Title :
Design of an RF-subsampling based tri-band AIS and DSC radio receiver
Author :
Naoues, Malek ; Barrak, Rim ; Ghazel, Adel
Author_Institution :
CIRTA´´Com Lab., Ecole Super. des Commun. Cite Technol. des Commun. El Ghazala, Ariana, Tunisia
Abstract :
This paper proposes the design of a tri-band AIS1, AIS2 and DSC VHF receiver. Original highly integrated and single path RF front-end is defined by replacing conventional analog mixers with a sample and hold circuit for frequency downconversion. Detailed system level design based on RF-subsampling theory allowed the choice of an optimized sampling frequency of 48.93 MHz for the three radio bands by considering anti-aliasing and noises constraints. The receiver design is based on commercial components with relaxed characteristics. Simulation results with ADS models for selected components shows good performances with an SNR degradation of 7 dB.
Keywords :
VHF devices; radio receivers; sample and hold circuits; signal sampling; software radio; AIS2 receiver; DCS VHF receiver; DSC radio receiver; RF-subsampling; antialiasing; automatic identification system; digital selective calling; frequency 48.93 MHz; frequency downconversion; noise constraint; noise figure 7 dB; radio bands; sample-and-hold circuit; sampling frequency; software defined radio; system level design; triband AIS receiver; Circuit simulation; Constraint optimization; Constraint theory; Design optimization; Noise level; Radio frequency; Receivers; Sampling methods; System-level design; VHF circuits; Automatic Identification System; Digital Selective Calling; RF-Subsampling; Software Defined Radio; component;
Conference_Titel :
Cognitive Radio and Advanced Spectrum Management, 2009. CogART 2009. Second International Workshop on
Conference_Location :
Aalborg
Print_ISBN :
978-1-4244-4582-0
DOI :
10.1109/COGART.2009.5167235
