Full Form of SNR:
SNR Full Form is Signal-to-Noise Ratio. SNR is a measure used in analog and digital Communications to compare the signal strength to the level of background noise. It can be defined as the ratio of signal power to the noise power; it is often expressed in decibels. Signal-to-noise ratio measures the clarity of the signal in a circuit, wired or wireless transmission device. It is also abbreviated as SNR, S/N.A ratio higher than 1:1 indicates more signals as compared to noise. SNR is commonly used for electrical signals, but can be used to measure any form of signals.
The signal-to-noise ratio is defined as the ratio of the power of a signal and the power of background noise. The signal-to-noise ratio and dynamic range are closely related. Measuring signal-to-noise ratios require the selection of a reference signal. The S/N ratio can be increased by providing the source a higher level of the signal.
The communication engineers dealing with the signals and systems always tend to maximize this ratio. It is improved traditionally by increasing voltage on the source side or by modern methods like spread spectrum technology. SNR is of vital importance in all applications from broadcast receivers to mobile radio communications, cellular or wireless communications, two-way radio communications systems, satellite radio etc.