Radio Observations of the Quasiperiodoc Oscillations od Plasma Structures in the Solar Atmosphere and Their Physical Nature

Radio obsrrvations of the oscillations of different types of the radio sources observed at the microwave maps of the sun are presented. The observations were carried out using modern large antennas, such as RATAN-600, Badary (SSRT), Nobeyma, RT-22. Wavelet analysis was used to find time variation and specific periods of quasiperiodic oscillations. The periods in the range from fraction of a minte to some hours were detected. Practically all solar plasma structures demonstrated the periodic processes. Three physicaly different types of resonance pocesses are discusse as rsponsible for the peridoc nature of the oscillations. The work was suppotred by grants RFBR (02-16548) and by INTAS (02-543).