This paper established a planar acoustic passive localization model, it could eliminate the disturbance of the effective sound velocity when using TDOA to position distant targets, designed the general structure of the position system, proposed a simple method to design time difference calculating circuit.
建立了一种平面波声被动定位模型,在利用TDOA方法定位远距离目标时,可消除有效声速的影响。
And their various locating properties under the condition of the effective sound velocity variation are analyzed.
基于声传播的平面波模型，采用向量分析方法导出了十字阵和正四面体阵的测向公式，分析了两者在有效声速变化条件下不同的定位性能；结果表明，对正四面体阵，采用合适的算式，可在方位估计中避开有效声速的影
It could eliminate the disturbance of the effective sound velocity when using the system to p.
在利用这种系统定位远距离目标时,可消除有效声速的影响。