Cochlear Radio

Author

Albuquerque, D.F. ; Soldado, S.T. ; Vieira, J.M.N. ; Carvalho, N.B.

Author_Institution

Dept. of Electron., Univ. of Aveiro, Aveiro, Portugal

fYear

2010

fDate

27-28 Sept. 2010

Firstpage

209

Lastpage

212

Abstract

In this paper we propose an analog to digital converter system for RF signals, the Cochlear Radio, which is bio-inspired in the ear of mammals (cochlea). The basilar membrane is mimicked by microstrip lines and the hair cells by mid-end ADCs. The proposed system relies on hybrid filter bank to perform the conversion of the analog input signal into a digital version of it. A prototype of the analog filter bank operating from 840 MHz to 1470 MHz was used. Simulation results revealed that it is possible to design the synthesis filter bank with low values of distortion and aliasing. Further developments of this technology can achieve the required bandwidth and dynamic range, with off-the-shelf ADCs, fulfilling the promise of Software Defined Radio (a radio capable of dealing with wideband signals).

Keywords

UHF devices; analogue-digital conversion; ear; filters; software radio; RF signals; analog filter bank; analog-to-digital converter system; basilar membrane; cochlear radio; frequency 840 MHz to 1470 MHz; hybrid filter bank; mammal ear; microstrip lines; software defined radio; Acoustic distortion; Bandwidth; Dynamic range; Filter bank; Finite impulse response filter; Power demand; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology Conference (EuWIT), 2010 European

Conference_Location

Paris

ISSN

2153-3644

Print_ISBN

978-1-4244-7233-8

Type

conf

Filename

5615144