摘要
本文采用天线方向图半功率宽度和曲线偏离度两种方法,测得自动跟踪精度为8小时偏差不超过0.°01。同时改进了定标精度的计算公式,并从理论上寻找误差原理后,再计算自动定标系统的检验值,从而大大地提高了观测精度。
The servosystems of a solar radio telescope at the Yunnan Observatory are transformed and renewed by using the automatic control techniques and then they may be used to track the Sun automatically. The tracking accuracy can be obtained from the measurements of the HPBW of the antenna and of the degree of deviation of the tracking, with the error in eight hours being less than 0°.01, which can meet the needs for the tracking.The formula for calculating the calibration accurary is improved and the tested value of the automatic calibration system of the solar radio telescope is recalculated after searching for the reasons for producing the observation error theoretically, thereby making a great improvement on the observational accuracy.
出处
《云南天文台台刊》
CSCD
1992年第4期31-39,共9页
Publications of the Yunnan Observatoty
关键词
射电望远镜
观测
定标精度
Radio telescope Solar radio radiation Observational error
