SPACE-TIME CORRELATION FUNCTION OF A NOISE-FIELD
 
                 
                
                    
                                        
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Graphical Abstract
 
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Abstract
    The differential equation satisfied by the noise-field,in a space containing noise sources,was derived.The general expression was given of space-time correlation function of a noise-field dependent on the refraction index of medium,boundary conditions and the space-time characters of the noise sources.Some particular cases were calculated.
 
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