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单矢量振动传感器的地震动信号方位估计
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作者 宋小鹏 梁昱 +2 位作者 张丛 刘涛 薛晨阳 《火力与指挥控制》 CSCD 北大核心 2013年第5期18-21,共4页
地震动信号的方位估计对于无人值守系统具有重要意义,传统的地震动信号方位估计在传感器阵列的基础上通过相应的算法处理来实现。MEMS矢量振动传感器由于可以获得地震动信号传播过程中的矢量信息,因此,通过单个矢量传感器便可实现一定... 地震动信号的方位估计对于无人值守系统具有重要意义,传统的地震动信号方位估计在传感器阵列的基础上通过相应的算法处理来实现。MEMS矢量振动传感器由于可以获得地震动信号传播过程中的矢量信息,因此,通过单个矢量传感器便可实现一定范围内的方位估计并提出了一种通过旋转MEMS矢量传感器坐标轴扩展定向范围的方法,实验结果表明该方法系统结构简单、灵敏度高,方位估计角度误差平均小于5°,应用前景广阔。 展开更多
关键词 MEMS 矢量振动传感器 地震动信号 方位估计
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Study on the influence of the subsurface buoy's vibration on the vector sensor due to ocean current
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作者 师俊杰 Sun Dajun Lv Yunfei Lan Hualin Mei Jidan 《High Technology Letters》 EI CAS 2014年第3期223-229,共7页
Subsurface buoy systems,especially equipped with the vector sensor,have more and more extensive applications in military and civilian regions.However,their acoustic performances are constrained by the vibration result... Subsurface buoy systems,especially equipped with the vector sensor,have more and more extensive applications in military and civilian regions.However,their acoustic performances are constrained by the vibration resulting from the unavoidable ocean current in some degree.The influence of such vibrations is quantitatively analyzed by means of modeling the simplified models of two deployment configurations involving the positive buoyant buoy and neutral buoy system.The corresponding formulas are deduced respectively for the deployment configuration buoy systems in the motion state firstly.Then the simulation software is developed and some numerical simulations are put up via the Runge-Kutta method.The simulation results and theoretical analysis indicate that the neutral buoy will be an excellent design protocol in engineering application in comparison with the positive buoyant buoy. 展开更多
关键词 subsurface buoy system vector sensor ocean current neutral buoy
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