Channelizer for a multi-carrier receiver

摘要

A channelizer (22) for a multi-carrier receiver including a plurality of digital sub-band tuners (DSBTs) (274). Each DSBT (274) digitally filters individual carrier data bits from a digital multi-carrier data stream based on a programmable center frequency. Each DSBT (274) further digitally filters the individual carrier data stream based on a programmable bandwidth. The DSBTs (274) can be allocated based on modulation format, center frequency, or both. The channelizer (22) is therefore able to process narrowband carrier data streams as well as wideband carrier data streams. One embodiment of the channelizer (22) has a plurality of sub-channelizers (22) and a switch matrix (278). The sub-channelizers (22) filter individual carrier data streams from a multi-carrier data stream. The switch matrix (278) is coupled to the sub-channelizers (22) and routes the individual data streams to the sub-channelizers (22) in a desired configuration.