Servo control method for vehicular moving-base photoelectric-search tracking turntable

Abstract

The invention belongs to the field of photoelectric servo control and particularly discloses a servo control method for a vehicular moving-base photoelectric-search tracking turntable. The method includes the steps of inertial space search control for the photoelectric-search tracking turntable, namely acquiring motional new DA-port (digital/analog port) search voltage controlled volume of a control motor so as to allow a drive motor to drive the turntable to search; scram control for the photoelectric-search tracking turntable, namely acquiring motional DA-port scram voltage controlled volume of the control motor so as to allow the drive motor to drive the turntable to scram; and tracking control for the photoelectric-search tracking turntable, namely acquiring motional DA-port tracking voltage controlled volume of the control motor so as to allow the drive motor to drive the turntable to track. By the method, functional requirements of the moving-base photoelectric turntable for decoupling control can be met, the requirement of the turntable for high-precision tracking and positioning control can be met, and stable high-speed searching performance and search scramming and tracking performance of the turntable in inertial space can also be guaranteed.

Description

technical field [0001] The invention belongs to the field of photoelectric servo control, and in particular relates to a servo control method for a photoelectric search and tracking turntable of a vehicle-mounted moving base. Background technique [0002] The photoelectric tracking turntable is an important part of the photoelectric guidance and tracking equipment. Its performance is directly related to whether the photoelectric guidance equipment can meet the required tracking accuracy requirements and realize the related servo control functions. With the enhancement of target maneuverability, the photoelectric tracking The tracking ability and servo control performance of the turntable also put forward higher requirements. The high-speed and high-precision vehicle-mounted moving base photoelectric search and tracking turntable is a kind of photoelectric tracking turntable. From the perspective of servo control, it is a photoelectric stability, high-speed search and high-pr...

AI Technical Summary

Problems solved by technology

[0004] When the vehicle-mounted mobile base photoelectric tracking turntable is working in the search state, it is required that the azimuth rotates at a high-speed angular velocity of 360° / s in the inertial space, and the pitch axis must always maintain the required inertial space angle; the turntable needs to be transferred from the high-speed search state to the tracking The stable time of the state is not more than 1s; the photoelectric tracking turntable usually performs tracking control according to the amount of image off-target, and the amount of image off-target due to the problems of long delay and large communication cycle, the conventional PID composite control with speed feedforward cannot guarantee High-precision tracking requirements for photoelectric turntables

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