Photonic Generation of Switchable Multiformat Chirp Signals With Immunity to Power Fading

被引：2

作者：

Men, Yuan ^{[1
]}

Lin, Lin ^{[1
]}

Wen, Aijun ^{[1
]}

Xu, Xiao ^{[1
]}

机构：

[1] Xidian Univ, Collaborat Innovat Ctr Informat Sensing & Understa, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2023年 / 71卷 / 04期

关键词：

Immunity to power fading; microwave photonics; split parabolic waveform signal; switchable multiformat chirp signal; time bandwidth product (TBWP); FREQUENCY; RADAR;

D O I：

10.1109/TMTT.2022.3222427

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：

In this article, a photonic approach for the generation of switchable multiformat chirp signals with immunity to power fading by simply adjusting the bias voltages of a dual-polarization binary phase-shift keying (DP-BPSK) modulator is proposed. A parabolic waveform signal with $N$ times split is employed to increase the time bandwidth product (TBWP) of the generated chirp signal by $N$ times. A proof-of-concept experiment is established to verify the feasibility of the proposed scheme. Major characteristics of the signal are verified, such as format switching capability, frequency tunability, immunity to power fading, and pulse compression performance. The relationship between unwanted frequency components and the amplitude of the split parabolic waveform signal is analyzed by simulation. The maximum bandwidth of the generated chirp signal is also given.

引用

页码：1772 / 1780

页数：9

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