Title :
SDR based multi-band subsampling receivers for GNSS applications
Author :
Messaoud, Mohamed Anis ; Ghannouchi, Fadhel M. ; Barrak, Rim ; Ghazel, Adel
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
Abstract :
The advent in analog to digital converter technology and the available processing power of today´s digital signal processors and general purpose processors as well as the available high speed FPGAs enables the design of radio receivers to move a step closer toward the ideal software defined radio (SDR) architecture. This paper presents some of the possibilities offered by the SDR by taking the example of a subsampling multi-standard GNSS receiver. The main differences between a superheterodyne and a subsampling receiver are presented and the sampling frequency selection procedure is detailed. Finally a test setup for the GNSS receiver as well as the frequency conversion results are shown.
Keywords :
satellite navigation; signal sampling; software radio; superheterodyne receivers; SDR architecture; analog to digital converter technology; digital signal processors; frequency conversion; general purpose processors; high speed FPGA; multiband subsampling receivers; multistandard GNSS receiver; radio receivers; sampling frequency selection procedure; software defined radio; superheterodyne receiver; Band-pass filters; Computer architecture; Frequency conversion; Global Positioning System; RF signals; Radio frequency; Receivers; band-pass sampling; frequency conversion; frequency planning; receiver design; subsampling;
Conference_Titel :
Advanced Technologies for Signal and Image Processing (ATSIP), 2014 1st International Conference on
Conference_Location :
Sousse
DOI :
10.1109/ATSIP.2014.6834664
