1 research outputs found
Method for reducing of noise by improving signal-to-noise-ratio in wireless LAN
The signal to noise ratio (SNR) is one of the important measures for reducing
the noise.A technique that uses a linear prediction error filter (LPEF) and an
adaptive digital filter (ADF) to achieve noise reduction in a speech and image
degraded by additive background noise is proposed. Since a speech signal can be
represented as the stationary signal over a short interval of time, most of
speech signal can be predicted by the LPEF. This estimation is performed by the
ADF which is used as system identification. Noise reduction is achieved by
subtracting the reconstructed noise from the speech degraded by additive
background noise. Most of the MR image accelerating methods suffers from
degradation of acquired images, which is often correlated with the degree of
acceleration. However, Wideband MRI is a novel technique that transcends such
flaws.In this paper we proposed LPEF and ADF for reducing the noise in speech
and also we demonstrate that Wideband MRI is capable of obtaining images with
identical quality as conventional MR images in terms of SNR in wireless LAN