Self-tracking servo control system for flat plate with high integration and high precision

Abstract

The invention discloses a self-tracking servo control system for a flat plate with high integration and high precision. The self-tracking servo control system comprises a monitoring computer, a servo controller, a PWM driver, a direct current motor, a speed measurer, a transmission mechanism, a rotary transformer, a flat plate antenna and a support rotating mechanism, wherein the monitoring computer receives working conditions and issues control commands; the servo controller receives the control commands issued by the monitoring computer, reads antenna angle position information and receiver angle error information, closes a position loop, tracks the closed loop, and outputs analog controlled quantity to the PWM driver; the PWM driver closes a speed lop and a current loop to drive the direct current motor to further drive the flat plate antenna by the transmission mechanism to rotate; the flat plate antenna receives high frequency telemetry signals; the transmission mechanism, the flat plate antenna and the support rotating mechanism jointly constitute an antenna pedestal; the servo controller, the PWM driver, the direct current motor, the speed measurer, and the rotary transformer are installed on the antenna pedestal; the self-tracking servo control system has the advantages of small volume, light weight, low energy consumption and high integration level.

Description

technical field [0001] The invention relates to the technical field of radio telemetry, in particular to a highly integrated and high-precision flat plate self-tracking antenna servo control system. Background technique [0002] The antenna servo system is an important part of the telemetry system. Its main function is to make the receiving antenna automatically search and capture the target when the target enters the line of sight, and continuously track the target with a certain tracking accuracy, so that the target is always in the center of the main beam line for reliable and continuous reception of telemetry signals at maximum receive gain. Especially when a fault occurs and the target deviates from the scheduled flight track, the antenna servo system can search and capture the target in a large airspace and track it, and obtain important telemetry data to judge the fault. With the continuous development and improvement of telemetry technology, light weight and portabi...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used radio measurement and control communication system is a parabolic self-tracking antenna system. The parabolic self-tracking antenna system has a large antenna reflection surface and a large volume, which makes the self-tracking antenna system poor in mobility, heavy, difficult to conceal, and not easy to operate during use; The self-tracking antenna servo control system is usually composed of sky controller, antenna drive unit, motor, speed detection device, transmission mechanism, position detection device, parabolic antenna and supporting rotation mechanism, wherein the transmission mechanism, parabolic antenna and supporting rotation mechanism form the antenna base , the motor, speed detection device, and position detection device are installed on the antenna base, while the sky controller and antenna drive control unit are usually installed on a special workbench in a 4U chassis.

[0004] The servo system is an important part of the measurement and control communication equipment, which can be divided into azimuth branch and pitch branch. The quality of its performance will directly affect the tracking performance and tracking accuracy of the system. With the continuous development of telemetry technology, the servo system Steady-state accuracy and response speed have higher requirements. At present, the commonly used self-tracking antenna servo system adopts the traditional three closed-loop PID control of position loop, speed loop and current loop. It is difficult to obtain higher performance by using the classic PID control antenna servo system. Tracking accuracy and better dynamic performance

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