4 papers
Innovation-Domain Decision-Directed Phase Tracking for Wiener Phase Noise in Fast Rayleigh Fading
Ura Klongklaew, Nithiroth Pornsuwancharoen, Phichai Youplao
This letter proposes an innovation-domain decision-directed phase tracking (ID-DDPT) architecture for coherent detection over Rayleigh fading channels with temporally correlated ph…
Continuous Intra-Symbol Phase Noise Tracking for THz OFDM via Polynomial Reconstruction
Sawatsakorn Chaiyasoonthorn, Ura Klongklaew, Phichai Youplao
Terahertz (THz) communication systems for sixth-generation (6G) networks are severely impaired by Wiener phase noise (WPN), whose innovation variance at sub-THz carriers is substan…
Noise-Robust Frequency Estimation via Overlapped Sampling-Intervals Zero-Crossing Fitting
Phichai Youplao, Nithiroth Pornsuwancharoen, Yusaku Fujii
The trade-off between noise averaging and temporal resolution fundamentally limits conventional zero-crossing frequency estimators under dynamic and noisy conditions. This paper pr…
An Optical Method for Evaluating the Mechanical Properties of Wires Under Impact Tensile Load
Phichai Youplao, Hadi Nasbey, Akihiro Takita +2
The dynamic properties of materials utilized in architecture or engineering applications can significantly affect their performance under dynamic or impact loading conditions. To e…