Low-orbit satellite precision orbit determination strategy supported by machine learning

Abstract

The invention discloses a low-orbit satellite precision orbit determination strategy supported by machine learning. The low-orbit satellite precision orbit determination strategy is specifically implemented according to the following steps: defining an orbit determination strategy set as a strategy space of the low-orbit satellite precision orbit determination strategy supported by machine learning; selecting four types of characteristics of observation, satellite, orbit and space environment as characteristics of a machine learning training sample; defining an orbit determination quality function as a label used for machine learning; taking the features of the orbit determination strategy set and the machine learning training sample as input, learning the features by using a label and adopting an automatic supervised learning algorithm to obtain a machine learning model of an orbit determination strategy; and obtaining an intelligent precise orbit determination strategy according to the machine learning model of the orbit determination strategy. According to the low-orbit satellite precision orbit determination strategy supported by machine learning, the precision orbit determination strategy drawing accuracy under complex observation conditions can be improved, and the use efficiency of a current kinetic model and observation data is improved to the maximum extent.

Description

technical field [0001] The invention belongs to the intersection field of aerospace measurement and control and artificial intelligence technology, and specifically relates to a low-orbit satellite precision orbit determination strategy supported by machine learning. Background technique [0002] Modern precision satellite orbit determination is a system engineering that includes various technologies such as tracking measurement, data processing, optimal estimation, and orbit dynamics forecasting. Position speed, acceleration, etc. At present, satellite precise orbit determination mainly improves the accuracy of orbit determination by improving various dynamic models and improving observation accuracy. However, the limitations of different models and the engineering constraints in the measurement greatly increase the complexity of the precise orbit determination process. Therefore, the process of precise satellite orbit determination requires experts with a lot of experien...

AI Technical Summary

Problems solved by technology

Although the reliability of the precise orbit determination strategy supported by expert experience is relatively high, the period for forming effective experience is relatively long, and observations need to meet relatively high conditions

Images