Advanced Ultra Broad Band Direct Conversion Digital Receiver

Crossfield Technology proposes an innovative direct conversion receiver and digital signal processor system that provides ultra wideband frequency coverage at ultra high frequency resolution. Key features of Crossfield's ultra wide band receiver and signal processor design include: Ultra wide band direct conversion (zero-IF or near-zero-IF) using state-of-the-art SiGe analog-to-digital converter technology. An innovative parallel digital signal processor design based on ultra-high performance, commercial off-the-shelf, components implemented in 90 nm CMOS technology that computes the Fourier transform and power spectral density (PSD) in near-real-time and at a break-through performance level, even for the exceptionally large transforms required to achieve 0.1 Hz resolution over a 1 GHz bandwidth. Modular system architecture using a next generation switched backplane configured in a mesh routing topology for ultra-high bandwidth between direct conversion receiver and parallel digital signal processors.