摘要
在人造卫星观测的ＣＣＤ图象记录中，为方便图象保存，查阅及图象处理，将图象记录中的相关信息插入记录的图象中是十分重要的。ＹＴＩ－Ａ视频时码插入器正是为此应用而设计。本仪器内有一个可自动与后面板输入秒同步到１μｓ的数字钟。记录日期包括年月日，时刻记录精度为１０μｓ，望远镜指向（Ａ，ｈ）的记录精度为１″。这些信息全部以二种格式被插入记录的图象中可供图象处理时查阅和快速读出。
IntheCCDimagerecordingofthesateliteobservation,Itisveryimportanttoin-sertsomeinformationintotherecordingimageinordertosave,lookupandprocesstheimage.TheYTI-ATVtimecodeinserterintroducedinthispaperhasbeendevelopedfortheapplication.Intheinstrument,thereisadigitalclockauto-synchronizedwithin1μswithrespecttotheinputinsecondfromtherearpanel.Therecordeddateincludesyear,monthandday.Thepricisionoftherecordedtimeis10μs,andthepricisionoftherecordedtelescopeposition(A,h)is1″.Theseinformationrecordedarealinsertedintotherecordedimagewithtwoformssothattheycanbelookeduporfastreadedoutfortheimageprocessing.TheprincipleandapplicationoftheYTI-Aarealsodescribedinthispaper.
出处
《云南天文台台刊》
CSCD
1997年第4期86-90,共5页
Publications of the Yunnan Observatoty
