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本文从双程多卜勒测速概念出发,给出了双程多卜勒方程提出主要的测量方法和误差源,并对多卜勒测量方法的平均误差作了分析。为了直观起见,本文用几何法推导出多卜勒因子。本文在讨论一般常用的二种测量方法的基础上提出了一种比较理想的方法,这个方法已在实际设备中得到了应用。为了分析测速误差,文中提出了几种主要误差源,尤其是第十种误差源在自旋卫星采用某些特殊天线时必须予以考虑。最后着重分析了多卜勒测量方法和平均误差。在弄清楚平均误差概念的基础上,分析了影响此项误差的主要因素。
Based on the concept of two-way Doppler velocimetry, this paper presents the main measurement methods and error sources of the two-way Doppler equation and analyzes the average error of the Doppler measurement method. For the sake of intuition, this article deduces the Doppler factor geometrically. Based on the discussion of two commonly used measurement methods, this paper presents an ideal method, which has been applied in practical applications. In order to analyze the velocity error, several major error sources are proposed in this paper. Especially, the tenth error source must be considered when using some special antennas for spin satellites. Finally, the analysis of the Doppler measurement method and the average error. On the basis of clarifying the concept of average error, the main factors affecting the error are analyzed.