摘要
经典菲列罗公式要求参与计算的各三角形闭合差相互独立,对方向独立的三角形网只能计算出近似的测角中误差,而广义菲列罗公式因要计算一个阶数等于三角形闭合差个数的矩阵的逆而限制了它的应用。本文推荐了一个实用菲列罗公武,用它计算的结果很接近广义菲列罗公式计算的结果,但计算工作量比用广义公式少得多。
The classical Ferrelo's formula requires that the triangulation errors of closure participating the computation being independent of each other. Therefore it can only give an approximate mean error of the measured angles for the direction-independent triangulation network. The generalized Ferrelo's formula has limited applications because it should calculate the inverse of a matrix whose order equals the number of the triangulation's error of closure. This paper derives a practical Ferrelo's formula.The result of calculation using this formula can approximate that of the generalized Ferrelo's, and the amount of calculation is much less.
出处
《勘察科学技术》
1993年第2期51-53,共3页
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