A Simple Photonic System for DFS and AOA Simultaneous Measurement
A simple photonics-based dual-channel system is proposed to simultaneously measure the Doppler frequency shift (DFS) and angle of arrival (AOA) of microwave signals. The system applies two parallel push–pull Mach–Zehnder modulators (MZMs) for carrier suppression dual-sideband (CS-DSB) modulation. Th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/12/980 |
| _version_ | 1797455648599834624 |
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| author | Xintong Li Jinming Tao Jinye Li Qianqian Jia Chaoquan Wang Jianguo Liu |
| author_facet | Xintong Li Jinming Tao Jinye Li Qianqian Jia Chaoquan Wang Jianguo Liu |
| author_sort | Xintong Li |
| collection | DOAJ |
| description | A simple photonics-based dual-channel system is proposed to simultaneously measure the Doppler frequency shift (DFS) and angle of arrival (AOA) of microwave signals. The system applies two parallel push–pull Mach–Zehnder modulators (MZMs) for carrier suppression dual-sideband (CS-DSB) modulation. The introduction of the reference signal results in a DFS measurement without direction ambiguity. The DFS can be determined by measuring the frequency of the down-converted intermediate frequency (IF) signal, and the AOA can be calculated by comparing the phase shift of the two channels. A proof-of-concept experiment shows that the DFS measurement error is less than 0.4 Hz during ±100 kHz, and the AOA measurement error is within 1.5° in a range of 0–70°. |
| first_indexed | 2024-03-09T15:57:19Z |
| format | Article |
| id | doaj.art-53e1bb8e72f24a6ca0b074214741270b |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T15:57:19Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-53e1bb8e72f24a6ca0b074214741270b2023-11-24T17:25:49ZengMDPI AGPhotonics2304-67322022-12-0191298010.3390/photonics9120980A Simple Photonic System for DFS and AOA Simultaneous MeasurementXintong Li0Jinming Tao1Jinye Li2Qianqian Jia3Chaoquan Wang4Jianguo Liu5The State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaThe State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaThe State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaThe State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaThe State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaThe State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaA simple photonics-based dual-channel system is proposed to simultaneously measure the Doppler frequency shift (DFS) and angle of arrival (AOA) of microwave signals. The system applies two parallel push–pull Mach–Zehnder modulators (MZMs) for carrier suppression dual-sideband (CS-DSB) modulation. The introduction of the reference signal results in a DFS measurement without direction ambiguity. The DFS can be determined by measuring the frequency of the down-converted intermediate frequency (IF) signal, and the AOA can be calculated by comparing the phase shift of the two channels. A proof-of-concept experiment shows that the DFS measurement error is less than 0.4 Hz during ±100 kHz, and the AOA measurement error is within 1.5° in a range of 0–70°.https://www.mdpi.com/2304-6732/9/12/980Doppler frequency shiftangle of arrivalmicrowave photonics |
| spellingShingle | Xintong Li Jinming Tao Jinye Li Qianqian Jia Chaoquan Wang Jianguo Liu A Simple Photonic System for DFS and AOA Simultaneous Measurement Photonics Doppler frequency shift angle of arrival microwave photonics |
| title | A Simple Photonic System for DFS and AOA Simultaneous Measurement |
| title_full | A Simple Photonic System for DFS and AOA Simultaneous Measurement |
| title_fullStr | A Simple Photonic System for DFS and AOA Simultaneous Measurement |
| title_full_unstemmed | A Simple Photonic System for DFS and AOA Simultaneous Measurement |
| title_short | A Simple Photonic System for DFS and AOA Simultaneous Measurement |
| title_sort | simple photonic system for dfs and aoa simultaneous measurement |
| topic | Doppler frequency shift angle of arrival microwave photonics |
| url | https://www.mdpi.com/2304-6732/9/12/980 |
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