基于相位差变化率方法的单站无源定位技术

无源定位技术有着广阔的应用前景 ,文中在现有单站无源定位方法的基础上 ,介绍了相位差变化率定位法。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差获取目标的方向信息 ,利用对应的相位差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交叉定位。还给出了观测平台水平直线匀速飞行且无飞行姿态变化条件下的定位表达式。仿真结果表明 ,该方法是一种极具发展前途的单站无源定位方法

Research on Single Observer-Passive Location Technology Based on Method of Phase Difference Rate of Change

Technology of passive location has broad prospects for application. The single observer-passive location method of phase difference rate of change is introduced based on existing methods. We can obtain the direction of the target with phase difference information of two orthogonal interferometers on the observer and the radial distance with corresponding phase difference rate of change information. Then the target can be located with high speed and precision. Some locating expressions are given when the observer is flying along a horizontal beeline without any posture change. Simulations show that this method is effective.