Measurement of cement porosity by centroid frequency profiles of ultrasonic grain noise.
Luis VergaraJorge GosálbezJ. V. FuenteRamón MirallesIgnacio BoschPublished in: Signal Process. (2004)
Keyphrases
- low frequency
- measurement error
- user profiles
- high frequency
- noisy data
- image noise
- noise reduction
- weak signal detection
- noise model
- frequency response
- noise free
- noise level
- neural network
- signal to noise ratio
- background noise
- short time fourier transform
- additive noise
- missing data
- high pass
- low snr
- frequency domain
- multiscale
- sensor noise
- frequency distribution
- weak signal
- image processing