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.
For this purpose, the same RMS current was applied to the DUT in both circuits: In the single-reference circuit (see Fig
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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.