Photonics-Based Real-Time 2D (Time-Frequency) Broadband Signal Analysis and Processing

被引：0

作者：

Azana, Jose ^{[1
]}

Konatham, Saikrishna R. ^{[2
]}

Maram, Reza ^{[3
,4
]}

de Chatellus, Hugues Guillet ^{[5
]}

机构：

[1] Inst Natl Rech Sci INRS EMT, Dept Energy Mat & Telecommun, Montreal, PQ, Canada

[2] INRS EMT, Montreal, PQ, Canada

[3] McGill Univ, INRS EMT, Montreal, PQ, Canada

[4] McGill Univ, ECE Dept, Montreal, PQ, Canada

[5] Univ Grenoble Alpes, LIPHY, CNRS, Grenoble, France

来源：

2019 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS (MWP2019) | 2019年

基金：

加拿大自然科学与工程研究理事会;

关键词：

real-time signal analysis; analog waveform processing; joint time-frequency distributions; short-time Fourier transform; spectrogram; optical dispersion; SPECTRUM ANALYSIS; ANALYZER;

D O I：

10.1109/mwp.2019.8892100

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This contribution reviews recent work on a new universal analog-processing design for gap-free real-time spectral analysis of broadband microwave signals, through a continuous mapping of the input signal's short-time Fourier transform or spectrogram (SP) along the time domain. This design involves short-pulse sampling and chromatic dispersion. A photonic processor has been demonstrated for real-time SP analysis of GHz-bandwidth arbitrary microwave signals at a speed approaching 5x10(9) FTs/second, beyond the potential of present methods. The concept offers novel interesting opportunities for real-time, on-the-fly broadband signal processing by exploiting the powerful joint time-frequency representation framework.

引用

页码：332 / 335

页数：4

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