Quasilinear Optimal Smoothing Filter Command Control On The One-dimensional Trajectory Correction Projectiles

In order to adapt the requirements of the military's precision strike weapons, continuing to increase and improve the conventional artillery ammunition against the target of the coverage density, trajectory correction technology was emerged. The one-dimensional ballistic trajectory correction as the initial stage of trajectory correction, there are simple, low cost, etc., can be used to convert a mass of our military conventional "dumb" shell. The one-dimensional ballistic trajectory correction technology using of instruction to control damping ring is a more adapt to the current situation of Chinese one-dimensional ballistic trajectory correction technology, which uses radar to detect projectile flight parameters by the firing controlling computer in the ground for filtering and extrapolation, Ultimately compared to the parameters of target and formed the control command, sent to the projectile, damping ring opened at the appropriate time correcting ballistic trajectory.This paper mainly studies the analyzes one of the key technologies of this kind of one-dimensional ballistic trajectory correction technology, that is instruction formed process. we created a mathematical model of trajectory for filtering and extrapolating in the ground coordinate system, choosing a kind of improved kalman filtering method for the ballistic filtering, namely to be Quasi-Linear Optimum Smoothing Filtering (Q.L.O.S.F),which is a more suitable non-linear system method, using Runge-Kutta method for ballistic extrapolation, eventually formed controlling commands for correction. This paper verifies rationality and reliability of the created model and the method of ballistic filtering and determines the ballistic trajectory filter parameters by simulated a large number of ballistic trajectory data, and finally verifying this one-dimensional ballistic trajectory correction technology can be used to greater degree of improvement vertical projectile density of the target coverage, thus verifying the correctness and feasibility of using this technology.