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A Disturbance Suppression Method for Spaceborne Moving Antenna

A kind of disturbance suppression and antenna technology, which can be used in motor vehicles, attitude control, adaptive control and other directions, and can solve problems such as blurring and distortion of remote sensing images.

Active Publication Date: 2020-08-14
BEIJING INST OF CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the antenna movement has a very significant impact on the attitude of the whole star, which will lead to blurred and distorted optical remote sensing images

Method used

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  • A Disturbance Suppression Method for Spaceborne Moving Antenna
  • A Disturbance Suppression Method for Spaceborne Moving Antenna
  • A Disturbance Suppression Method for Spaceborne Moving Antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0095] Concrete method of the present invention is as follows:

[0096] (1) Analyze the installation, structure and quality characteristics of the antenna

[0097] Using structural analysis software (such as Ansys, etc.) to analyze the installation, structure, and quality characteristics of the antenna, the results are as follows:

[0098] The quality and structure analysis results of part A1 are as follows:

[0099] Table 1 Antenna A1 part quality parameter table

[0100]

[0101] The quality and structure analysis results of part A2 are as follows:

[0102] Table 2 Antenna A2 part quality parameter table

[0103]

[0104] (2) Antenna movement is smooth

[0105] take k 0 =0.1,k 1 =0.2,k 2 =10,a Lmt =0.2° / s 2 , ω Lmt =2.5° / s, regardless of the relative motion of the target, considering α r (t) ≡ 180° The antenna rotation angle and speed planning results under the condition of fixed angle deviation are as follows figure 2 shown.

[0106] (3) Calculation of an...

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Abstract

The invention relates to a satellite borne motion antenna disturbance inhibition method, and belongs to the satellite borne motion accessory disturbance inhibition technical field. The method can inhibit the disturbance influences on the satellite attitude by the antenna motions, and mainly aims to a dual-shaft motion antenna on the satellite. The inhibition method uses a motion smooth method anda moment of momentum theorem to calculate the disturbance moment of the motion antenna, thus introducing a feedforward compensation moment on the satellite body so as to inhibit the antenna disturbance influences. Compared with a direct driving method that contains no feedforward moment compensation, the method can effectively inhibit the antenna motion impact influences, thus improving the satellite attitude stability level.

Description

technical field [0001] The invention relates to a high-precision satellite-borne motion antenna disturbance suppression method, which belongs to the technical field of disturbance suppression of satellite-borne motion accessories. This method can suppress the disturbing effect of the antenna movement on the attitude of the satellite, and this method is mainly aimed at the dual-axis moving antenna on the satellite. The invention adopts the motion smoothing method and the momentum moment theorem to calculate the disturbance moment of the moving antenna, thereby introducing the feedforward compensation moment to the star body to suppress the disturbance influence of the antenna. Compared with the traditional direct drive method without feed-forward torque compensation, the method of the invention can effectively suppress the impact impact of the antenna movement and improve the attitude stability of the satellite. Background technique [0002] At present, high-resolution remot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04G05D1/08
CPCB64G1/244G05B13/042
Inventor 陆栋宁雷拥军牟小刚李丽君刘洁陈超王晋鹏赵江涛李晶心
Owner BEIJING INST OF CONTROL ENG
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