METHODS FOR TRANSMITTING A WAVEFORM HAVING A CONTROLLABLE ATTENUATION AND PROPAGATION VELOCITY

摘要

Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin = De-ASD[x-vSDt] , where D is a magnitude, Vin is a voltage, t is time, ASD is an attenuation coefficient, a nd vSD is a propagation velocity; and (b) being truncated at a maximum value. A n exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential wavefo rm generator; an output recorder coupled to the transmission line under test; a n additional transmission line coupled to the transmission line under test; an d a termination impedance coupled to the additional transmission line and to a ground.