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Onboard attitude compensation method and system for thrust vector deviation of deep space probe

A deep space probe and thrust vectoring technology, which is applied to the propulsion system devices of space navigation aircraft, aircraft, and space navigation equipment, etc., can solve problems such as the field of deep space exploration that cannot be applied, reduce fuel consumption, and correct the deviation of thrust direction. , the effect of prolonging life

Active Publication Date: 2021-03-02
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

This method can only be adapted to the orbit control of spacecraft with high-precision orbit determination conditions, and cannot be applied in the field of deep space exploration

Method used

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  • Onboard attitude compensation method and system for thrust vector deviation of deep space probe
  • Onboard attitude compensation method and system for thrust vector deviation of deep space probe
  • Onboard attitude compensation method and system for thrust vector deviation of deep space probe

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Embodiment 1

[0053] The present invention proposes an onboard attitude compensation method for thrust vector deviation of a deep-space probe, with the purpose of reducing the deviation of the thrust direction during orbit control of the deep-space probe, improving orbit control accuracy, and saving fuel consumption.

[0054] According to the onboard attitude compensation method of a deep space probe thrust vector deviation provided by the present invention, such as Figure 1-2 shown, including:

[0055] Step M1: Calculate the attitude compensation correction amount during orbit control according to the result of the engine thrust direction calibration on the ground;

[0056] Step M2: Inject the correction amount of attitude compensation during the orbit control period into the device, and compensate the thrust direction deviation of the spacecraft thruster, so as to improve the orbit change accuracy.

[0057] Preferably, said step M1 includes:

[0058] Step M1.1: According to the results...

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Abstract

The invention provides an onboard attitude compensation method and system for thrust vector deviation of a deep space probe. The method comprises the steps: M1, calculating the attitude compensation correction during orbit control according to a result of engine thrust direction calibration; M2, the attitude compensation correction amount in the orbit control period is injected to a device to be implemented. The method is used for compensating the thrust direction deviation of the spacecraft thruster so as to improve the orbital transfer precision.

Description

technical field [0001] The invention relates to the field of attitude dynamics, in particular to a method and system for on-board attitude compensation of thrust vector deviations of deep space probes. Background technique [0002] In order to achieve the goals of breaking away from the gravity of the earth, entering the cruising orbit or entering the inter-satellite transfer orbit, re-entering the planet, and flying around the star, the deep space probe needs to change its orbit multiple times to meet the requirements of saving fuel and correcting the accuracy of orbiting. At the same time, in key orbital changes such as re-entry into the atmosphere and planetary capture, there is usually only one chance to change orbits, and high orbital control accuracy is required to ensure follow-up missions. During the planet capture phase, the probe needs to be ignited and decelerated. The deviation of the ignition direction is very likely to cause the probe to fail to form an orbit, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/24B64G1/40
CPCB64G1/244B64G1/40
Inventor 吕旺王伟褚英志朱新波方宝东信思博
Owner SHANGHAI SATELLITE ENG INST
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