Time alignment method and system for multi-satellite data real-time fusion

The invention provides a multi-satellite data real-time fusion time alignment method and system, and belongs to the field of information transmission and processing. According to the method, input data are managed in a data queue mode, and time synchronization in each calculation period is guaranteed under the condition that time delay exists in inter-satellite data. The method has the following characteristics: 1) the problems of asynchronous fusion data time sequence and poor precision caused by the fact that a plurality of single-satellite processing results cannot be strictly and synchronously sent to a multi-satellite fusion single machine due to the influence of factors such as data transmission, single-satellite camera imaging, target detection and link time delay are solved; 2) the method is reliable and easy to implement, important parameters can be injected and changed, and the occupied computing resources are small; and 3) the method can dynamically adjust the threshold according to the real time d