frequency domain bandwidth extension signal; a time-to-frequency converter configured to transform the decoded audio signal into a frequency domain decoded audio signal; a combiner configured to combine the frequency domain decoded audio signal and the frequency domain bandwidth extension signal in order...
Corner frequency为随着频率增加, flicker noise和thermal noise相等的频率点 MOS的Corner frequency fc一般在10 MHz to 50 MHz for nanometer transistors 7.3 Representation of Noise in Circuits Input-Referred Noise V_{in,noise,rms}=\frac{V_{out,noise,rms}}{A_v} \\ 对于多级系统, 第一级噪声影响最...
另外,由于电路中的每一个器件都会贡献噪声,我们需要计算与推导才能得到电路对输出端贡献的总噪声,详见[1][2]。 三、时域与频域中的噪声 Noise in Time & Frequency domain 由于噪声是一种随机信号,所以我们难以直接确定噪声在时域上的波形。为了展示电阻的噪声,我们绘制了100个电阻的噪声波形(图3中仅展示前三个)...
curves in the frequency domain using the Fourier transform is not appropriate, because of difficulties in choosing a correct and efficient cutoff frequency. ... P Millet,V Ibá?Ez,J Delforge,... - 《Neuroimage》 被引量: 101发表: 2000年 Frequency domain medianlike filter for periodic and qu...
Spectral and temporal noise shaping are then used to minimize the perception of noise in frequency and in time. Initial experiments at 16 kb/s demonstrate the validity of shaping the noise in time as well as in frequency.关键词: Bit rate Fasteners Frequency domain analysis Noise shaping Phase ...
From the Rayleigh wave polarization analysis, we retrieve the back azimuth to the noise sources in the time-frequency domain. Noise source modeling enables us to locate the associated generation areas at different times and frequencies. We analyze the distribution of secondary microseism sources in ...
In addition, a pre-filtering observation strategy is proposed to further improve the convergence speed of the algorithm and reduce the steady-state error caused by the iterative process in the system. Through the analysis of the amplitude of the noise in the time domain and the frequency domain...
a Experimental schemes of laser frequency noise measurements, using optical cross-correlation technique or heterodyne beat with the external cavity diode laser (ECDL) locked to a high-Q crystalline resonator using the Pound-Drever-Hall technique. b Schematic in the frequency domain of optical cross-...
Stripe noise always occurs in line-scan images which can seriously affect the image quality for future usage. To eliminate the stripe noise from the polluted line-scan images, a hybrid approach for stripe noise removal in frequency domain was presented. Firstly, the mathematical model of the stri...
To quantify the ‘ERD difference’ in the time-frequency domain in each subject’s brain under conditions separate from PAL-S, we performed magnetoencephalography (MEG) recordings during an emotional face perception task independent of PAL-S. Results Effect of social noise on decision change in ...