Improved Methods of Simulating Time Delays

A new group of time-delay polynomial approximations are obtained by trial and error methods. The results of the trial and error procedure suggest an analytic method for finding the new approsimations. The new approximations and their usable bandwidths are tabulated for second-through sixth-order polynomials. Delay vs. frequency graphs of the fourth-and fifth-order polynomials are compared with several previously published approximations. Also methods are suggested for delaying short signals and step functions for long periods.