Home > lukes_code > skyStares > noiseModel.m

noiseModel

PURPOSE ^

p=noiseModel( f, sigma_w, f_knee, alpha)

SYNOPSIS ^

function logp = noiseModel( f, sigma_w, f_knee, alpha )

DESCRIPTION ^

 p=noiseModel( f, sigma_w, f_knee, alpha) 
   Returns natural log og the noise power spectrum for given frequencies f
   with noise statistics sigma_w, f_knee and alpha
   p = ( 1 + (f_knee./x).^alpha ).*(sigma_w^2)

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function logp = noiseModel( f, sigma_w, f_knee, alpha )
0002 % p=noiseModel( f, sigma_w, f_knee, alpha)
0003 %   Returns natural log og the noise power spectrum for given frequencies f
0004 %   with noise statistics sigma_w, f_knee and alpha
0005 %   p = ( 1 + (f_knee./x).^alpha ).*(sigma_w^2)
0006 emConst = 5.7721566490153286060;
0007 logp = real( 2.*log(sigma_w) + log( 1 + (f_knee./f).^alpha ) )+emConst;
0008 %p = ( 1 + (f_knee./x).^alpha ).*(sigma_w^2);
0009 end

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