数字化曲线的附有参数的条件平差

Conditional Adjustment Method with Parameters for Digitizing Curve

本文针对数字化地图的特点,提出一圆曲线拟合方程,采用附有参数的条件平差法来估计拟合曲线的参数,给出了一套严密的计算方法,通过计算实例验证了该方法的有效性和可行性,并对参数进行了精度评定。

The paper puts forward a fitting equation of circle curve according to the characteristics of the digitizing curve. The conditional data processing method with parameters is adopted in the paper to estimate the parameters of the fitting-curve and a strict algorithm is come up with further. The validity and feasibility of the method are proved by an example in detail and the precision of the parameters is assessed.