The purpose of this paper is to develop a novel approach for predicting or completing expert weights in multiple attribute group decision making with intuitionistic fuzzy information. Firstly, the optimal preference a...
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ISBN:
(纸本)9781450372619
The purpose of this paper is to develop a novel approach for predicting or completing expert weights in multiple attribute group decision making with intuitionistic fuzzy information. Firstly, the optimal preference aggregation model is established for describing the relationship between expert preferences. The experts' preferences are mapping as preference points with equal weight into two-dimensional space, and expert preferences for the same attribute of same alternative are belong to a point set. Then, the optimal aggregation preference point whose sum of Euclidean distance between expert preference points is the shortest is calculated by the plant growth simulationalgorithm (PGSA). The closer the preference information is to the optimal aggregation preference point, the higher the expert weight is, and vice versa. Finally, in order to avoid falling into the trap of "the minority is subordinate to the majority", the final expert weight is obtained by modifying the predicted expert weight with iterative correction algorithm. Compared with other algorithms, the proposed method is more accurate to supplement the missing expert weight information. The effectiveness and superiority of the proposed method are illustrated by a typical example.
The application of UWB technology is mainly used for positioning systems both at home and abroad. Compared with conventional wireless communication technologies, UWB also has outstanding advantages such as large capac...
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ISBN:
(纸本)9781450372930
The application of UWB technology is mainly used for positioning systems both at home and abroad. Compared with conventional wireless communication technologies, UWB also has outstanding advantages such as large capacity, high speed, and low power [1]. UWB signals also have great advantages in data transmission performance. This paper proposes a method of combining AOA estimation in UWB MIMO system. Firstly, the tag position is located, and then the position information is packaged and sent to the base station along with other detection data, which is beneficial to the data transmission process. Position for real-time precise positioning. The adoption of MIMO technology can improve the spectrum efficiency and improve the system performance for the system. The AOA estimation can achieve accurate positioning accuracy by using multiple antennas.
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