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作 者:董明荣[1] 张彤[1] 许学忠[1] 李家武[1] 张敏[1] 梁旭斌[1]
机构地区:[1]西北核技术研究所,西安710024
出 处:《系统仿真学报》2011年第5期897-901,共5页Journal of System Simulation
摘 要:被动声定位技术是空中炸点探测的一种有效手段。采用三个立体五元阵构建了被动声定位系统,使用各个基阵的方向线异面交会并取三角形重心作为目标位置结果,对立体五元基阵的定向性能和三基阵定位系统的定位性能进行了误差仿真。仿真结果表明立体五元阵和正三角形构型三基阵定位系统都具备全向的定位性能。三基阵定位系统定距精度高,定向精度比单基阵稍高,可用于空中炸点的定向和定距。The passive acoustic location is an effective means to detect the aerial blast points.A passive acoustic location system based on three pyramid arrays consisting of five microphones,regards the junction of the noncoplanar directional lines of every array as the target location.This junction is the triangular barycenter.The direction error of a pyramid array consisting of five microphones and the location error of this three-Array system were simulated.The simulation results indicate that the pyramid array consisting of five microphones and the three-Array location system of regular triangle structure do not have blind space.The three-array location system has higher distance measurement precision and has a slightly higher direction precision than an array's.Therefore,the three-array location system can be applied in the direction and distance measurement of the aerial blast points.
关 键 词:被动声定位 到达时间差 方位角 俯仰角 误差仿真
分 类 号:TP391.9[自动化与计算机技术—计算机应用技术]
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