跟踪物体空间运动轨迹

Research on Object Space Trajectory tracking Optimization Simulation

LI Run ZHAO Zhi-wei

Lanzhou Petrochemical College of Vocational Technology, Lanzhou 730060,China

ABSTRACT: The paper researches the space objects trajectory modeling optimizatio.The traditional modeling methods need massive data collection ，which influences modeling effect.In order to better track and store the trajectory of moving objects ，then optimize trajectory modeling results ，the paper proposes an optimization algorithm based on the moving object trajectory description.by the spatial migration object level and vertical motion path curve, it infers the motion path curve of random position , and loads the error to track the

maneuvering target, thus it can be obtained the maneuvering target of the filter data curve, and it then adopts the Kaerman wave filter to be in progress to motion target trajectory curve level and smooth.The experimental results show that this method can effectively describe the trajectory of moving objects and obtain the expected results ． KEYWORDS: Trajectory modeling; Optimal trajectory; random error; Smiulation; Tracking Algorithm

0 Introduction

Moving object trajectory model is a reaction of moving object trajectories through a certain method to obtain the correct description,which refers to a variety of relatively small finite spatial moving objects, such as a running vehicle, aircraft, ships, people, the launch of rocket and missile, even in the working state of the computer, mobile phone and other moving object ect [1-2].

In order to better track and store the moving object’s trajectories ,then solve the problems existing in the traditional method, this paper presents a moving object in the space of the horizontal and vertical motion description, and then derives spatial moving objects trajectory curve.but in order to smooth moving target trajectory curve with Calman filter, it must load random error to track moving targets, and then gain the target's filtering data curves. The simulation results show that this method has a certain rationality and feasibility, and it can

effectively predict the space object trajectory ,and can realize simulation modeling of the moving objects trajectory [3-4].

1 Moving object model design and trajectory modeling

1.1 Moving objects spatio-temporal model

Object space motion model vividly describes the object motion geometric features. As a result of movement locus of object in three-dimensional space coordinates, so it is difficulty. In order to solve this problem, motion models need to add some dynamic characteristics, including the movement of the object position, moving speed, the region of space objects, the slant distance m R , angle of elevation

m ε (angle of elevation or depression of objects) and azimuth angle

m β and something else. through the model well describe the true motion state by useing