DocumentCode :
397438
Title :
On the data combining technique for multiple VLBI networks to increase image fidelity
Author :
Ludke, Everton
Author_Institution :
Dept. de Fisica, Univ. Fed. de Santa Maria, Brazil
Volume :
2
fYear :
2003
fDate :
20-23 Sept. 2003
Firstpage :
775
Abstract :
The attainment of high-fidelity images obtained with Very Long Baseline Techniques and earth-rotation synthesis is the main observational quest to study the physical properties of cosmic radio sources for various astrophysical and cosmological purposes. In this paper, I present a method to combine individual array observations in radio continuum mode at 4995 GHz which is successful when obtaining enhanced images of radio sources. The data combining techniques explained here allow to produce synthesis array images which show details which cannot be obtained by standard data processing and observational techniques with individual arrays.
Keywords :
astronomy computing; deconvolution; iterative methods; radioastronomical techniques; radiofrequency cosmic radiation; radiowave interferometry; sensor fusion; 4995 GHz; Earth-rotation synthesis; MERLIN array; cold molecular gas; cosmic radio sources; data combining technique; deconvolving process; enhanced images; image fidelity; individual array observations; iteration; large antenna arrays; maximum entropy; multiple VLBI networks; multispectral data; of synthetic array beam; radio continuum mode; Antenna arrays; Antenna measurements; Correlators; Extraterrestrial measurements; Magnetic recording; Microwave antenna arrays; Phased arrays; Radio interferometry; Telephony; Video recording;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
Type :
conf
DOI :
10.1109/IMOC.2003.1242677
Filename :
1242677
Link To Document :
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