Low Frequency Noise Characterization and Signal-to-Noise Ratio Optimization for Silicon Hall Cross Sensors

Optimal signal-to-noise ratio for silicon nanowire biochemical sensors.

The signal-to-noise ratio (SNR) for silicon nanowire field-effect transistors operated in an electrolyte environment is an essential figure-of-merit to characterize and compare the detection limit of such devices when used in an exposed channel configuration as biochemical sensors. We employ low frequency noise measurements to determine the regime for optimal SNR. We find that SNR is not signif...

Blind Frequency and Symbol Rate Estimation for MSK Signal under Low Signal-to-Noise Ratio ⋆

We investigate a novel blind estimator combination of carrier frequency and symbol rate of an complex MSK modulation under low signal-to-noise ratio (SNR). The carrier frequency is estimated by using Modified Rife frequency estimator at first and the referenced signal is constructed consequently. Then, the received signal is transformed to baseband by means of correlation with the referenced si...

Signal-to-Noise Ratio Estimation

Of the many measures that characterize the performance of a communication receiver, signal-to-noise ratio (SNR) is perhaps the most fundamental in that many of the other measures directly depend on its knowledge for their evaluation. In the design of receivers for autonomous operation, it is desirable that the estimation of SNR take place with as little known information as possible regarding o...

On the Definition of Signal-To-Noise Ratio and Contrast-To-Noise Ratio for fMRI Data

Signal-to-noise ratio, the ratio between signal and noise, is a quantity that has been well established for MRI data but is still subject of ongoing debate and confusion when it comes to fMRI data. fMRI data are characterised by small activation fluctuations in a background of noise. Depending on how the signal of interest and the noise are identified, signal-to-noise ratio for fMRI data is rep...

Digital Transmission : Carrier - to - Noise Ratio , Signal - to - Noise Ratio , and Modulat ion Error Ratio