A flexible realtime system for broadband time-frequency analysis in 130 NM CMOS

Author

Noury, Ludovic ; Mehrez, Habib

Author_Institution

ESIEE Paris, Univ. Paris-Est, Paris, France

fYear

2010

fDate

12-15 Dec. 2010

Firstpage

251

Lastpage

254

Abstract

Nonstationary signals are used extensively in modern telecommunications applications. Due to their growing ubiquity, the radio spectrum gets saturated; hence the need for an equipment capable of analyzing a large band of the frequency spectrum. But, analyzing this spectrum in realtime is a complex task because we need a joint analysis in time and frequency, based on an adequate time-frequency representation (TFR). In this paper we present an architecture which computes efficiently and simultaneously the short time Fourier transform TFR of a given signal with different time-frequency resolutions. We also present the results obtained from a first prototype manufactured in 130nm CMOS.

Keywords

CMOS integrated circuits; Fourier transforms; VLSI; application specific integrated circuits; real-time systems; time-frequency analysis; broadband time-frequency analysis; flexible realtime system; frequency spectrum; nonstationary signal; radio spectrum; short time Fourier transform; size 130 nm; time-frequency representation; Indexes; Time frequency analysis; VLSI systems and applications; algorithm-architecture matching; digital signal processing; short-time Fourier transform; time-frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits, and Systems (ICECS), 2010 17th IEEE International Conference on

Conference_Location

Athens

Print_ISBN

978-1-4244-8155-2

Type

conf

DOI

10.1109/ICECS.2010.5724501

Filename

5724501