Research On Course Monitoring System Of LAV's Ground Station

Loitering Aerial Vehicle(LAV)combines Unmanned Aerial Vehicle(UAV)technology with ammunition technology and has a unique advantage in the future network information warfare.LAV's Ground Station is the control center of LAV system.Meanwhile,course monitoring system is the core component of the ground station,playing an important role in planning,control and monitoring of LAV flight path.This paper,analyzing LAV flight route in the penetration and reconnaissance stage,combining GIS technology,visual simulation technology and communication technology,has developed a set of course monitoring system which is based on the integration of track planning,track updating,track monitoring,attitude reduction and task playback.The work of this thesis is as follows:1.Constructing Battlefield environment model.Firstly,this paper analyzes the combat environment,and presents a terrain construction method based on elevation information.Then,according to the threat factors of LAV,the equivalent space model of radar,antiaircraft gun and anti-aircraft missile is constructed,which provides the environmental basis for the course planning.2.Planning the course of LAV.Based on the analysis of the three dimensional search space in the penetration stage,a path planning method based on SAS algorithm is established for the purpose of minimum track generation value.Based on the analysis of the navigation channel in the reconnaissance phase,the calculation formula of the waypoint in the three fixed modes is obtained with the aim of the minimum overlap ratio.3.Designing of course monitoring system.According to the functional requirements of the monitoring system,in this paper,GIS technology is used to monitor LAV,3D visual simulation technology is used to realize the virtual demonstration of real time attitude and the data exchange between LAV and the ground module is realized by using the communication data link technology.The test results show that the system can provide accurate navigation function,satisfy the requirements of course planning and course change in different stage and receive real time course data of LAV in flight and the system completes the gesture reproduction in the visual module.The whole system is running well and high reliability for LAV out on missions to provide protection.