Method for overcoming motor dead zone and improving radar tracking precision in speed ring

A radar tracking and speed loop technology, applied in the direction of control using feedback, can solve problems such as inability to eliminate tracking errors, improve bandwidth, overcome the increase in tracking errors, and solve the effect of "crawling".

Active Publication Date: 2014-10-22
LINGBAYI ELECTRONICS GRP
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to address the shortcomings of traditional PID control that cannot realize the self-tuning of control parameters, introduce intelligent PID control, provide a method that can effective...

Method used

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  • Method for overcoming motor dead zone and improving radar tracking precision in speed ring
  • Method for overcoming motor dead zone and improving radar tracking precision in speed ring
  • Method for overcoming motor dead zone and improving radar tracking precision in speed ring

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Embodiment Construction

[0019] figure 1 The servo control system shown is composed of a servo controller, a driver, a torque motor, and a radar antenna. The servo controller, driver, and torque motor belong to the control part of the radar servo system. The radar antenna belongs to the mechanical part of the radar servo system. The servo controller is used to complete information collection and calculation processing, and generate output voltage to the driver. The driver is used to connect the servo controller The output voltage is amplified to drive the torque motor to run, and the rotation axis of the torque motor is coaxial with the rotation axis of the radar antenna, so that the operation of the motor will drive the radar antenna to run synchronously. Motor current feedback, motor speed feedback, and antenna position feedback form a servo three-closed-loop control tracking radar servo control system. The servo control system is used to control the radar antenna to move at a specified speed to ac...

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Abstract

The invention provides a method for overcoming a motor dead zone and improving radar tracking precision in a speed ring, and aims at providing a method capable of timely removing the motor dead zone and effectively improving the radar tracking precision. According to the technical scheme, the method comprising the following steps: containing a current ring into a driver in a tracking radar servo control system that performs control by three rings, namely, the current ring, a speed ring and a position ring; receiving and implementing a control command sent by a radar terminal system and error information sent by a radar information processing system through a built-in operation processor of a servo controller; performing proportional-integral (PI) correction for the error in a loop circuit through a built-in motor dead zone detection software procedure in the speed ring of the operation processor; sending output voltage that is in direct proportion to the speed of a motor to the driver to drive a radar antenna to move; immediately outputting and compensating voltage of the same polarity to the speed ring of the servo controller while the speed ring of the servo controller is beyond the index as specified and the antenna is unmoved.

Description

technical field [0001] The invention relates to a method for processing the dead zone of a speed loop motor in a tracking radar servo control system. Background technique [0002] The tracking radar servo system, as the actuator that drives the radar antenna, is a special servo system, which is composed of a servo mechanical structure and a servo controller. The main function is to perform comprehensive calculations based on commands and errors, control the motor to drive the radar antenna to follow the target, and measure the position code of the radar mechanical axis accurately in real time. The radar servo system is a three-axis system including azimuth axis, pitch axis and roll axis, which is a typical mechatronic system. For a long time, for a mechatronics system such as a radar servo system, both in theory and in engineering design, it has been artificially divided into two parts: the mechanical part and the control part. The radar servo system calculates the control...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 李守琴段秀波卢洲陈松波谢林郭珊
Owner LINGBAYI ELECTRONICS GRP
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