Microwave holography measurement and adjustment of 25-m radio telescope of Shanghai

	Microwave holography measurement and adjustment of 25-m radio telescope of Shanghai
	Yu, Hong
刊名	MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
	2007-02-01
卷号	49 期号:2 页码:467-470
关键词	microwave holography antenna measurement correlator
英文摘要	In an attempt to measure and correct the surface profile of the Sheshan 25-m radio telescope, the author carried out a phase coherent holographic experiment at 12.26 GHz with a geostationary communication satellite SINO-1 in the far field. To improve the spatial resolution, the author took the drift of the communication satellite into consideration. For the backend, a digital cross correlator was used to measure the complex beam pattern of the antenna under test. According to the data collected in the experiments, the holography software Call give the energy distribution map, error map, and a suggested adjustment for every junction of the panels, after four iterations of measurement and adjustment in a week, the surface accuracy of the antenna is improved from 0.948 mm to better than 0.5 mm. The experiment shows that the microwave holography is much faster and more convenient than traditional method. (c) 2006 Wiley Periodicals, Inc.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Electrical & Electronic ; Optics
研究领域[WOS]	Engineering ; Optics
关键词[WOS]	PHASE RETRIEVAL ; REFLECTOR
收录类别	SCI
语种	英语
WOS记录号	WOS:000243297000062
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/19492]
专题	上海天文台_VLBI研究室
作者单位	Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Yu, Hong. Microwave holography measurement and adjustment of 25-m radio telescope of Shanghai[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS,2007,49(2):467-470.
APA	Yu, Hong.(2007).Microwave holography measurement and adjustment of 25-m radio telescope of Shanghai.MICROWAVE AND OPTICAL TECHNOLOGY LETTERS,49(2),467-470.
MLA	Yu, Hong."Microwave holography measurement and adjustment of 25-m radio telescope of Shanghai".MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 49.2(2007):467-470.