Title :
Cosmic and atmospheric radio spectroscopy: new approach and results
Author_Institution :
Nizhny Novgorod State Univ., Russia
Abstract :
Discusses the application of the Wigner-Ville (WV) signal time-frequency analysis for millimeter wavelength solar bursts investigation. In addition to solar microwave bursts, we discuss briefly the first attempts to analyze the time-frequency distributions of H2O space maser radio emission using the WV method. Some new aspects of atmospheric ozone studies are covered. The microwave ozone lines intensity ratio is informative of the molecular distribution of rotational energy levels. Compared to the proper solar activity indices, such ratios are of interest as a new probe of solar-terrestrial links. The last ozone relevant problem is the observations of the atmospheric N 2O rotational line
Keywords :
Wigner distribution; astronomical masers; atmospheric composition; atmospheric techniques; geophysical signal processing; interstellar molecules; nitrogen compounds; ozone; radioastronomical techniques; rotational states; solar radiofrequency radiation; time-frequency analysis; water; H2O space maser radio emission; N2O; O3; Sun; WV method; Wigner-Ville signal time-frequency analysis; atmospheric N2O rotational line; atmospheric ozone studies; atmospheric radio spectroscopy; millimeter wavelength; molecular distribution; rotational energy levels; solar microwave bursts; solar-terrestrial links; Astrophysics; Atmosphere; Atmospheric waves; Energy states; Masers; Observatories; Physics; Signal analysis; Spectroscopy; Time frequency analysis;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946761
