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i2rayjeanTb

PURPOSE ^

I2RAYJEANTB Rayleigh-Jeans brightness temperature

SYNOPSIS ^

function tb = i2rayjeanTb(i,f)

DESCRIPTION ^

 I2RAYJEANTB   Rayleigh-Jeans brightness temperature

    Convert intensities to "Rayleigh-Jeans" temperatures using the
    Rayleigh-Jeans scaling factor.

    The frequency and intensity vectors/matrices must have the 
    same size.

 FORMAT   i2rayjeanTb(i,f)
        
 OUT   tb   brightness temperatures [K]
 IN    i    intensities [W/m^2Hz]
       f    frequencies [Hz]

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

DOWNLOAD ^

i2rayjeanTb.m

SOURCE CODE ^

0001 % I2RAYJEANTB   Rayleigh-Jeans brightness temperature
0002 %
0003 %    Convert intensities to "Rayleigh-Jeans" temperatures using the
0004 %    Rayleigh-Jeans scaling factor.
0005 %
0006 %    The frequency and intensity vectors/matrices must have the
0007 %    same size.
0008 %
0009 % FORMAT   i2rayjeanTb(i,f)
0010 %
0011 % OUT   tb   brightness temperatures [K]
0012 % IN    i    intensities [W/m^2Hz]
0013 %       f    frequencies [Hz]
0014 
0015 % 2002-12-12   Created by Claudia Emde.
0016 
0017 
0018 function tb = i2rayjeanTb(i,f)
0019 
0020 boltzmann = constants('BOLTZMANN_CONST');
0021 speed_light = constants('SPEED_OF_LIGHT');
0022 
0023 tb = speed_light^2./(2*f.^2*boltzmann) .* i;

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