## An estimate of the variation of a band-limited process

- Athanasios Papoulis
- IEEE Trans. Information Theory
- 1964

A basic problem in signal theory is the reconstruction of a band-limited function f(i) from its sampled valuef(nT). Because of a number of errors, the computed or physically realized signal is only approximately equal to f(i). The most common sampling errors are: round-off of f(nT), truncation of the series generating f(0, aliasing of frequency components… (More)