Delay distortion correction

IN FACSIMILE and data transmission systems the signals are largely transient in nature and are usually in the form of a modulated wave for transmission purposes. The modulating signals may be in the form of isolated pulses, periodic waves, or various other wave shapes depending upon the nature of the communication device or system. Modulated pulse envelopes are thus present in the transmission medium in various combinations of amplitude, duration, and relative positions. It is therefore necessary to consider the transient response characteristics of transmission systems and associated networks as well as their steady-state properties.