| 网络传感器阵列目标定距定向的影响因素研究 |
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| 引用本文： | 李明,曹福宝,姜春兰,王在成.网络传感器阵列目标定距定向的影响因素研究[J].北京理工大学学报,2014,34(2):162-165. |
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| 作者姓名： | 李明 曹福宝 姜春兰 王在成 |
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| 作者单位： | 北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081 |
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| 基金项目： | 爆炸科学与技术国家重点实验室（北京理工大学）基金资助项目（YBKT12-07） |
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| 摘 要： | 基于声阵列信号时延估计、双曲线目标定位方法，推导了平面任意三元阵目标定向、定距计算公式，并采用该公式对声传感器阵列定位应用中的时延估计误差、阵列孔径大小、阵元布放误差等因素造成的目标定距、定向误差进行了计算和分析研究. 计算结果表明:在同样的初始误差条件下，采用大孔径阵列可以显著降低定距及定向误差，且定向精度的需求比较容易满足而定距精度的需求较难满足.
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| 关 键 词： | 目标定向 声阵列 时延估计 |
| 收稿时间： | 2013/8/11 0:00:00 |
Influence of Several Factors on Network Sensor Array Target Orientation |
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| LI Ming,CAO Fu-bao,JIANG Chun-lan and WANG Zai-cheng.Influence of Several Factors on Network Sensor Array Target Orientation[J].Journal of Beijing Institute of Technology(Natural Science Edition),2014,34(2):162-165. |
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| Authors: | LI Ming CAO Fu-bao JIANG Chun-lan and WANG Zai-cheng |
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| Institution: | State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | A formula was introduced based on time delay estimation of the acoustic sensor array and hyperbolic localization technology for calculating the azimuth and distance of the target. Then, the relation of the target azimuth error and distance error with the time delay estimation error, aperture size of the sensor array and the error of the distance between each sensor was analyzed using the formula. The results show that in the same original conditions, using large aperture arrays can significantly reduce the azimuth error and distance error, and it is much easier to meet the precision need of azimuth than that of distance. |
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| Keywords: | target orientation acoustic sensor array time delay estimation |
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