用递推的极大似然法对系统辨识，对具有随机噪声的二阶系统的模型辨识

两个轨道计算的子程序，四元素乘积计算法和空间轨道动力学方程递推的扩展卡尔曼滤波算法。-Calculation subroutine two tracks, the four elements of the product of calculation and orbital dynamics space equation recursive extended Kalman filter algorithm.

辨识升力系数以及阻力系数，运用递推最小二乘法及遗忘因子法最小二乘法进行系统辨识-Identify the lift coefficient and the drag coefficient, and use the recursive least squares method and the forgetting factor method least squares method to identify the system