提高航测资料精度和图件质量的数学方法

虚拟切割线调平法是一种提高航测资料精度和图件质量的新的数据处理方法。该方法以误差理论为基础，根据场的分布理论，利用多项式数据拟合对测量数据进行分析、处理，以便消除迭加在测量值中的系统误差，从而达到消去因误差引起的相邻测线间场的水平的不一致以及出现在等值图上的波纹现象的目的。该方法已成功地应用于某测区的高精度构造航磁资料的处理。

MATHEMATICAL METHOD TO ENHANCE AIRBORNE SURVERY DATA ACCURACY AND CHART''S QUALITY

Subjunctive cutting-line level adjustment method is a new data processing method to enhance the accuracy of airborne survey data and their chart's quality. This method is based on error theory. According to the field distribution theory,the measured data were analysed and processed using polynomial fitting technique to erase systemic errors overlapped to the measured value so as to eliminate different field levis among neighbouring traverses and the wave phenomenon appeared on the contour map caused by errors. This method has been successfully applied to the high accuracy aeromagnetic data processing from structures of some region.