| Bei Dou Navigation Satellite System(BDS)is a new type of Global Navigation Satellite System(GNSS)which focuses on military field of China.BDS outperforms Global Position System(GPS)in security and accuracy.However,because of the far distance of navigation satellites,the weak signal,the easy suppression from enemy and the deception method,it is urgent for Chinese military to develop BDS anti-jamming antenna system.Originated from scientific research project,this thesis aims to develop a navigation satellite system featuring anti-jamming antenna,which is of great engineering value.Besides,it will build the test platform to evaluate the ability against interference of this system.This thesis analyses the technological base of anti-jamming antenna and chooses the anti-jamming antenna based on adaptive nulling as the integration schema.Through the study of key technology of anti-jamming antenna of satellites,this thesis selects every key technological sector.In addition,a satellite anti-jamming navigation antenna system is built,integrated and debugged.This thesis demonstrates the test method for anti-jamming navigation antenna system.One-direction interference environment and three-direction interference environment were established to test its anti-jamming abilities these two environments.In addition,a static scenario and a dynamic scenario of the anti-jamming antenna are designed to provide a test platform for validation. |
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