远场空中炸点三基阵被动声学定位技术研究

摘要在工业与军事方面研究中，对于空中的爆炸点定位一直是研究重点，无论是对于烟花空中炸点的坐标检测还是导弹的定向爆破都在自身领域中占据重要地位，对于新型号产品的改良与应用具有决定性的意义。对于空间炸点的定位方法有很多，但仍然有很多需要改进的方面，国内外一直在开展新式测量方法与误差控制方面的研究。28663
本论文基于空中炸点被动声学三文定位的原理，重点针对三个立体传声器阵列构成的空中炸点定位系统进行多基阵信息融合方法仿真研究，利用几何手法在各基阵检测输出的方位角和高低角基础上，采用异面直线取重心方法获取炸点坐标。同时，本论文还着重研究了角度测量误差及基阵位置误差对最终炸点定位结果的影响，在仅考虑角度测量误差以及同时考虑基阵位置误差与角度测量误差的不同情况下，进行了大量仿真实验和结果分析，得出了有益的结论，为实际的炸点定位系统设计及实现提供了依据。
关键词空中炸点定位角度测量误差阵元位置误差被动声学探测
毕业论文设计说明书外文摘要
Title The aerial blast point passive acustic positioning technology research of three array
Abstract In the industrial and military research, the point positioning of air explosion has been forced on for a long time, not only in directional blasting of fireworks exploding in the air point but also the exploding position of missile occupy an important position in their own fields, which has the decisive significance for the improvement and application of new products.There is a lot of method for the spatial burst point positioning , but so far there is not a truly accurate positioning measurement method for the new measuring method and error control research at home and abroad.
This paper is based on the air blown 3D passive acoustic positioning principle, focusing on for three stereo microphone array which is composed of air fried point positioning system for multi array information fusion simulation , using geometric techniques in the azimuth and elevation angle of the array detection output on the basis, the use of lines in different planes from center of gravity method obtain the explosion point coordinate.At the same time, this paper also focuses on the effect of angle measurement error and location error of eventually blow point positioning result, when considering the angle measurement error and the array position error under different conditions,.During the study ,there were a large number of simulation experiments and some useful results of the analysis,which provides a basis for actual burst point positioning system design and implementation.
Keywords Aerial blast localization Angle measurement error Element position error Passive acoustic localization
目次
1 引言 1
1.1 课题背景与意义1
1.2 当前研究现状2
1.3 本文章节安排2
2 空中炸点被动声学定位技术研究 4
2.1 到达时间差法4
2.2 波束形成法10
2.3 高分辨率谱估计法13
2.4 三文角度交叉定位法 16
3 多基阵空中炸点声定位方法仿真与误差分析 20
3.1 三基阵定位系统建立20
3.2 仅考虑测角误差时仿真结果分析20
3.3 包含测角误差及基阵误差时仿真结果分析 22
结论 25
致谢 26
参考文献27
1 引言
1.1 课题背景与意义
对于空中炸点的定位技术的研究，已经有多年历史，在过去几年，利用麦克风阵列确定声源位置的风潮兴起，声源定位技术已经成为许多麦克风阵列应用的关键。比如交互会议，高质量录音，以及电脑游戏。而在军事方面则体现在对空中导弹爆点位置确定精确度的进一步要求。在工业方面，同样应用广泛，如烟花的炸点模拟与探测并借此进行烟花质量的检测等，但这依然是有一个有挑战的问题。远场空中炸点三基阵被动声学定位技术研究:http://www.youerw.com/tongxin/lunwen_23596.html