基于二维压差矢量传感器的定向误差分析  

Analysis on orientation error of two-dimension differential pressure vector sensor

作　　者：李婧 韩鹏[1] 刘洋[1] 李杨[2] 檀虎[2] 

机构地区：[1]西北工业大学航海学院,陕西西安710072 [2]西北机电工程研究所,陕西咸阳712000

出　　处：《传感器与微系统》2013年第6期36-39,46,共5页Transducer and Microsystem Technologies

摘　　要：由于压差矢量传感器自身的结构和实际工程应用中,它的四基元制作工艺的不完全一致和自身的装配误差,导致水下目标定向时定向精度不准确。以二维压差矢量传感器为研究对象,分析了单个二维压差矢量传感器的结构和原理,在低噪声情况下采用相关性定向的方法实现目标的精确定向,同时分析二维矢量传感器产生的基元位置偏差与基元通道不一致性对目标方位估计的影响,并进行仿真,得出并验证影响矢量传感器方位估计的主要因素,方便方位估计的补偿研究。Due to structure of differential pressure vector sensor,and practical engineering applications,in consistency and assembly error of four-element production process,result in orientation precision of the underwater target is not accurate.Two-dimensional（2D） differential pressure vector sensor is studied as the object.The structure and principle of single 2D differential pressure vector sensor are analyzed.By using correlation orientational method,precise orientation of the target in the case of low-noise is achieved,simultaneously analyze influence of element position deviation and element channel inconsistency on DOA estimation generated by two-dimensional vector sensor.The simulation results show and verify that the main factors affecting vector sensor azimuth estimation,and it is convenient to study azimuth estimation compensation.

关 键 词：二维压差矢量传感器 目标方位估计 定向误差分析 误差补偿 

分 类 号：TB566[交通运输工程—水声工程]