测角测距信息下的双机协同高精度定位算法

High Precision Algorithm of Dual-aircraft Cooperative Locating with Angle and Distance Information

针对现有双机协同定位仅采用测角信息来解析求解误差较大的问题,提出基于测角和测距信息的双机协同高精度定位方法。利用现有飞行器中的导航定位传感器,采用粗精两级定位模式,粗定位采用传统的几何解析方法提供较为准确的初始解,精定位采用非线性迭代优化方法获得目标位置的最优解,并进行一系列仿真验证。仿真结果表明,测角测距信息下的协同定位方法能够获得较高的协同定位精度。

Aiming at the big error of the existing dual-aircraft cooperative locating algorithm caused by only based on the angle information,a high precision dual-aircraft cooperative locating algorithm based on the angle and distance information is proposed.The algorithm makes full use of the existing navigation sensors in the aircraft,adopting the coarse and precision two-stage positioning model.The coarse positioning uses the traditional geometric analysis method to acquire the initial value,and the precision positioning uses the nonlinear iterative optimization method to obtain the optimal solution of the target location.Carry out simulation verifications.Simulation results show that dual-aircraft cooperative locating algorithm based on the angle and distance measurement information can achieve higher precision.