Integrated Multifrequency Recognition and Downconversion Based on Photonics-Assisted Compressive Sampling

Author

Yan, Li ; Dai, Yitang ; Xu, Kun ; Wu, Jian ; Li, Yan ; Ji, Yuefeng ; Lin, Jintong

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

4

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

664

Lastpage

670

Abstract

On the basis of photonics-assisted compressive sampling (CS), we demonstrate for the first time an integrated system with the capacity of multifrequency recognition and downconversion of intercepted radio frequency (RF) component. Using a single analog-to-digital converter (ADC) with sub-Nyquist analog bandwidth of 826.75 MHz, a multicomponent signal with unknown frequencies ranging from 15 to 20 GHz is precisely located with maximum detection error of 100 kHz. The system´s ability of photonic downconversion of identified RF component is characterized in terms of spur-free dynamic range (SFDR) as well.

Keywords

analogue-digital conversion; microwave photonics; signal processing; analog-to-digital converter; bandwidth 826.75 MHz; frequency 15 GHz to 20 GHz; identified RF component; integrated multifrequency downconversion; integrated multifrequency recognition; integrated system; intercepted radio frequency component; maximum detection error; multicomponent signal; photonic downconversion; photonics-assisted compressive sampling; spur-free dynamic range; sub-Nyquist analog bandwidth; Adaptive optics; Bandwidth; Frequency modulation; Harmonic analysis; Photonics; RF signals; Radio frequency; Microwave photonics signal processing; fiber optics systems;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2012.2195482

Filename

6187682