Rate gyro stabilizing platform type antenna followup system

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

Inactive Publication Date: 2009-03-11
HARBIN ENG UNIV
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  • Abstract
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Problems solved by technology

The follow-up system generally has flutter

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] Hereinafter, the present invention will be described in more detail with examples in conjunction with the accompanying drawings:

[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 direction finding device 1, correction link 3, PID controller 4, PWM drive 5, torque motor 6, angle measuring potentiometer 7, angular rate The top 12 and the differential link 10 are composed. From the inside to the outside, 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.

[0022] The angular acceleration feedback loop is composed of PWM drive 5, torque motor 6, angular rate gyro 12, differential link 10, and angular acceleration feedback amplification link 11. The output signal of the diagonal rate gyro is differentiated to obtain the ang...

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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] Radar, optical imaging and other direction finding devices intercept the target signal, and detect the error angle information of the electric axis or optical axis and the target line of sight in real time. The electric or optical axis must be controlled by the servo system to track the target in real time, and the output is proportional to the target line of sight angular velocity The signal is sent to the autopilot system of the aircraft for proportional guidance. The decoupling of the follow-up system can ensure that the antenna's electric axis can always track the target quickly, and at the same time, it can isolate the attitude angle movement of the carrier. Therefore, the performance of the antenna servo system has an important impact on the performance of the entire direction finding system. The follow-up system generally has flutter phenomenon, ...

Claims

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Application Information

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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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