Research And Implementation Of Active Protection Control System For Armored Vehicles

The Active Protection System is the ultimate defense weapon system for armored vehicles,which can significantly improves the battlefield survival of armored vehicles.This paper will study the control system of Active Protection System,and divide the design of the control system into two parts: the software and hardware design and the control algorithm research.First,for the hardware and software part of the control system,this paper proposes a dualcore controller design scheme based on DSP+STM32,and according to the different functions,the control system is divided into several modules to carry out software and hardware design separately,such as power management module,radar communication module,booster detonation module,cabin door monitoring module,liquid crystal display module and FRAM memory module,etc.The DSP is responsible for the target tracking and intercepting algorithms with high complexity and high real-time requirements,the STM32 is responsible for the drive control of each functional module to ensure that the entire control system works reliably and efficiently.Then,for the control algorithm part,it is divided into target tracking algorithm and target interception algorithm for research and optimization.For the target tracking algorithm,a radar measurement space registration scheme is proposed to correct the influence of armored vehicle motion on target tracking.Monte-Carlo simulation is used to compare EKF,UKF and DCMKF filtering algorithms,which shows that UKF algorithm has better performance.Based on this algorithm,two optimization measures are proposed: introducing radial velocity measurement information and adopting proportional symmetric sampling strategy,the simulation shows that the two optimization schemes can significantly improve target tracking accuracy and convergence.For the target interception algorithm,the mathematical model of the interception system is established and the interception parameter solving steps are given in detail.In order to improve the accuracy of the interception algorithm,it is proposed to use the iterative average method to correct the intercept point coordinates and use time compensation for the interception module launch timing decision criterion.Finally,the main functional modules of the control system designed in this paper are debugged and tested,which verifies that the functions of each module meet the design requirements.And the interception probability simulation of the control algorithm is carried out,which verifies that the target tracking algorithm and target interception algorithm designed in this paper can make the interception probability of the system reach 95%,which meets the interception accuracy requirements of the Active Protection System.