2024 年 13 巻 2 号 p. 14-17
To achieve ultrahigh-speed transmission using short-range multiple-input multiple-output (SR-MIMO) transmission, estimating the displacement of the facing transmitting (Tx) and receiving (Rx) antennas must be done with high precision, with installation in the opposite position with millimeter-order accuracy. When using the weighted centroid localization (WCL) method, which is a conventional position estimation method, the position estimation accuracy degrades as the Tx displacement and Rx antennas increase. In this letter, we propose a method to calculate the center of gravity position using the WCL method, considering the symmetry based on the Rx antenna with the largest received signal strength indicator. Additionally, computer simulation results demonstrate that the proposed method can achieve antenna position estimation with millimeter-order accuracy.
