Novel Architecture for Communication Channelizer

The baseband design for a cellular base-station or a satellite hub requires a channelizer which acts as digital front end of a receiver. Polyphase FFT (PFFT) channelizer structure is a resource intensive approach to perform this functionality. When the sampling rate requirements and channel spacing requirements differ the standard architecture of a PFFT channelizer has to be modified to meet this implementation constraint. For a communication channelizer the requirements of output sampling rate and carrier spacing have an integral relation with the channel symbol rate. The paper proposes a novel simpler and resource efficient architecture for this scenario.