FIGURE 7 



PARTIAL COHERENCE FUNCTIONS 

 1. i2 



2 



ly' 



11 yy 



Y 



yi 



'2y.l 



2y.l 5 s V2-1 



3yl,2l 



3yl,2 . . 'y3-l,2 



^33-1,2 yyl,2 



FIGURE 8 



MULTIPLE COHERENCE FUNCTIONS 

 S - S 



'y:x 



yy nn 



'yy 



2 r 2 1 2 



Single Input y^.^ =1-11- y-,^ = Y-,, 



Two Inputs Y 



^ 2][. 2 



y:x = ^ "LI' "^lyJU '^^y 



..)] 



Three Inputs y = 1 - 

 ^ 'y:x 



1-Y?..lfl -YLjfl 



lyi 



2ylj r '3yl,2 



? 7 7 7 



For 3 uncorrelated inputs, v = v^ + v^ + v^ 



'y:x 'ly '2y ' 3y 



122 



