shows a desired signal, the noise floor
, and a signal below the noise
In five patients (seven ears) in our study whose hearing thresholds were 60 dB HL or worse by click ABR, DP-grams showed that emission amplitudes were significantly above the noise floor
at 500 Hz, 750 Hz, and 1 kHz in five ears.
A second trace shows the converter noise floor
as a reference.
Another worry suggests that the cumulative effect of wide scale proliferation of UWB devices would have a cumulative effect on the noise floor
and raise it to an unacceptable level.
The size of the perforation was also inversely related to the level of the noise floors
: The larger the perforation, the lower the noise floor
The noise floor
of an AFM in the z direction is quantified by setting the scan size to near zero, capturing an image on a featureless surface, and measuring the root mean squared roughness on this image.
So that a comparison of the results would be meaningful, the gain of the analog chain was set high enough that the contribution from the ADC noise floor
of the DREX would be negligible.
The best way to reduce noise is obvious; compare oscilloscopes and choose the one with the lowest noise floor
Each pulse, when applied through a Fourier Transform formula, can be shown to exist simultaneously across an extensive band of frequencies; however, the distributed energy of the pulse at any given frequency exists in the noise floor
Test data is analyzed to determine loop length, cable balance, and noise floor