Introduction - If you have any usage issues, please Google them yourself
For a motion model, the kalman filter model is established for simulation. The real position and velocity of the moving target at the initial moment are known, and the initial state value used by the kalman filter is known. The steady-state kalman solution of the problem is further analyzed and the problem is directly simulated by steady-state kalman filter (filter).
Matlab source code is provided, the code has comments and drawings, very detailed.