The Design And Implementation Of Shipborne Electro-optical Stabilization Platform Control System Based On DSP

Photoelectric stabilized platform is moving to resolve the base device designed for stable operation,it can effectively help isolate the interference devices such as hull swing,vibration moving base,so that the device can be sustained,steady work.Shipboard photoelectric stabilized platform is an important category of photoelectric stabilized platform,the technology over the years has made great progress,its role has expanded from the original military to civilian areas in the field,not only can be applied to detect the enemy,still Coast Guard patrol,search and rescue,and environmental monitoring and many other fields have important uses.In order to meet the different needs of the various aspects of control precision photoelectric stabilized platform shipboard increasingly demanding control system itself has become increasingly complex.In this paper,based on experiments,the characteristics shipboard equipment for shipboard photoelectric stabilized platform design principles and servo control algorithm in-depth research.This paper outlines the development of the situation at home and abroad and photoelectric stable platform from design structure and stability of the principle aspects of the visual axis.Then for shipboard photoelectric stabilized platform design requirements and difficulties were a little research aspects:1,the design of a moving base for biaxial photoelectric stabilized platform(elevation,azimuth biaxial)boresight stable solutions.By direction cosine matrix linkages between the various coordinate systems,and in accordance with the direction of the ship hull and attitude information provided by the inertial navigation system calculates the cosine matrix solution for tracking servo control required angle.2,stable platform for shipboard photoelectric shaft friction large warship INS attitude and slow data updates and other technical difficulties,in-depth study of the servo control algorithm.Design set contains the current loop,velocity loop,multi-loop control system position loop and complex feedforward compensation sectors to ensure the system’s rigidity,overcoming great friction.On the basis of this system on the front plus a feed-forward compensation to improve the control accuracy of the system.Through system simulation,to verify the feasibility of the design of servo control system.3,using the least-squares curve fitting gesture to make up for the shortcomings of slow data updates.And intelligent control system,as well as increasing the notch filter algorithm increases the immunity system.3,DSP servo control board TMS320F28335 models were based programming.The servo control algorithm with bilinear discrete variation method,the visual axis servo control algorithms and stable solutions using C language implementation in DSP.The actual design of digital filters to filter out noise that may occur in the system.The many-level resolver data fusion,a highly accurate angular position feedback.Connecting each module,complete control of the stability of the platform.Through the feasibility of actual debugging verification system platform,the system repeatedly to adjust the system to achieve high accuracy indicators.The research results can be used to prove the general shipboard photoelectric stable platform.