This paper USES a square array to locate a target of helicopter and deals with location theory and its algorithm, as well as analyzing location accuracy.
该文利用平面正四边形阵列对直升机目标进行定位，讨论了定位系统的原理及其算法，并对定位精度进行了分析。
The method uses a fictitious acoustic sensor technique, and, with fewer acoustic sensors, can realize the same location performance as that obtained by using a primaryaccessory square array.
该方法采用虚拟传声器技术，用较少的传声器能达到主 从式正四方形阵的定位效果，从而解决了单四方形阵不能远距离定位的问题。
The method uses a fictitious acoustic sensor technique, and, with fewer acoustic sensors, can realize the same location performance as that obtained by using a primaryaccessory square array.
该方法采用虚拟传声器技术，用较少的传声器能达到主 从式正四方形阵的定位效果，从而解决了单四方形阵不能远距离定位的问题。
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