Study On Signal Filtering Algorithm For Tracking The Armor Target Using Ground Surveillance Radar

In this paper,as the background of the ground anti armor warfare,based on existing weapons and equipment technology,as the main target of the third generation main battle tank,the author studies the problem of armor tracking filtering.Based on the technical performance,Action characteristics and tactical use of the ground anrmor target,from the point of actual combat,topic analyses and researches "March,start shooting and escape" three action stage of the armored target.And put forward two kinds of improved tracking filtering algorithm:"A new de-biased converted measurement and sequential filtering algorithm including the radial velocity measurements(NVCMSF-D)" according to the marching stage and "the improved current statistical model adaptive filtering algorithm(I-CSMAF)"according to the carried out aiming at the fire and escape action stage.Based on the de-biased converted measurement filtering algorithm(CMF-D),introducing the radial velocity measurement and according to the different effect of radial velocity measurements for position and velocity filtering precision,NVCMSF-D algorithm proposes that in the sequential filtering using radial velocity measurements to correct the value of one step prediction,while retaining the position filtering value,so that the position of the filtering value and the velocity filter values are all improved.This improved new algorithm and the UKF including the radial velocity measurement and the EKF including the radial velocity measurement make a comprehensive comparative simulation,simulation results show the superiority of the improved new algorithm.I-CSMAF algorithm which is based on "adaptive filtering algorithm based on current statistical model(CSMAF),"improves calculation method for the acceleration mean and the variance of acceleration,and introduces the radial velocity measurement in the algorithm.By simulation,finally obtains the improved new algorithm has great improvement in accuracy.In armored target escape stage,I-CSMAF algorithm and "the interacting multiple model(IMM)algorithm" make a comprehensive comparative simulation,results show that the improved new algorithm is more suitable for tracking this stage.