Title :
Radiometric Space Complex for Research of Spectral Lines of Oxygen
Author :
Bragin, I.V. ; Sgibnev, V.P. ; Bragin, S.I. ; Shevaldykina, T.B. ; Zheltikov, I.A. ; Khidasheli, D. ; Polischuk, G.M. ; Chen, W. ; Lu, L.
Author_Institution :
Russian Fed. Space Agency, Moscow
Abstract :
At present the research in the field of altitude temperature profile and pressure of Earth atmosphere is of considerable importance. One of feasible methods of acquiring results is the interpretation of resonance line of oxygen at frequencies of 50...60 GHz. In the present article the results of creating radiometric complex in the range of 50-60 GHz are considered. The complex has four radiometric channels and joint scanning antenna system. The high sensibility has been achieved due to minimum losses in the antenna and VHF tract. A good stability of the complex parameters has been achieved by the benefit of digital processing of signal and periodic calibration of the radiometer by the spatial noise generator and cold space. The experimental characteristics of the unit are given in the article.
Keywords :
calibration; geophysical signal processing; millimetre wave antennas; millimetre wave measurement; noise generators; oxygen; radiometry; scanning antennas; spectral analysis; Earth atmospheric pressure; VHF tract; altitude temperature profile; calibration; digital signal processing; frequency 50 GHz to 60 GHz; joint scanning antenna system; oxygen; radiometric space complex; resonance line; spatial noise generator; spectral lines; Calibration; Frequency; Noise generators; Oxygen; Radiometry; Resonance; Signal processing; Stability; Temperature; Terrestrial atmosphere;
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345172