noise= wgn(m,n,power)generates anm-by-nmatrix of white Gaussian noise samples in volts.powerspecifies the power ofnoisein dBW. example noise= wgn(m,n,power,imp)specifies the load impedance in ohms. noise= wgn(m,n,power,imp,randobject)specifies a random number stream object to use when...
White noise: In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. White noise draws its name from white light, although light that appears white, generally it does not have a flat power spectral density...
We study the long time behaviour of a nonlinear oscillator subject to a random multiplicative noise with a spectral density (or power-spectrum) that decays as a power law at high frequencies. When the dissipation is negligible, physical observables, such as the amplitude, the velocity and the ...
[Y,var] = awgn(___)also returns the total noise variance used to produce random noise samples in linear scale. Examples collapse all Add AWGN to Sawtooth Signal Create a sawtooth wave. t = (0:0.1:60)'; x = sawtooth(t); Add white Gaussian noise and plot the results. ...
Random number source— Random number source Global stream (default) | mt19937ar with seed Initial seed— Noise generator initial seed 67 (default) | nonnegative integer Simulate using— Type of simulation to run Code generation (default) | Interpreted execution ...
如果假设data y 有noise(Gaussian with std \sigma),只需把上式所有 K(X,X) 换成K(X,X) + \sigma^2I_n 即可。 KL expansion (choosing basis) GP的sampling空间是linear space,那么就可以有basis functions的概念。如果选定一组(deterministic)basis function,randomness就可以从function转移到coefficients上。
To generate repeatable white Gaussian noise samples, do one of the following: Userng(seed) before calling theawgnfunction to generate repeatable random noise. Provide a staticseedvalue as an input toawgnexcept when the input is adlarrayobject. ...
Copy Code Copy Command Specify a seed to produce the same outputs when using a random stream in which you specify the seed. Create an AWGN channel System object™. Set the NoiseMethod property to 'Variance', the RandomStream property to 'mt19937ar with seed', and the Seed property to ...
网络高斯随机噪声;高斯随机杂讯 网络释义
As will be seen later in the text, many physical phenomenon can be modeled as Gaussian random variables, including the thermal noise encountered in electronic circuits. Although many students may not realize it, they are probably quite familiar with the Gaussian random variable, for it is this ...