Research Of Missile Silo Personnel Positioning System

Missile weapons are an important deterrent of our country,part of the missiles take the way of underground launch,it will be helpful for commander's command decision-making and emergency rescue if we can get access to the location data of people and equipment in missile silo.Currently,global positioning system is the most frequently used positioning method,but because of the complicated environment of missile silo,GPS would get inaccurate position and usually can't find the satellite.Location technology based on wireless sensor networks can be used in complicated environment like missile silo,but most of the traditional wireless based on location technology are usually power-intensive,inaccurate,time consuming and weak battery life because the location system should sample and process huge amount of data and the data is easily influenced by complicated indoor environment.This thesis focused on the complicated environment of missile silo,analyzed the situation of the indoor location technology based on wireless sensor network,designed and achieved a location system which can be used in complicated environment like missile silo based on Compressed Sensing,the major works are as follows:1.Researched and introduced location technology,algorithm,Compressed Sensing,analyzed the problems which influence the performance of location system,indicated the improve direction;2.A multi-target localization algorithm based on compressed sensing was achieved in this thesis.The issue of multi-target positioning was transformed into sensing the compressions.The algorithm greatly reduced the amount of wireless network's communication data by transferring most of the computing work to the central server.This method made full uses of the priori information of the signal and the support set.Simulation results showed that the proposed method has good noise immunity,robustness and positioning accuracy compared with traditional localization methods.3.Through the method of jointing Matlab and Visual basic,we completed a location system on TI's CC2430,tested the system in silo-similar environment and analyzed the problems which occurred on the system and indicated the improve direction.