Spacecraft escape trajectory intelligent planning method

Abstract

The invention discloses a spacecraft escape trajectory intelligent planning method, which comprises the steps of splitting a spacecraft long-period pursuit game problem into a plurality of short-period pursuit game sub-problems according to a rolling time domain strategy; in each short period, according to the spacecraft orbit state at the corresponding initial moment, a spacecraft pursuit problem optimization model is constructed, the optimal pursuit parameter for pursuit of the spacecraft is predicted and evaluated by using the completely trained deep neural network, and then an escape trajectory planning index function is updated according to the real-time orbit state and the predicted pursuit information. And obtaining the current optimal escape pulse maneuvering speed increment by using a sequential quadratic programming algorithm. The problems that in the prior art, solving is difficult, solving efficiency is low and result robustness is poor when the optimal escape strategy of the spacecraft pulse pursuit game problem is solved are solved.

Description

technical field [0001] The invention belongs to the field of artificial intelligence, and in particular relates to an intelligent planning method for spacecraft escape based on a deep neural network (DNN) and a rolling time-domain strategy. Background technique [0002] Spacecraft escape trajectory planning technology is a key technology for the escaped spacecraft to plan the escape trajectory to avoid potential threats and ensure its own space safety in response to the active approach threat of the pursuing spacecraft under the background of spacecraft pursuit and escape. Therefore, in the face of the deteriorating space environment, the development of efficient and intelligent spacecraft intelligent escape trajectory planning technology is an important means to protect our space assets and is of great significance to maintaining our country's space security. [0003] According to the propulsion mode of the spacecraft, the spacecraft pursuit game problem can be divided into...

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Problems solved by technology

[0004] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a method for intelligent planning of spacecraft escape trajectory based on deep neural network and rolling time domain strategy, so as to solve the problem of J2 perturbation pulse escape trajectory planning in the prior art. Problems with low calculation efficiency, poor accuracy, and problems that do not meet the actual needs of the project

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