Title :
Enhanced architecture to increase the dynamic range of SDR receivers
Author :
Cruz, Pedro Miguel ; Carvalho, Nuno Borges
Author_Institution :
Inst. de Telecomun., Univ. de Aveiro, Aveiro, Portugal
Abstract :
This paper proposes an architecture to increase the dynamic range of the analog to digital signal conversion. Preferably, such an architecture will witness more applicability in the wideband digital receivers for software-defined radio. It is based in passive circuitry followed by two analog-to-digital converters that acquire the incoming analog signal, and then digital signal processing is applied to reconstruct the signal. We will demonstrate clear improvements related to the case when only one analog-to-digital converter is used. Also, this architecture will be validated through several simulations, in which it will be subjected to common modulated signals that confirms the validity of such an architecture.
Keywords :
analogue-digital conversion; radio receivers; signal processing; software radio; SDR receivers; analog to digital signal conversion; enhanced architecture; software-defined radio; wideband digital receivers; Analog-digital conversion; Computer architecture; Digital signal processing; Dynamic range; Receivers; Signal to noise ratio; Wideband; Analog-to-digital conversion; dynamic range; software-defined radio receivers;
Conference_Titel :
Radio and Wireless Symposium (RWS), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-7687-9
DOI :
10.1109/RWS.2011.5725481