Paper detail

Approximation of Discontinuous Signals by Exponential Sampling Series

We analyse the behaviour of the exponential sampling series $S_{w}^χf$ at jump discontinuity of the bounded signal $f.$ We obtain a representation lemma that is used for analysing the series $S_{w}^χf$ and we establish approximation of jump discontinuity functions by the series $S_{w}^χf.$ The rate of approximation of the exponential sampling series $S_{w}^χf$ is obtained in terms of logarithmic modulus of continuity of functions and the round-off and time-jitter errors are also studied. Finally we give some graphical representation of approximation of discontinuous functions by $S_{w}^χf$ using suitable kernels.