BDS-3 satellite ultra-fast clock correction forecasting method

The invention relates to a BDS-3 satellite ultra-fast clock correction forecasting method, which comprises the following steps of: 1, acquiring original ultra-fast clock correction data, and eliminating gross correction and clock jump existing in the clock correction; 2, performing primary correction processing on the preprocessed clock correction data to generate a corresponding primary correction sequence; 3, constructing a multi-core relevance vector machine clock correction forecasting model; 4, acquiring parameters of the multi-core relevance vector machine clock correction forecasting model, and outputting an optimal multi-core relevance vector machine clock correction forecasting model; and 5, predicting primary correction data of the clock correction by using the optimized multi-core relevance vector machine clock correction prediction model, and restoring a primary correction predicted value of the clock correction to obtain a real-time predicted value of the satellite clock correction. 一种BDS-3卫星超快速钟