抵偿投影最大适用范围及最大投影变形最小参数确定方法

A Method for Determining the Maximum Applicable Range and the Minimum Parameter of the Maximum Projection Distortion of the Compensated Projection

为了满足相关规范对测区最大投影变形的控制要求,需要采取措施抑制测区投影变形,无论是抵偿投影面高斯正形投影或者任意带高斯正形投影,或者以上两种方式的结合,都有必要确定该投影方法满足最大投影变形限差条件的最大可适用范围,还有必要根据项目确定的范围对投影最大投影变形进行判定,并进行投影参数的科学选择。研究了满足最大投影变形限差条件的最大可适用范围,对工程最大投影变形分析方法进行了讨论,并研究了基于最大投影变形最小化的抵偿投影参数确定方法。

Measures to suppress the projection deformation in the survey area are needed to meet the control requirements of the relevant specifications for the maximum projection deformation.The offset projection plane Gauss orthomorphic projection or the arbitrary band Gaussian orthomorphic projection,or the combination of the above two methods,-involve the determin eation of the maximum applicable range of the projection method to meet the maximum projection deformation limit condition,-it is also necessary to determine the maximum applicable range and to select the projection parameters scientifically.In this paper,the maximum applicable range of the maximum projection deformation is studied,the analysis method of Engineering maximum projection deformation is discussed,and the method to determine the compensation projection parameters based on the minimum maximum projection deformation is probed.