基于相位变化率的无源定位法

无源定位技术有着广阔的应用前景，本文在现有单站无源定位方法的基础上，介绍了相位变化率定位法。该方法利用观测平台上两个相互正交的相位干涉仪接收目标辐射电磁波的相位获取目标的方向信息，利用对应的相位变化率获取目标的径向距离信息，从而实现对目标的实时高精度定位。文中还给出了观测平台飞行姿态变化情况下的定位表达式。仿真结果表明，该方法是一种发展前途较好的单站无源定位方法。

Passive Location Method Based on Phase Rate of Change

Technology of passive location has broad prospects in applications. In this paper, the single observer passive location method using phase rate of change is introduced based on existing methods. This new method can obtain the direction of the target with phase information of two orthogonal interferometers on the observer and the radial distance with the corresponding phase rate of change. Then the target can be located with high speed and precision. Some locating expressions are given when the flying posture of the observer is changed. Simulations show that this method is effective.