Analysis of a Complex Solar Radio Burst

A complex solar radio burst observed with the spectrometers of NAOC working at 625~1500 MHz, 2600~3800MHz, and 5200~7600 MHz was analyzed in this paper.We probe the correlations of the radio data with the data of Hα flares, CME, and Hard X-rays of the same underlying burst, as well as those of related (terrestrial) atmospheric events.We have found some prominent features about the burst.We think that the electron-acceleration site may be in the outer corona——near the region corresponding to the frequency 625 MHz.We also think that the magnetic reconnection occurred several times, and the decay phase after the magnetic reconnection is a turbulence-acceleration process.