Target positioning method and device based on multiple satellites, electronic equipment and medium

Abstract

The invention relates to a target positioning method and device based on multiple satellites, electronic equipment and a computer readable medium. The method comprises: according to a positioning request of a target object, obtaining a plurality of direction-finding positioning data sets of a plurality of satellites for the target object and a plurality of time-frequency difference data of the plurality of satellites, wherein the direction-finding positioning data sets comprise direction-finding positioning data of a plurality of periods; training a machine learning model according to the plurality of direction-finding positioning data sets and the plurality of time-frequency difference data to generate a multi-satellite positioning model; and inputting the plurality of direction-finding positioning data sets into the multi-satellite positioning model to obtain the accurate position of the target object. According to the target positioning method and device based on the multiple satellites, the electronic equipment and the computer readable medium, the positioning long-period data of the multiple satellites are fused, the incidence relation among the long-period data of the multiple satellites of the same target is fully mined, decision fusion is achieved, and the target positioning precision is improved.

Description

technical field [0001] The present disclosure relates to the field of computer information processing, in particular, to a multi-satellite-based target positioning method, device, electronic equipment, and computer-readable medium. Background technique [0002] Spaceborne passive positioning technology has received widespread attention since its birth. With the development of modern satellite technology, various positioning systems such as single-satellite direction-finding positioning and dual-satellite time difference / frequency difference positioning have been derived. However, the traditional single positioning system is difficult to break through its own limitations. At the same time, the influence of factors such as satellite elevation, orbital distribution, TDOA, FDOA, detection system error, and satellite motion speed, and the massive data obtained from long-period observations have brought huge challenges to improving the accuracy of multi-satellite positioning. Spe...

AI Technical Summary

Problems solved by technology

[0005] In the process of satellite system positioning, factors such as system errors of spaceborne positioning equipment, detection environment interference noise, space constraints of multi-satellite networking, and inaccurate estimation of traditional positioning parameters will adversely affect the positioning results.

Images