Research Of Control System For Space-based Camera-scan Lens

Against the application background of scanning visible light camera for remote satellite, the realization method of scan control system for the space remote camera is mainly introduced, and the design of the digital-control system of the limited finite corner DC motor without brush in space remote camera has also been finished.On the basis of the analysis for characteristics requirements of scanning control system of space remote camera, the constitutes plan for the control system of the scanning mirror is presented, DSP technology is adopted as the control kernel, and the angle, the speed, the current system is selected as the closed-loop digital control.Based on the application characteristics of the space remote camera and different kinds of angle-sensors, a scheme which using two speed resolver as the position sensor of the control system is presented, and a deep study on the angle coding circuit and explains in the design at some length has also been done.For the high speed DSP, the basic composition and hardware structure of scanning mirror control-system in space remote camera is stated. The digital-control system of the limited finite corner DC motor without brush has been finished, which takes the DSP technology as the control kernel. The DSP control system circuit and the hardware circuit of limited finite corner direct current motor without brush has been finished. The algorithm routine and software of the control system has also been completed.The control system has been applied in the test prototype after the design and debugging of the control system. Under the control of the system, the scanning image parameters of the camera has met the design demands. Now, the camera has passed the check and been accepted by the higher authorities, which strongly proved the availability of the design .