A novel and efficient multi-resolution channelizer for software defined radio

There are number of software defined radio applications in which a radio receiver must access multiple simultaneous channels with different channel bandwidths. This paper presents the architecture of a novel and extremely efficient implementation of such a channelizer. The receiver described here simultaneously forms ten 5-MHz wide channels and one hundred 0.5 MHz wide channels spanning a 50 MHz input bandwidth. Multirate signal processing techniques are used throughout the processing chain to obtain extremely low processing computational workload.