Automatic Identification and Parameter Extraction of Solar Type Ⅲ and Ⅱ Radio Burst Based on Probabilistic Hough Transform

Nonthermal energetic particle flow and shock wave generated during flares and coronal mass ejection are the two main factors that produce disastrous space weather events. Their main observational characteristics are type Ⅲ radio burst with fast frequency drift feature and type Ⅱ radio burst with relatively slow frequency drift feature. This paper mainly introduces the method of using the probabilistic Hough transform to automatically identify the solar type Ⅲ and type Ⅱ radio burst in the observation data, and to extract the characteristic parameters of the type Ⅲ and type Ⅱ radio burst, finally the velocity of the CME shock wave is estimated by using the physical parameters of the identified radio type II bursts.