Fusion method and device for multi-source satellite data

Abstract

The invention discloses a multi-source satellite data fusion method and device, comprising: setting a cache link list for storing data, respectively continuously acquiring satellite data received by a plurality of receiving devices, and storing the satellite data in the cache link list As at least a part of the cache data; according to the difference between each first satellite data previously received by one receiving device among the plurality of receiving devices and each second satellite data received later by another receiving device among the plurality of receiving devices The byte length similarity of each first satellite data and each second satellite data are determined as fusion data. The multi-source satellite data fusion method and device of the present invention can solve the problem of fusing the received multi-source satellite data and preventing a large amount of redundant data from appearing in the output satellite data while reducing data loss when receiving satellite data question.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a multi-source satellite data fusion method and device. Background technique [0002] In the Beidou data receiving device, the satellite data is often received in the form of the cooperation of the command aircraft and the dedicated network line. Among them, the commander equipment receives satellite data through the air link; the network dedicated line is connected to the satellite main station, and receives satellite data in the form of UDP data packets. [0003] Since the commander equipment is easily affected by the surrounding environment, such as occlusion and wireless signal interference, the situation of data loss is relatively serious. In addition, the UDP network also suffers from loss. It can be seen that any data access device or system has data loss, incompleteness, etc., so that 100% data integrity cannot be achieved, so a multi-source method (that is, a me...

AI Technical Summary

Problems solved by technology

[0003] Since the commander equipment is easily affected by the surrounding environment, such as occlusion and wireless signal interference, the situation of data loss is more serious

In addition, the UDP network is also lost

It can be seen that any data access device or system has data loss, incompleteness, etc., so that 100% data integrity cannot be achieved, so a multi-source method (that is, a method in which multiple receiving devices receive data at the same time) is often used. Receive satellite data to achieve reliable and stable Beidou data services

[0004] Although receiving data through multiple sources will greatly improve the reliability of the system, due to the multiple sources of data, it also brings about the phenomenon of data duplication, resulting in a large amount of redundant data, which brings serious problems to the system. a lot of uncertainty and a lot of misjudgment by jammers

[0005] In view of the data duplication problem in the prior art due to the multi-source way of receiving Beidou data, it is necessary to provide a method and device that can perform data fusion on multi-source data to output unique and robust Beidou data

Images