Fusion Location Based on Multi Acoustic Vector Sensor
刘迪 1刘京生 2李光 1刘云飞 1谢奕 1冯杰1
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作者信息
1. 中国电子科技集团公司第三研究所,北京 100015
2. 陆军装备部驻北京地区第二军事代表室,北京 100012
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摘要
矢量传声器在目标声源方位(Direction of Arrival,DOA)估计方面具有天然的优势性能.在单矢量传声器实现目标声源DOA估计的基础上,利用交叉定位的思想推导多矢量传声器融合实现目标定位的模型,并给出模型的总体最小二乘解.针对奇异方位角影响估计精度的问题,利用圆概率偏差确定有效方位角后再进行融合定位.仿真分析与定位验证实验的结果表明,该方法可以实现目标声源位置估计,在消声室环境下具有较好的定位精度,有效性和实用性较强.
Abstract
Acoustic vector sensor has a natural advantageous in the field of Direction of Arrival (DOA) estimation. Based on the DOA estimation of the target source by single acoustic vector sensor,this paper deduces the Fusion Location model of multi acoustic vector sensors by using the idea of cross location,and provides the total least square solution of the model. Given that the existing influences of the singular DOA estimation on the localization accuracy,the effective DOA results are obtained by using circular error probable before localization. The simulation analysis and localization experiments were implemented,and the result shows that the provided method can realize the location estimation of the target sound source. It has good localization accuracy in the semi-anechoic room environment,with strong effectiveness and practicability.
关键词
矢量传声器/定位/方位估计/几何精度因子
Key words
acoustic vector sensor/localization/direction of arrival estimate/geometrical dilution of precision
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