Telecommunication Transmission

But this article is not about the MLA, it's about one finction of the MLA and that's measure group delay. And what is group delay? It is synonymous with envelope delay, phase delay, or differential phase. Basically, they all mean the same thing. Same may argue that there noes, but they are minineering texts refer to lot of mathematIEEE Dictionary tw "the derivative of radian phase with respect to radian frequency, dcpldw. It is equal to the phase delay for an ideal nondispersive delay device, but may differ greatly in actual devices where there is ripple in the phase vs. frequency characteristic."