Design and ASIC Implementation of Root Raised Cosine Filter
Raised cosine filter is a FIR filter that can be used to counter
many problems of communication such as the Inter symbol
interference. The rectangular pulse occupies a large bandwidth
so an alternative to rectangular pulse is a sinc pulse, which
reduces the bandwidth and inter symbol interference. The
rectangular pulse is passed through the root cosine filter a set
of FIR filters to pulse shape the pulses to sinc. The
specification of the root raised cosine FIR filter considered in
this design is sampling frequency of 15.36 MHz and the cutoff
frequency of 1.92 MHz, which is suitable to 3G-WCDMA.