collected with vector hydrophones,the correlation characteristics of vertical particle velocity and horizontal particle velocity were studied.The theoretical and simulative results show that the correlation coefficient of the recorded vertical particle velocity and the recorded horizontal particle velocity is a function the pitch angle of the vector hydrophone.The correlation coefficient is nearly zero when the vector hydrophone doesn＇t pitch.Based on such a characteristic,an adaptive method of revising vector hydrophone pitch by the recorded particle velocities was proposed in this paper.The experimental results show the validity of the method.
出处
《声学学报》
EI
CSCD
北大核心
2011年第2期215-220,共6页
Acta Acustica
基金
国家自然科学基金重点项目(10734100)
