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Rate gyro stabilizing platform type antenna followup system

A rate gyro and follow-up tracking technology, applied in the direction of control using feedback, can solve problems such as poor system stability and flutter, and achieve the effect of improving steady-state accuracy and fast tracking speed

Inactive Publication Date: 2010-10-20
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The follow-up system generally has flutter phenomenon, and its system stability is poor

Method used

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  • Rate gyro stabilizing platform type antenna followup system
  • Rate gyro stabilizing platform type antenna followup system
  • Rate gyro stabilizing platform type antenna followup system

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Embodiment Construction

[0020] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0021] combine figure 1 , the rate gyro-stabilized platform antenna follow-up tracking system based on angular acceleration feedback of the present invention consists of a direction finding device 1, a correction link 3, a PID controller 4, a PWM drive 5, a torque motor 6, an angle measuring potentiometer 7, and an angular rate Gyro 12 and differential link 10 constitute. Three closed-loop feedback control loops are composed of angular acceleration negative feedback loop, angular velocity negative feedback loop, and angular position negative feedback loop from the inside to the outside.

[0022] The angular acceleration feedback loop is composed of a PWM drive 5 , a torque motor 6 , an angular rate gyro 12 , a differential link 10 , and an angular acceleration feedback amplification link 11 . The angular acceleration signal is obtained by differentiating the out...

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Abstract

The invention provides a follow-up tracking system of a rate gyroscope stabilized platform type antenna, which comprises a direction-finding device, an adjustment link, a PID controller, a PWM driver, a moment motor, an angle measuring potentiometer, an angular rate gyroscope and a differential link. The PWM driver, the moment motor, the angular rate gyroscope and the differential link are connected in sequence to form an angular acceleration negative feedback loop; the PID controller, the PWM driver, the moment motor and the the angular rate gyroscope are connected in sequence to form an angular rate negative feedback loop; the direction-finding device, a preamplifier, the adjustment link and the angular rate negative feedback circuit form an angular position negative feedback loop; the angle measuring potentiometer, the preamplifier, the adjustment link and the angular rate negative feedback loop form an angle searching loop. The follow-up tracking system is an antenna follow-up system which is used for realizing the follow-up tracking technology of stably tracking, searching and isolating the angular motion of a carrier in the direction-finding devices, such as radars, optical imaging, and the like, in moving carriers so as to realize high precision, weak coupling, anti-turn-off performance, fastness and stabilization and realize proportional guidance.

Description

(1) Technical field [0001] The invention relates to an antenna follow-up tracking technology. (2) Background technology [0002] Direction-finding devices such as radar and optical imaging intercept the target signal, and detect the error angle information between the electrical axis or optical axis and the target line of sight in real time. The servo system must control the electrical axis or optical axis to track the target in real time, and the output is proportional to the angular velocity of the target line of sight. The signal is sent to the aircraft autopilot system for proportional guidance. The decoupling of the follow-up system can ensure that the electric axis of the antenna can always quickly track the upper target, and at the same time, it can isolate the attitude angle movement of the carrier. Therefore, the performance of the antenna follower system has an important impact on the performance of the entire direction finding system. The follow-up system genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
Inventor 陈涛马澍田司锡才郭立民
Owner HARBIN ENG UNIV
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