عنوان مقاله [English]
نویسنده [English]چکیده [English]
This paper describes the determination of the weighted matrix of observations through variance and co-variance matrices. In this paper, a new method is proposed that can solve the design problem of a "suitable criteria matrix". This method is similar to the least squares adjustment of surveying observations and, based on objectives of control networks, it can create the required precision under practical conditions, that is to provide the precision of design with minimum of facilities or safe design with required precision and minimum facilities.