基于扩展卡尔曼滤波的浮标定位方法

Research of Buoy Location Calculation Method based on Extended Kalman Filter

由于浮标的随机漂移,在航空搜潜过程中,需要定期对浮标的位置进行更新。根据航空搜潜声纳浮标与飞机的相对方位信息,采用扩展卡尔曼滤波技术,分析了计算浮标位置的原理、方法,建立了相应的系统模型和仿真算法,从估计的相对位置误差和均方根误差两个方面,仿真分析了系统的误差性能。结果表明,该定位模型能够成功地跟踪浮标的位置,并具有较高的定位精度。

Because of the random drift of the buoy,its position needs updateing regularly in the course of the airborne anti-submarine. According ： to the mtormation of relative orientation from the airplane to airborne anti-submarine buoy,the mathematical model,adopting extended Kalman filtering technique,and simulation algorithm for calculating the buoy position are established in this paper. In respects of the relative position error and RMS error,the simulation results show theerror performance of this system.The buoy position can be tracked successfully and the considerable location precision is obtained by employing this method.