High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection
A microwave photonic approach is proposed to achieve a high resolution enhanced by a factor of 2 for the range and velocity measurement. In the transmitter, a V-shaped linear-frequency-modulated (LFM) microwave signal is generated through the frequency doubling enabled by photonics, with large time-...
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8580385/ |
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| author | Haixia Cheng Xihua Zou Bing Lu Yao Jiang |
| author_facet | Haixia Cheng Xihua Zou Bing Lu Yao Jiang |
| author_sort | Haixia Cheng |
| collection | DOAJ |
| description | A microwave photonic approach is proposed to achieve a high resolution enhanced by a factor of 2 for the range and velocity measurement. In the transmitter, a V-shaped linear-frequency-modulated (LFM) microwave signal is generated through the frequency doubling enabled by photonics, with large time-bandwidth product for improving the range resolution, whereas in the receiver, the round-trip duration and Doppler frequency shift (DFS) between the transmitted LFM signal and the received echo signal are mapped into two doubled frequency spacings between two pairs of target sidebands by incorporating two cascaded electrooptic modulators. Thus, the distance and velocity of the moving target can be measured from the beat note of the target sidebands, showing a high resolution improved by a factor of 2. Experiments have been implemented and demonstrated in <italic>X</italic>-band with a bandwidth of 2 GHz. The distance measurement indicates an absolute error less than 3 mm. In addition, the performance of the proposed system in terms of low power level is discussed. |
| format | Article |
| id | doaj-art-c495d17492e342efadd685bfd8c0acdf |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-c495d17492e342efadd685bfd8c0acdf2025-08-20T03:32:37ZengIEEEIEEE Photonics Journal1943-06552019-01-011111810.1109/JPHOT.2018.28885658580385High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and DetectionHaixia Cheng0https://orcid.org/0000-0003-0068-1697Xihua Zou1https://orcid.org/0000-0002-7240-4229Bing Lu2https://orcid.org/0000-0003-3829-2662Yao Jiang3School 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, ChinaA microwave photonic approach is proposed to achieve a high resolution enhanced by a factor of 2 for the range and velocity measurement. In the transmitter, a V-shaped linear-frequency-modulated (LFM) microwave signal is generated through the frequency doubling enabled by photonics, with large time-bandwidth product for improving the range resolution, whereas in the receiver, the round-trip duration and Doppler frequency shift (DFS) between the transmitted LFM signal and the received echo signal are mapped into two doubled frequency spacings between two pairs of target sidebands by incorporating two cascaded electrooptic modulators. Thus, the distance and velocity of the moving target can be measured from the beat note of the target sidebands, showing a high resolution improved by a factor of 2. Experiments have been implemented and demonstrated in <italic>X</italic>-band with a bandwidth of 2 GHz. The distance measurement indicates an absolute error less than 3 mm. In addition, the performance of the proposed system in terms of low power level is discussed.https://ieeexplore.ieee.org/document/8580385/Microwave photonicrange and velocity measurementhigh resolutionfrequency doublingLFM. |
| spellingShingle | Haixia Cheng Xihua Zou Bing Lu Yao Jiang High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection IEEE Photonics Journal Microwave photonic range and velocity measurement high resolution frequency doubling LFM. |
| title | High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection |
| title_full | High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection |
| title_fullStr | High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection |
| title_full_unstemmed | High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection |
| title_short | High-Resolution Range and Velocity Measurement Based on Photonic LFM Microwave Signal Generation and Detection |
| title_sort | high resolution range and velocity measurement based on photonic lfm microwave signal generation and detection |
| topic | Microwave photonic range and velocity measurement high resolution frequency doubling LFM. |
| url | https://ieeexplore.ieee.org/document/8580385/ |
| work_keys_str_mv | AT haixiacheng highresolutionrangeandvelocitymeasurementbasedonphotoniclfmmicrowavesignalgenerationanddetection AT xihuazou highresolutionrangeandvelocitymeasurementbasedonphotoniclfmmicrowavesignalgenerationanddetection AT binglu highresolutionrangeandvelocitymeasurementbasedonphotoniclfmmicrowavesignalgenerationanddetection AT yaojiang highresolutionrangeandvelocitymeasurementbasedonphotoniclfmmicrowavesignalgenerationanddetection |