Novel anti-interference attitude control circuit resolving system

Abstract

The invention relates to a novel anti-interference attitude control circuit resolving system. The hardware part of the system is composed of an embedded microprocessor, a storer unit, a reset unit, a communication unit, an expansion power supply unit, a power supply unit, a clock unit, an expansion I / O unit and a debugging unit. An anti-interference attitude control algorithm contained in the algorithm part of the system relates to a disperse interference observer and a feedback controller, the disperse interference observer conducts real-time estimation and counteraction on interference such as execution vibration which can be modeled and exists in the system firstly, and then the feedback controller correspondingly restrains interference such as spiral environment torque which can not be modeled and exists in the system. According to the software and hardware integrated type attitude control circuit resolving system, a hardware circuit is simple in structure, communication can be achieved conveniently and quickly, the control algorithm can be used for counteraction and restraining on different types of interference, and attitude control accuracy and stability of the system can be improved. The system is especially suitable for tasks such as high-resolution earth observation and remotely-sensed imaging in the aerospace field.

Description

technical field [0001] The invention relates to a novel anti-interference attitude control circuit solution system, which is suitable for high-precision control of the attitude system of a spacecraft. Background technique [0002] With the development trend of high precision, long life and high reliability of spacecraft, the mechanism of spacecraft is becoming more and more complex, and the requirements of space missions require higher and higher accuracy of attitude measurement and control. put forward higher requirements. After the spacecraft is in orbit, it needs to maintain a predetermined orientation or orientation with a certain accuracy relative to the inertial system or other reference systems. During the flight in orbit, the spacecraft will be affected by various external space environment disturbance moments, such as gravity gradient moment, aerodynamic moment, solar radiation pressure moment, space debris impact moment and magnetic moment, etc.; there are also di...

AI Technical Summary

Problems solved by technology

In the existing ground semi-physical simulation system, the attitude determination module, the attitude control module and the actuator part are connected in a wired way, which will bring a lot of inconvenience during the ground verification. The wired way is complex and prone to wiring errors, which increases debugging Difficulty; at the same time, in order to simulate the real environment of the spacecraft, it is necessary to use equipment such as an air flotation table. When using a wired connection, key information cannot be conveniently transmitted to the remote host computer, and more effective testing and verification cannot be performed.

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