Based on the analysis of known methods technical solutions, a two-stage method calibration receiving active phased array antenna (AFAR) long-range detection radar station (RLS) is proposed. The peculiarity this algorithm, which does not require physical modification and use expensive measuring equipment, makes it possible to determine difference in characteristics AR channels compensate for dif...

In this study, we propose a three-stage weighted sum method for identifying the group ranks of alternatives. In the first stage, a rank matrix, similar to the cross-efficiency matrix, is obtained by computing the individual rank position of each alternative based on importance weights. In the second stage, a secondary goal is defined to limit the vector of weights since the vector of weights ob...

Data Envelopment Analysis (DEA) as a non–parametric method is used to measure relative performance of organizational units. The aim of this paper is to develop a new model to evaluate the efficiency of a general two-stage network structures proposed by Li et al.  (2012) for measuring the performance of Decision Making Units (DMUs). In addition, this paper expands the work of Li et al. (2012) an...