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.