摘要
对于无起算数据的秩亏自由网,其观测值改正数是一组与控制网参考系选择无关的不变量.本文根据秩亏自由网平差中未知参数在最小二乘准则下的一般解,通过选择不同的参考基准,证明了观测值改正数与未知参数初值选择的无关性质.整个推导过程直观明了,有助于加深对秩亏自由网平差的几何意义及性质的理解,便于实际应用.
The observation correct number is a set of invariant data which have no relationship with control network＇s reference frame in rank defect free network without initial data.Based on the unknown parameter＇s general solution in rank defect free network adjustment under the least squares principle,the independence relationship between observation correct number and unknown parameter＇s initial value selection is revealed according to choose different reference data.The whole derivation process,which will help to deepen the understanding of rank defect free network adjustment＇s geometric significance and property,is intuitive and clear.It is convenient to be used in practice.
出处
《吉林建筑工程学院学报》
CAS
2011年第6期15-17,共3页
Journal of Jilin Architectural and Civil Engineering
关键词
观测值改正数
秩亏自由网
平差
参考系
observation correct number
rank defect free network
adjustment
reference frame
