Optimal real-time interpolation for D/A conversion of sparsely sampled signals
J.M. de Carvalho, J.V. Hanson · Electronics Letters · 1982
Interpolative cubic splines are considered for real-time D/A conversion applications. Four methods are examined that evaluate the derivatives at the end-points of the interval. The performance evaluation of these methods is based on both a mean-square-error criterion and a figure of merit which considers hardware complexity.