Demodulation method and demodulator
The demodulation method addresses noise amplification issues in existing technologies by employing orthogonalization and regression line-based sign determination, simplifying calculations and improving BER performance.
JP2026116594APending Publication Date: 2026-07-10AUDIO TECHNICA CORP
Patent Information
- Application Number
- JP2024233228
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-07-10
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Figure 2026116594000001_ABST
Abstract
To provide a demodulation method and demodulator that can reduce the BER through simple processing, even if the modulated signal contains noise. [Solution] A demodulation method for demodulating a modulated signal using a phase-shift modulation method or a frequency-shift modulation method, comprising: an orthogonalization step S1 for orthogonalizing a received modulated signal M to obtain phase information; a regression line derivation step S2 for determining a regression line from the phase information obtained in the orthogonalization step S1; and a sign determination step S3 for determining the sign based on the degree of slope of the regression line.
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Citation Information
Patent Citations
Demodulation determination method
JP2014068218A