收稿日期: 2004-06-24
修回日期: 2004-11-26
网络出版日期: 2005-09-15
基金资助
中国科学院、科技部973项目(G2000078403);自然科学基金项目(10333030,10225313)共同资助
Bandwidth of Spikes in Solar Microwave Bursts
Received date: 2004-06-24
Revised date: 2004-11-26
Online published: 2005-09-15
朱艳鑫 , 王蜀娟 , 宋国乡 , 颜毅华 . 太阳微波爆发中尖峰辐射的带宽计算[J]. 中国科学院大学学报, 2005 , 22(5) : 568 -574 . DOI: 10.7523/j.issn.2095-6134.2005.5.006
Two groups of spikes were recorded by the 1.08 ～ 2.04GHz spectrometer of National Astronomical observatories of China on 27 October 2003.The mean and minimum bandwidths of spikes are calculated with two different methods based on the wavelet analysis.The first method determines the dominant spike bandwidth scale based on their scalegram, and the second method is a feature detection algorithm in the time-frequency plane. Finally the results are compared and discussed.
Key words： solar microwave bursts; spike; wavelet transform
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