Nithiroth Pornsuwancharoen

2 papers indexed

arxiveess.SP2026-07-24

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 phase evolution and Wiener phase noise. By reformulating phase tracking into the innovation domain, re…

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arxiveess.SPphysics.app-ph2026-07-24

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 presents an overlapped sampling-intervals zero-crossing fitting method (OS-ZFM), which introduces a st…

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