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[期刊论文] 作者：SHENYunzhong,LIUDajie,
来源：地球空间信息科学学报：英文版 年份：2004
Regularization method is an effective method for solving ill-posed equation. In this paper the unbiased estimation formula of unit weight standard deviation in...
[期刊论文] 作者：LIUChun SHIWenzhong LIUDajie,
来源：地球空间信息科学学报：英文版 年份：2003
On the basis of the principles of simple random sampling, the statistical model of rate of disfigurement (RD) is put forward and described in detail. According...
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