比嘉君（OB）の論文が IEEJ Transactions on Electrical and Electronic Engineering に掲載されました。

周期的擬似ランダム変調に基づく光相関領域反射計の空間分解能のサンプル数依存性を解明した比嘉君（OB）の論文が、IEEJ Transactions on Electrical and Electronic Engineering に掲載されました。

Y. Higa, K. Motoda, T. Kiyozumi, and Y. Mizuno, “Experimental evaluation of sample-number dependence of spatial resolution in PPRM-OCDR,” IEEJ Trans. Electr. Electron. Eng., vol. 21, no. 11, pp. 1740-1742 (2026).

Periodic pseudo-random modulation (PPRM) has recently been introduced to improve the spatial resolution of optical correlation-domain reflectometry (OCDR). In this study, we experimentally examined how the number of samples in one PPRM period affects OCDR performance. The spatial resolution improved as the sample number increased and reached its minimum at approximately 2000 samples, indicating the presence of an optimal sampling condition. These results provide practical guidelines for selecting modulation parameters in PPRM-OCDR systems.