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
收藏
页码：332 / 335
页数：4
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