Denoising CSI Signals Phase Correction: Obervation 2: 一 Subcarrier with the large magnitude of static values has small change of phase 、cFO Subcarrier 1 Path B Subcarrier 2 Path A 92. I/Q phasor representation in two subcarriers Motivation System design Experiments Conclusions 9/20Denoising CSI Signals Motivation System design Experiments Conclusions 9/20 ➢ Phase Correction: Obervation 2: — Subcarrier with the large magnitude of static values has small change of phase I/Q phasor representation in two subcarriers