PMO OpenIR
南极5 m太赫兹望远镜指向与调焦校准精度分析
康浩然; 左营喜; 娄铮; 何茜茹
2018
Source Publication天文学报
ISSN0001-5245
Volume059Issue:002Pages:17
Abstract指向校准与副面调焦是天线测量的重要组成部分,对射电望远镜实际的观测性能有重要影响.根据南极5m太赫兹望远镜(DATE5)指向精度和离焦增益损失的指标要求.计算得到了指向校准与副面调焦观测过程中对信噪比的要求,并以此为依据选取了若干可行的候选校准源,包括太阳系行星和超致密电离氢区.分析了大气吸收和校准源角直径对测量精度的影响.仿真分析结果表明:望远镜在南极工作时,这些校准源在一定的高度角范围内可以提供足够强的流量密度,用来验证预先建立的太赫兹和光学望远镜两光轴指向偏差模型以及副面调焦模型.
Language英语
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/29571
Collection中国科学院紫金山天文台
Affiliation中国科学院紫金山天文台
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
康浩然,左营喜,娄铮,等. 南极5 m太赫兹望远镜指向与调焦校准精度分析[J]. 天文学报,2018,059(002):17.
APA 康浩然,左营喜,娄铮,&何茜茹.(2018).南极5 m太赫兹望远镜指向与调焦校准精度分析.天文学报,059(002),17.
MLA 康浩然,et al."南极5 m太赫兹望远镜指向与调焦校准精度分析".天文学报 059.002(2018):17.
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