Introduction - If you have any usage issues, please Google them yourself
The source code of the Kalman filter program written by VB. Every time the data source changes, the sub-function is triggered. After the initial definition, the filter value is obtained, and then the optimal deviation at the K + 1 time is automatically calculated, and then assigned to text1, which is the optimal The deviation always changes, and this iteration is triggered and driven by changes in the data source.