毫秒级资料处理的新方法——1991年5月16日2.84 GHz太阳资料分析

A NEW METHOD OF MILISECOND-RESOLUTION DATA——THE ANALYSIS OF SOLAR DATA AT 2.84 GHz ON MAY 16, 1991

本文对1991年5月16日事件的资料进行了数据处理,不仅证明毫秒级资料可以通过平均平滑还原为秒级,还表明经1990年修改后的2.84GHz接收机输出的不同时间常数资料内部是自洽的。同时对太阳毫秒级资料作带通滤波将不同时间尺度的快速起伏分离出来。虽然在1991年5月16日的太阳资料中仅能发现亚秒级的起伏,但这种新的资料处理办法对今后的太阳射电快速起伏资料研究与证认是有帮助的。

This paper compared the smoothed averages of solar ms-resolution data with s-resolution data of the burst at 2.84 GHz on May 16, 1991 and found that the two kinds of data are not self-consistent, neither in calibration nor trend of burst fluxes. In this paper, using above method, the data of May 16, 1991 are processed and found the ms-resolution records can be reduced to the s-resolution records. The makes it clear that the data with various time constants from the improved receiver in 1990 are self-consistent.In this paper, a band-pass filter is used to separate the components of rapid fluctuations with various time scales from ms-resolution data of solar bursts. Although the components of rapid fluctuations with the time scale lower than 0.1s have not been found in data of May 16, 1991; above method is very useful to examine and processing data in future observations.