A single-channel cross-correlation technique for resistance noise measurements is introduced via dual-frequency modulation and software demodulation, achieving accurate spectra and 7 dB SNR gain.
Thyzel, Software-defined lock-in amplifier (version 0.0.2), Zenodo 10.5281/zenodo.18631374 (2026)
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Cross-correlation on a single channel for resistance noise measurements
A single-channel cross-correlation technique for resistance noise measurements is introduced via dual-frequency modulation and software demodulation, achieving accurate spectra and 7 dB SNR gain.