Wide-band multipath A to D converter for Cognitive Radio applications

Alban Gruget (1, 2) , Morgan Roger (1) , van Tam Nguyen (2) , Caroline Lelandais-Perrault (1) , Philippe Benabes (1) , Patrick Loumeau (2)

1 E3S - Supélec Sciences des Systèmes
2 COMELEC - Département Communications & Electronique

This article presents a digital-enhanced radio frequency receiver for fast wide-band spectrum sensing. It is based on charge sampling and hybrid filter bank techniques. The charge sampling method is employed to design analog bandpass filters. Using a hybrid filter bank for wide-band analog-to-digital conversion improves the speed and resolution of the conversion. We propose to use these techniques in combination of frequencydivision multiplexing with time-division multiplexing to design an integrated, completely software reconfigurable and reliable backend of radio frequency receiver for cognitive radio applications.

Keywords: Analog-digital conversion; ADC; Bandpass charge sampling; Integration sampler; Hybrid filter bank; Wideband receiver; Wide-band sensing.; Wide-band sensing

Domains: Electronics; Signal and Image processing; Signal and Image Processing

Alban Gruget, Morgan Roger, van Tam Nguyen, Caroline Lelandais-Perrault, Philippe Benabes, et al.. Wide-band multipath A to D converter for Cognitive Radio applications. IEEE International Microwave Workshop Series on RF Front-End for Software-Defined and Cognitive Radio applications, Feb 2010, Aveiro, Portugal. pp.1-4. ⟨hal-00523214⟩