Phase and Group Delays In the case of the carrier signal we have ec(O1)+0e(0)0c(02 20c which is seen to be the same as the phase delay if only the carrier signal is passed through the system Copyright C 2001, S K MitraCopyright © 2001, S. K. Mitra 10 Phase and Group Delays • In the case of the carrier signal we have which is seen to be the same as the phase delay if only the carrier signal is passed through the system c c c c c u c     −    +   − ( ) 2 ( ) ( ) 