利用最小二乘算法实现对三维平面的拟合，部分实现了追踪测速迭代松弛算法，包含飞行器飞行中的姿态控制，如侧滑角，倾斜角，滚转角，俯仰角。- Least-squares algorithm to fit a three-dimensional plane, Partially achieved tracking speed iterative relaxation algorithm, It comprises aircraft flight attitude control, such as slip angle, tilt angle, roll angle, pitch angle.