gps 轨迹重现 使用gps 数据可以在 地图上 重现你走过的gps 路径-GPS track to reproduce the use of GPS data can be reproduced on the map gps path you walk

针对GPS观测的数据进行卡尔曼滤波平滑处理，提高了解算的精度并绘制出三个方向的滑动示意图(According to the data of GPS observation, the Calman filter is processed to improve the precision of calculation, and the sliding diagram of three directions is plotted)