FAST望远镜馈源支撑若干关键问题研究的中期报告摘要：FAST望远镜馈源支撑系统是保障望远镜正常运行的重要组成部分，本文对该系统的若干关键问题进行了研究。首先，我们详细介绍了馈源支撑的原理和结构，包括观测天区覆盖范围、天空坐标系、赤经赤纬坐标系、反射面控制等方面。然后，我们分析了FAST馈源支撑系统的关键问题，包括反射面控制、自适应光学系统、天空坐标系转换、动态指向控制等方面。针对这些问题，我们提出了相应的解决方案和技术措施，包括改善反射面控制精度、改进自适应光学系统、研究天空坐标系转换算法、优化动态指向控制算法等。最后，我们对我们的工作进行了总结，并展望了未来的研究方向。关键词：FAST望远镜；馈源支撑系统；反射面控制；自适应光学系统；天空坐标系转换；动态指向控制Introduction:FAST(Five-hundred-meterApertureSphericalTelescope)isabigsciencefacilityforradioastronomyresearchandexploration,coveringawiderangeofscientificfields.ThesupportsystemofthefeedsourceisoneofthekeypartsoftheFASTtelescopesystem.Itisresponsibleforensuringthestabilityandaccuracyofthetelescope'sobservation.ThispaperexploresseveralkeyissuesrelatedtothefeedsourcesupportsystemoftheFASTtelescope,includingfeedreflectorcontrol,adaptiveopticssystem,skycoordinatesystem,anddynamicpointingcontrol.Basedontheanalysisoftheseissues,weproposecorrespondingsolutionsandtechnicalmeasures.PrinciplesandStructureofFeedSourceSupport:Thefeedsourcesupportsystemmainlyincludesthefeedreflector,thesub-reflector,thereceivercabin,andthefeedsupportstructure.Itsmainfunctionsaretoadjustthepositionofthefeedsourceandtrackthecelestialbodiesinaccordancewiththeobservationrequirements.Keyissuesandproposedsolutions:1.Feedreflectorcontrol:toimprovethecontrolaccuracy,wesuggesttheuseofanon-contactmeasurementmethodtoobtainaccuratereflectorsurfacedeformationdata.2.Adaptiveopticssystem:toimprovesystemperformance,wesuggesttheuseofadeformablemirroradaptiveopticssystem.3.Skycoordinatesystem:toresearchafastandaccuratecoordinateconversionalgorithm,wesuggesttheuseofthetransformmethodbasedontheuniversalrotationmatrix.4.Dynamicpointingcontrol:tooptimizethepointingalgorithm,wesuggesttheuseofaKalmanfilterbasedpointingcontrolalgorithm.Conclusion:ThisreportanalyzesandproposessolutionstoseveralkeyissuesrelatedtotheFASTtelescopefeedsourcesupportsystem.Futureworkwillfocusonthedevelopmentandimplementationofthesesolutions,aswellastheexplorationofnewresearchdirections.