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首页> 外文会议>Conference on unattended ground, sea and air sensor technologies and applications XI; 20090413-16; Orlando, FL(US) >Sound source localization using distributed elevated acoustic sensors
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Sound source localization using distributed elevated acoustic sensors

机译：使用分布式高架声学传感器进行声源定位

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摘要

Detecting and localizing impulsive acoustic sources in the daytime using distributed elevated acoustic sensors with large baseline separations has distinct advantages over small ground-based arrays. There are generally two reasons for this: first, during the daytime, because of more direct and less encumbered propagation paths, signal levels are generally larger at altitude than near the ground. Second, larger baselines provide improved localization accuracy. Results are reported from a distributed array of acoustic sensors deployed during an experiment near Bourges, France during June of 2008. The distributed array consisted of microphones and GPS receivers attached to the tether lines of three widely separated aerostats. The sound sources were various impulsive devices. Results from the measurements are presented and discussed. Localization errors (GPS accuracy, propagation calculation, and aerostat motion, etc) are discussed. Possible ways to improve the localization accuracy are suggested.
机译：与具有较小基线的阵列相比，使用具有较大基线间距的分布式高架声传感器在白天检测和定位脉冲声源具有明显的优势。通常有两个原因：首先，在白天，由于传播路径更直接且受其影响较小，因此海拔高度的信号电平通常比地面附近的信号电平大。其次，较大的基线可提高定位精度。报告的结果来自于在2008年6月在法国布尔日附近进行的一项实验中部署的声传感器的分布式阵列。该分布式阵列由麦克风和GPS接收器组成，这些麦克风和GPS接收器连接到三个相互独立的浮空器的系绳上。声源是各种脉冲设备。提出并讨论了测量结果。讨论了定位误差（GPS精度，传播计算和浮空器运动等）。建议了提高定位精度的可能方法。

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