Solar Radio Burst Automatic Detection Method for Decimetric and Metric Data of YNAO

• 作者: Gaifang Luo Guoliang Li Guowu Yuan Hongbing Dai Liang Dong Menglin Jin Zexiao Cui
• 来源期刊: 国际计算机前沿大会会议论文集
• 学科: 社会科学
• 关键词: SOLAR RADIO SPECTRUM SOLAR RADIO BURST Image DENOISE OTSU
• 年，卷（期）: 2019,（1）
• 页码范围: 293-294
• 页数: 2页
• 分类号: C

摘要

With the development of solar radio spectrometer, it is difficult to process a large number of observed data quickly by manual detection method. Yunnan astronomical observatories (YNAO) have two solar radio spectrometers with high time and frequency resolution. An automatic detection method of solar radio burst for decimetric and metric data of YNAO is proposed in this paper. The duration of solar radio burst was counted and analyzed. Channel normalization was used to denoise the original solar radio image. Through experimental comparison, Otsu method was selected as a binary method of solar radio spectrum, and open and close operations were used to smooth the binary image. Experiments show that the proposed method for automatic detection of solar radio bursts is effective.