Filter design targets with reduced jitter effect
S. Mneina, Gert O. Martens · 2002
Filter design for data transmission involves the search for functions with certain properties, which when used as targets, the resulting filter will be appropriate for a predetermined task, such as, reduction of jitter effect. A widely used class of baseband pulses that satisfy the Nyquist criterion for eliminating intersymbol interference (ISI) in narrowband communications are pulses with zero crossings at the sampling instants corresponding to the standard raised cosine spectrum. In this paper an alternative pulse is proposed, one with zero derivatives at the sampling instants and a corresponding triangular spectrum. Filters designed with this triangular spectrum are found to have better performance in the presence of jitter than filters designed with the standard raised cosine spectrum as the target function.