Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001crlj...48...73o&link_type=abstract
Journal of the Communications Research Laboratory. Special Issue: Large Aperture Radio Telescopes at Kashima Space Research Cent
Astronomy and Astrophysics
Astronomy
Water Masers, High Frequencies, Observation, Radio Astronomy, Dicke Radiometers, Thermal Emission, Spectra, Parabolic Reflectors, Emission, Atmospheric Attenuation, Active Galaxies
Scientific paper
For radio astronomy observations, the 22-GHz band is important as an observation frequency band for H2O maser-line spectrum emission from active regions in galaxies. For continuum-emission observations, however, 22 GHz has some disadvantages. In general, non-thermal emission becomes weaker at high microwave frequency bands, and water-vapor atmospheric absorption and emission degrades signals from the radio source and increases antenna noise. Consequently, 22-GHz continuum-emission observations are more difficult than observations at lower frequencies. In response to this problem, we have been developing a Dicke-type switching radiometer for single dish observation of continuum-emission sources. In this paper, we report on the configuration of this system and results of experimental observations using a reference radio source.
Kawai Eiji
Koyama Yasuhiro
Okubo Hiroshi
Sekido Mamoru
No associations
LandOfFree
Development of Dicke-Type Radiometer for 22 GHz Band does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Development of Dicke-Type Radiometer for 22 GHz Band, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Development of Dicke-Type Radiometer for 22 GHz Band will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1006316