Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb
For civil and military applications, the ability to instantaneously capture and process wideband RF (radio-frequency) signal is of great importance. In this paper, a novel photonics-assisted RF channelized receiver aiming for instantaneous broadband RF signal reception is proposed and experimentally...
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| Format: | Article |
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IEEE
2020-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/9066985/ |
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| author | Xuankun Lu Wei Pan Xihua Zou Wenlin Bai Peixuan Li Lianshan Yan Caihong Teng |
| author_facet | Xuankun Lu Wei Pan Xihua Zou Wenlin Bai Peixuan Li Lianshan Yan Caihong Teng |
| author_sort | Xuankun Lu |
| collection | DOAJ |
| description | For civil and military applications, the ability to instantaneously capture and process wideband RF (radio-frequency) signal is of great importance. In this paper, a novel photonics-assisted RF channelized receiver aiming for instantaneous broadband RF signal reception is proposed and experimentally demonstrated. The channelizer is composed of two branches. In one branch, an optical frequency comb (OFC) is generated through a phase modulator (PM), while in the other the optical carrier is frequency-shifted via a polarization modulator (PolM) and then modulated by the captured unknown RF signal. Next, the frequency information of the unknown signal is derived from the frequency sum and the power difference of two specific beating tones, while the incorporation of the comb spacing and the amplitude profile of the OFC enable resolving the ambiguity cases. In the experiments, four receiving channels are constructed using five selected comb lines. The reception and analysis of several RF signals including single-tone, multi-tone and linear frequency modulation (LFM) ones within 1-40 GHz are experimentally validated, which can be extended up to 72 GHz in theory. The proposed channelizer is characterized with ambiguous-free capability, low measurement errors less than 2 MHz, and an SFDR of ∼92 dB·Hz<sup>2/3</sup>. |
| format | Article |
| id | doaj-art-7c8b0b82316047d5a5e2df6ee4a5c2b1 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-7c8b0b82316047d5a5e2df6ee4a5c2b12025-08-20T03:30:57ZengIEEEIEEE Photonics Journal1943-06552020-01-0112311110.1109/JPHOT.2020.29863449066985Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency CombXuankun Lu0https://orcid.org/0000-0002-7128-1116Wei Pan1Xihua Zou2https://orcid.org/0000-0002-7240-4229Wenlin Bai3https://orcid.org/0000-0003-0986-1598Peixuan Li4https://orcid.org/0000-0002-7601-2302Lianshan Yan5https://orcid.org/0000-0002-3633-7161Caihong Teng6https://orcid.org/0000-0002-3601-1102School of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaSchool of Information Science and Technology, Southwest Jiaotong University, Chengdu, ChinaFor civil and military applications, the ability to instantaneously capture and process wideband RF (radio-frequency) signal is of great importance. In this paper, a novel photonics-assisted RF channelized receiver aiming for instantaneous broadband RF signal reception is proposed and experimentally demonstrated. The channelizer is composed of two branches. In one branch, an optical frequency comb (OFC) is generated through a phase modulator (PM), while in the other the optical carrier is frequency-shifted via a polarization modulator (PolM) and then modulated by the captured unknown RF signal. Next, the frequency information of the unknown signal is derived from the frequency sum and the power difference of two specific beating tones, while the incorporation of the comb spacing and the amplitude profile of the OFC enable resolving the ambiguity cases. In the experiments, four receiving channels are constructed using five selected comb lines. The reception and analysis of several RF signals including single-tone, multi-tone and linear frequency modulation (LFM) ones within 1-40 GHz are experimentally validated, which can be extended up to 72 GHz in theory. The proposed channelizer is characterized with ambiguous-free capability, low measurement errors less than 2 MHz, and an SFDR of ∼92 dB·Hz<sup>2/3</sup>.https://ieeexplore.ieee.org/document/9066985/Microwave photonicschannelized receiveroptical frequency combmultiple-frequency measurementmicrowave photonics signal processing |
| spellingShingle | Xuankun Lu Wei Pan Xihua Zou Wenlin Bai Peixuan Li Lianshan Yan Caihong Teng Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb IEEE Photonics Journal Microwave photonics channelized receiver optical frequency comb multiple-frequency measurement microwave photonics signal processing |
| title | Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb |
| title_full | Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb |
| title_fullStr | Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb |
| title_full_unstemmed | Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb |
| title_short | Wideband and Ambiguous-Free RF Channelizer Assisted Jointly by Spacing and Profile of Optical Frequency Comb |
| title_sort | wideband and ambiguous free rf channelizer assisted jointly by spacing and profile of optical frequency comb |
| topic | Microwave photonics channelized receiver optical frequency comb multiple-frequency measurement microwave photonics signal processing |
| url | https://ieeexplore.ieee.org/document/9066985/ |
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