Sentence examples for noise approx from inspiring English sources
It is shown that a 6dB reduction in sound pressure level is obtainable by adding reference microphones, error microphones, a speaker, and some acoustical foam into the system even though the length of the noise cancelation system is small, approx. 6", compared to the fundamental wavelength of the noise, approx 23".
Based on the WSJCAM0 corpus [59], SimData is artificially generated by convolving clean WSJCAM0 signals with measured RIRs, as well as by adding additional measured noises with a desired-signal-to-noise-ratio (DSNR) of approx. 20 dB.
begin{array}{*{20}l} &mathcal{H}_{v}: boldsymbol{y} t,k) approx boldsymbol{v} t,k) text{background noise is} &text{dominant.} end{array} (5c).
To reduce background noise, the respective band at approx. 635 bp was gel-purified using the QIAquick Gel Extraction Kit (Qiagen, Hilden, Germany).
The spectrum portion of harmonic amplitudes is summed from low frequencies corresponding to the index NFBLO (approx. 50 70 Hz), the noise portion is calculated from high frequencies corresponding to the index NFBHI (approx. 1500 2000 Hz depending on the gender type).
Although graphene films can be used to detect very infinitesimal physical quantities, the quantum fluctuation noise Δx zp of graphene NEMS devices (approx. 10-2 nm), could easily surpass the magnitudes of signals caused by external influences.
The overall PSD of the ambient noise level can be approximated as [39], NL f) approx 50-18log_{10}f (30).
Thus, the channel between the MS-n and the RS-r can be modeled as a κth-power path loss (loss (approx frac {1}{l_{textit {nr}}^{kappa }})) with additive white Gaussian noise (AWGN).
In a practical setup, in order to compute the noise variance due to leakage, we need to use the approximation (hat {v}_{k-1} approx v_{k-1}), where (hat {v}_{k-1}) is estimated by the filtering method.
To estimate the quantization noise variance ({sigma _{n}^{2}}), we use the relationship ({sigma _{n}^{2}} approx delta ^{2}/12), which is exact for a dithered uniform quantizer and a good approximation for a non-dithered scalar uniform quantizer.
