Comparative analysis of signal functions, built on the basis of quadratic and cubic splines

Comparative analysis of extreme properties of selective signals, built on the basis of quadratic and cubic splines by means of eye-diagram aperture value criteria and energy redistribution in the signal, is carried out. It is shown that with optimum parameter selection one can obtain signals with necessary properties, it leads to simplifying the process of its practical realization at the stage of telecommunication systems design. In this regard the proposed method of the quadratic spline-approximation possesses sufficient realization simplicity, low computational complexity and adequacy of the standing practical problems.