The digitalization errors of topographic map result in geometry change for the objects on the earth. We can reduce geometry change by means of measuring adjustment.

地形图数字化误差造成地物几何形变，采用测量平差的理论方法可以减弱形变。

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This paper presents a study on error processing of map digitized data with nonlinear least squares adjustment which is called damped least squares.

应用非线性最小二乘平差方法阻尼最小二乘法研究了数字化数据误差处理，并将该方法与最小二乘条件平差进行了比较。

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