@article{oai:ipsj.ixsq.nii.ac.jp:00215835,
 author = {林, 健太朗 and 濱政, 光 and 田中, 勇気 and 藤橋, 卓也 and 猿渡, 俊介 and 渡辺, 尚 and Kentaro, Hayashi and Hikaru, Hamase and Yuki, Tanaka and Takuya, Fujihashi and Shunsuke, Saruwatari and Takashi, Watanabe},
 issue = {1},
 journal = {情報処理学会論文誌},
 month = {Jan},
 note = {広く分散配置した複数のアンテナから電波を放射して，室内のIoT（Internet of Things）デバイスやUAV（Unmanned Aerial Vehicle）に対し無線で電力を供給する電波電力伝送が注目を集めている．これまで我々は，各アンテナが放射する電波に適切な位相制御を与えることで，給電対象の位置に強め合う干渉を意図的に作り出し，電力供給を効率化する分散協調型の電波電力伝送の開発に取り組んできた．本稿では分散協調型の電波電力伝送において，受電端末の受信電力を最大化する最適な位相を求めるための新しい位相最適化手法を提案する．提案手法は，様々な位相のもとで受信電力を測定し，適切な演算を行うことで最適な位相を得るものであるが，このとき非線形関数への曲線回帰を取り入れることによって，受信電力の測定回数を削減しながら最適な位相を算出する点が特徴である．計算機シミュレーションによる評価から，既存の位相最適化手法と比較して，受信電力の測定回数を削減できることと，実環境において生じうる観測する受信電力への雑音への耐性を持つことを確認した．, The technology of wireless power transfer to indoor Internet of Things (IoT) devices and unmanned aerial vehicle (UAV) by radiating microwaves from multiple widely distributed antennas has attracted much attention. We have been working on the development of distributed cooperative microwave power transmission, in which constructive interference is intentionally created at the target location by applying appropriate phase control to the microwaves emitted by each antenna to improve the efficiency of power supply. In this paper, we propose a new phase optimization method to find the optimal phase that maximizes the received power of the receiving terminal in the distributed cooperative power transmission. The proposed method obtains the optimal phase by measuring the received power under various phases. The feature of the proposed method is that it can calculate the optimal phase while reducing the number of received power measurements by incorporating the curve regression to a nonlinear function. From the evaluation of computer simulations, we confirm that proposed method can reduce the number of received power measurements compared to existing method, and that it is tolerant of noise on the observed received power that may occur in real environments.},
 pages = {172--181},
 title = {分散協調型の電波電力伝送における位相最適化アルゴリズム},
 volume = {63},
 year = {2022}
}