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This paper presents a reconfigurable, high-speed channel filter architecture for multi-standard Software Defined Radio (SDR) receivers using Residue Number Systems (RNS). The channel filters in the channelizer of an SDR extract multiple narrowband channels corresponding to different communication standards from the wideband input signal. These filters must operate at the highest speed in the digital front-end as it is placed immediately after the ADC. For a given moduli set, the authors' architecture can be reconfigured for multiple standards with varying number of taps.
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