海底声基阵大地坐标测量

声基阵是进行目标测量和定位的重要装备，而声基阵的海底坐标测量有广泛的应用场合。给出了一种基于时延测量的海底声基阵大地坐标测量的方法。在该方法中，声源在3个位置已知点上发射CW脉冲，利用声源发射和声阵接收的CW脉冲之间的时延获得空间中的3个声源发射点到阵元的距离，并以这3个声源发射点为圆心，以声源发射点到阵元的距离为半径作球面，得到的交点即为阵元的大地坐标。通过海上试验数据分析结果表明可以把该方法运用于实际的工程测量当中。

Measurement of Geodetic Coordinate of Seabed Acoustic Array

Acoustic array is a very important equipment for measurement and localization of object, and measurement of its seabed coordinate has abroad application. This paper puts forward a method of measurement of seabed acoustic array coordinate based on time delay. In the method, sound source sends CW pulse signal on three points with known coordinates. This method makes use of time delay of the CW pulse sent by acoustic source and received by array to measure the distance of the measuring point and array member. Using the measuring point as center, the distance between the measuring point and array member as the radius, it can get the intersection of spherical surface, which is the coordination of array member. The results of data analysis showed this method can be used to practical project measurement.