enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Signal-to-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Signal-to-noise_ratio

    Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to noise power , often expressed in decibels .

  3. Peak signal-to-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Peak_signal-to-noise_ratio

    Download as PDF; Printable version; In other projects ... Peak signal-to-noise ratio ... is an engineering term for the ratio between the maximum possible power of a ...

  4. Signal-to-noise ratio (imaging) - Wikipedia

    en.wikipedia.org/wiki/Signal-to-noise_ratio...

    Traditionally, SNR is defined to be the ratio of the average signal value to the standard deviation of the signal : [2] [3] = when the signal is an optical intensity, or as the square of this value if the signal and noise are viewed as amplitudes (field quantities).

  5. Structural similarity index measure - Wikipedia

    en.wikipedia.org/wiki/Structural_similarity...

    Download as PDF; Printable version; ... (MSE) or Peak signal-to-noise ratio ... is the complex wavelet transform of the signal and is the complex ...

  6. SINADR - Wikipedia

    en.wikipedia.org/wiki/SINADR

    where is the average power of the signal, quantization error, random noise and distortion components. SINADR is usually expressed in dB. SINADR is a standard metric for analog-to-digital converter and digital-to-analog converter. SINADR (in dB) is related to effective number of bits (ENOB) by the following equation:

  7. SINAD - Wikipedia

    en.wikipedia.org/wiki/SINAD

    The ratio of (a) total received power, i.e., the signal to (b) the noise-plus-distortion power. This is modeled by the equation above. [2] The ratio of (a) the power of a test signal, i.e. a sine wave, to (b) the residual received power, i.e. noise-plus-distortion power. With this definition, it is possible to have a SINAD level less than one.

  8. Noise (electronics) - Wikipedia

    en.wikipedia.org/wiki/Noise_(electronics)

    The noise is a summation of unwanted or disturbing energy from natural and sometimes man-made sources. Noise is, however, typically distinguished from interference, [a] for example in the signal-to-noise ratio (SNR), signal-to-interference ratio (SIR) and signal-to-noise plus interference ratio (SNIR) measures.

  9. Noise (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Noise_(signal_processing)

    Noise-equivalent target, intensity of a target when the signal-to-noise level is 1 [2] Equivalent noise resistance, a measure of noise based on equivalent resistor; Carrier-to-receiver noise density, ratio of received carrier power to receiver noise; Carrier-to-noise-density ratio, Spectral signal-to-noise ratio