Multifrequency radio frequency sensing with photonics-assisted spectrum compression

被引：33

作者：

Yin, Feifei ^{[1
]}

Gao, Yuyang ^{[1
]}

Dai, Yitang ^{[1
]}

Zhang, Junyi ^{[1
]}

Xu, Kun ^{[1
]}

Zhang, Ziping ^{[1
]}

Li, Jianqiang ^{[1
]}

Lin, Jintong ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

来源：

OPTICS LETTERS | 2013年 / 38卷 / 21期

关键词：

NYQUIST;

D O I：

10.1364/OL.38.004386

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate a multifrequency radio frequency (RF) spectrum estimation technology. With photonic assistance, a multifrequency RF signal ranging from 0 to 1 GHz is highly spectrally compressed and sensed using a single analog-to-digital converter with analog bandwidth of 42.6 MHz. By calculating the cross correlation of pseudo random binary sequence and the encoded signal, up to 40 RF tones are precisely recognized without large computational load. The employment of optical mixing decreased the cost and increased the performance compared to its electrical counterpart. The theory and performance are also discussed. (C) 2013 Optical Society of America

引用

页码：4386 / 4388

页数：3

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