Smooth driving control method of satellite antenna

A satellite antenna and stable technology, applied in the field of satellite communication, can solve problems such as excessive angular rate and system instability, and achieve the effect of fast and smooth driving and strong environmental adaptability

Active Publication Date: 2016-02-03
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology

[0006] The technology of the present invention solves the problem: overcomes the deficiencies of the prior art, provides a stable drive control method for satellite antennas, avoids the system instability problem caused by excessive angular velocity at the moment of antenna startup, and designs a reasonable antenna replacement satellite drive control The scheme is completely suitable for antennas with large moment of inertia, and realizes the fast and stable driving of antennas in motion when changing satellites

Method used

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  • Smooth driving control method of satellite antenna
  • Smooth driving control method of satellite antenna
  • Smooth driving control method of satellite antenna

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Embodiment

[0056] Preset primary rate V_first=3° / s, secondary rate V_Second=8° / s and final rate V_Limit=15° / s, primary rate rotation time T 1 =1s, two-stage speed rotation time T 2 =1s, the driving amount of antenna angle θ=100°. figure 2 It is a comparison diagram between the driving control method of the present invention and the existing control method. Among the figure, the solid line is the drive control method diagram of the present invention, the dotted line is the existing constant speed control method diagram, and the dashed line is the speed linear increase control method diagram, wherein the constant speed is set to the maximum angular velocity in the fixed constant speed method 15° / s, the angular acceleration in the rate linear increase control method is set to 0.2° / s 2 , the maximum angular rate is limited to 15° / s.

[0057] figure 2 The first segment is the first-level rate V_first=3° / s, the second segment is the second-level rate V_Second=8° / s, and the third segment ...

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Abstract

The invention relates to a smooth driving control method of a satellite antenna. The method comprises the following steps of firstly, calculating an angle driving quantity Theta of the antenna according to a target angle of the antenna, judging whether the angle driving quantity Theta is greater than a primary angle, directly driving the antenna to complete driving if the angle driving quantity Theta is not greater than the primary angle, otherwise carrying out primary angle driving of the antenna; secondly, calculating remaining angle driving quantity, comparing the remaining angle driving quantity with a secondary angle, directly driving the antenna to complete driving if the remaining angle driving quantity is smaller than the secondary angle, otherwise carrying out secondary angle driving of the antenna; and finally, calculating the remaining angle driving quantity, and directly driving the antenna to complete driving. According to the method, the antenna rotation is controlled by means of three-stage driving rate, the antenna can be rapidly driven to reach the target angle, moreover, the problem of system instability caused by overlarge angular rate when the antenna is instantly started is avoided, the smooth driving control method is completely and suitably used for a large rotational inertia antenna, and a communication-in-moving antenna is rapidly and smoothly driven during satellite replace.

Description

technical field [0001] The invention provides a stable drive control method for a satellite antenna, which is suitable for occasions where the mobile communication antenna is required to rotate quickly and smoothly to a target angle, and belongs to the technical field of satellite communication. Background technique [0002] In the process of antenna tracking satellite in motion, when the inertial navigation system receives the instruction to replace the satellite, the inertial navigation system first calculates the target angle driving amount of each axis of the antenna system according to the position of the replacement target satellite, and then drives the angle The amount is sent to the antenna servo system, and the motor in the antenna servo system drives the antenna to rotate to the target position. [0003] In order to realize rapid satellite replacement in motion and shorten the rotation time as much as possible, the prior art generally sets the drive angular rate wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q3/02
Inventor 郭涛邬江袁伟涛杨新华门吉卓
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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