Optical network solution to the synchronization of distributed coherent aperture radar
Autor: | Jinwang Qian, Chunqi Song, Mingzheng Lei, Xinlu Gao, Mutong Xie, Zhennan Zheng, Shanguo Huang |
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Rok vydání: | 2019 |
Předmět: |
Computer science
business.industry Aperture ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ComputerApplications_COMPUTERSINOTHERSYSTEMS 02 engineering and technology 021001 nanoscience & nanotechnology Phase synchronization 01 natural sciences Atomic and Molecular Physics and Optics Pulse (physics) law.invention 010309 optics Optics Transmission (telecommunications) law 0103 physical sciences Synchronization (computer science) Electronic engineering Sensitivity (control systems) Radar 0210 nano-technology business Physics::Atmospheric and Oceanic Physics Microwave photonics |
Zdroj: | Optics letters. 44(8) |
ISSN: | 1539-4794 |
Popis: | Distributed coherent aperture radar (DCAR) is an important direction for next-generation radar due to its high sensitivity. The challenge to realize DCAR is the synchronization among geographically distributed radar units. We propose an optical network for DCAR synchronization. The proposed network achieves functions of phase-coded pulse generation, time synchronization, and phase synchronization with the help of microwave photonics techniques. Proof-of-concept experiments are conducted in fiber and space transmission scenarios. The combined radar beams have negligible energy loss when synchronization is achieved. |
Databáze: | OpenAIRE |
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