The Study Of UVA Aeromagnetic System And Compensation

Ground high-precision magnetic method can carry out large scale magnetic survey work and provide high-resolution image map of the geomagnetic field.Since walking is too slow,data collection efficiency of this method is too low;Aero-magnetic can collect data efficiently,but due to safety flight,this method can not provide high-resolution image map of the geomagnetic field,and can not carry out large scale magnetic survey mission.The author give a compromise proposal.UAV aero-magnetic system of using UAV as carrier can collect data more quickly, efficiently and accurately,and can carry out large scale magnetic survey mission and can provide rovide high-resolution image map of the geomagnetic field,in addition to eliminate the effect of magnetic interferences and rugged terrain.The reserach of UAV aeromagnetic system has been proved to be successful,some company of geophysical has carried out magnetic survey mission and obtained great results.Domestic research of UAV aeromagnetic system has just set up the project,some relevant information rarely has been reported.The papers uses UAV realted technology of UAV control theory,measures third-components of geomagnetic field by magnetic heading system of UAV,measure attitude angle of UAV by Inertial Naviagtion System(INS),and gives magnetic compensation method.The paper introduces the platform system and automatic flight control system of UAV,study type and nature of magnetic interferences,constructs mathematical model,illustrates the basic principle of magnetic compensation,gives specific compensation proposal,does simulation experiments,and analysis the feasibility of UAV aero-magnetic system.