专题图件面积量测中精度与平差问题初探——日产KP-80N型求积仪为量测工具  

INITIAL STUDY ON THE ACCURACY SPECIFICATION AND ERROR-DISTRI-BUTING ON THE AREA MEASUREMENT OF SPECIAL SUBJECT MAPS——USING THE KP-80N POLAR PLANIMENTER

作　　者：余素芬[1] 

机构地区：[1]中国科学院新疆地理研究所

出　　处：《干旱区地理》1991年第3期29-33,共5页Arid Land Geography

摘　　要：笔者根据量测1:1×10~5阿克苏河流域土地利用图的实验数据,从量测技术和被测图幅本身特点入手,探讨了它们与精度的关系.图斑面积量测误差主要与图斑的周长/单位面积值有关,并阐述了依其平差的科学性及按图斑面积比例平差的不合理性.The paper study the relations between the accuracy specification and the features ofmeasured map sheet and the measurement skill. It shows that the area measurment error re-late compactly with the girth/unit of figures. It not only inter preted the irrationality ofthe error-distributing according to figures area, but also set forth the rationality of the er-ror-distributing according to girth/unit of figures.

关 键 词：面积 测量 精度 平差 误差 

分 类 号：P218[天文地球—测绘科学与技术]