用于简单的GPS仿真，四颗卫星定位，利用卡尔曼滤波降低随机误差-For GPS simulation, four satellite using Kalman filtering to reduce random errors

基于卡尔曼滤波和粒子滤波的简单比较，用于高机动目标时时定位，以减少精度损失来换取目标跟踪定位时时性。-Relatively simple Kalman filter and particle filter-based positioning for high maneuvering targets time to time, in order to reduce the loss of precision target tracking in exchange for sex time to

利用卡尔曼滤波，进行简单的实际问题处理，体现卡尔曼滤波的作用。(Calman filtering is used to deal with simple practical problems, reflecting the role of Calman filtering.)