The Research Of Field Strength Tracking Technology Of Satellite Antenna

With the rapid development of electronic information technology and social needs, the satellite in the military field and inside the field of civil occupies a pivotal position. It has been widely used in navigation, positioning, meteorology, etc., but in the process of moving the carrier, due to driving traffic, the effects of extreme weather and other external obstacles encountered a variety of factors, satellite antenna field strength signal tracking is easy lost satellite antenna field to solve problems of tracking technology, the paper in-depth study of the field tracking technology.Carrier during exercise, how to ensure that the satellite antenna field research is always aligned, is the core issue of satellite communication technology. In the context of attitude measurement on MEMS gyroscope stabilization technology research projects with the subject field of satellite-based tracking satellite antenna theory and tracking technology, antenna pointing model established in the geographic coordinate system antenna pointing model and carrier coordinate system; established conical scanning the relevant technical parameters extracted error angle conical scan completed simulation conical trajectory; pointed out the defects of stepping tracking method improved step tracking algorithm and simulation verification.First of all, the significance of this topic in detail the application background and research, summarizes the research status at home and abroad for a satellite antenna tracking technology, from the existing techniques, analyzes existing problems in this field, combining research the project background, identify research methods used in this thesis and research.Secondly, based on the basic theory of satellite tracking antenna field, select the reference coordinate system, namely the establishment of a geographic coordinate system and the antenna pointing model vector coordinates, finished solving azimuth, pitch angle and rotation matrix calculations, and geography coordinate system conversion azimuth and elevation to the carrier coordinate system.Again, based on satellite antenna field tracking process, an initial analysis of the satellite field coarse alignment and precise alignment process, pointing out the advantages and disadvantages of various tracking methods.Then study the conical scan tracking method designed conical scan related technical parameters, simulation verify the feasibility of extracting and scanning scanning error angle trajectory control.Finally, by way of a detailed step tracking studies point out the shortcomings of the step tracking method is proposed to improve the algorithm corresponding to complete the simulation algorithm, the simulation results verify the correctness of the method.