Using two hyperbolas (three receivers) the system can obtain 2d target position, while using at minimum three hyperboloids (four receivers) the system can achieve full 3d target locating.

使用二个双曲线(三个接收机)系统能获得2d目标位置，当使用最少三个双曲面(四个接收机)系统能实现完整的3d立体目标定位。

youdao

Using two hyperbolas (three receivers) the system can obtain 2d target position, while using at minimum three hyperboloids (four receivers) the system can achieve full 3d target locating.

使用二个双曲线(三个接收机)系统能获得2d目标位置，当使用最少三个双曲面(四个接收机)系统能实现完整的3d立体目标定位。

youdao