行星际闪烁单站单频数据处理

Reduction of Data of Interplanetary Scintillations Observed at a Single Station with a Single-Frequency Mode

太阳风是日地空间的主要物质来源,太阳风的观测对日地空间环境及地球物理的研究具有重要意义。地基行星际闪烁观测是监测太阳风风速,测量太阳风等离子体不规则结构,研究遥远致密射电源角径的重要且有效的方法。介绍了行星际闪烁地基观测的单站单频模式的基本理论,针对单站单频模式观测的数据处理及自编软件。本文的工作是为行星际闪烁单站双频系统数据分析处理作前期准备。

Solar wind is the primary source of materials in the interplanetary space, and is very important for the environment of the interplanetary space and the study of geophysics. Ground-based interplanetary scintillation（IPS） observations are important for monitoring solar-wind speed, observing solar-wind irregular plasma structures, and measuring angular sizes of distant compact radio sources. This paper describes the principles of observations of IPS at a single-station and at single-frequencies（ SSSF）, and also the data reduction method for this mode. There is a new system being developed for observations of IPS in a dual frequency mode at the Miyun Station of the National Astronomical Observatories of China. The new system is to serve the Meridian Project. This work is the preparation for the data analysis of the new system.