The Institute of Electronics, Chinese Academy of Sciences successfully developed the first radar prototype based on microwave photon technology in China and conducted the inverse synthetic aperture imaging test on the non-cooperative field in the field, obtaining the first imaging pattern of microwave photon radar in China and promoting new The development of radar technology in the new system of technology. The first microwave photon radar uses a dual-station radar system and a photonic architecture, and introduces microwave photon generation and de-frequency receiving technologies for radar signals at the RF front-end of the transmitter and receiver, respectively. The microwave photonic radar can support broadband work and has the potential of increasing the range-to-resolution. The image resolution obtained in the field is one order of magnitude higher than that of the international similar microwave photon radars reported in the field and the image sharpness is obviously improved.
Microwave photon radar research is a multidisciplinary field that combines microwave photon technology and radar technology, and is one of the key cultivation directions for the research on radar for the new technology and new system by electronics. Microwave photon radar research, relying on the electronic room, has been the Chinese Academy of Sciences focus on the deployment of science and technology projects, the Chinese Academy of Sciences took the lead in action plans, microwave photon imaging radar technology validation test platform to purchase items of support; the same time, the introduction of microwave photonics background Of overseas young researchers of thousands of thousands of Li and Li Ruoming into the work carried out, combined with the electronic radar technology expertise and research experience, through the collision between different disciplines, exchanges and cooperation between different professional and technical personnel, a strong impetus to the research of microwave photon radars development of. Starting from the second half of 2015, relevant professional teams collaborated to innovate and completed the key technologies of microwave photon imaging radar system design and development, photon generation of wideband radar signals and photon-to-frequency modulation reception, as well as research and development of related imaging algorithms. After the laboratory principle verification, the darkroom point-target imaging experiment and the system integration joint tuning, the imaging test of the non-cooperative target in the field was finally realized, and the feasibility of the microwave photon radar was verified. The research has been received by the international journal Optics Express and is coming soon.
In this field test, imaging tests were carried out on different models including Boeing 737 at different distances and different perspectives. Thanks to the microwave photonic radar architecture and the unique benefits of photonic technology in broadband signal generation, processing and system spurious suppression, microwave photon radar imaging images clearly identify the structural details of the target such as the aircraft engine, the empennage and the flaps Rail and other structures to demonstrate the ability of microwave photon radar to identify the characteristics of the target structure, compared with published in the "Nature" magazine of foreign microwave photon radar system for field imaging results shown in Figure 2, the electronic microwave photon radars System imaging results have been significantly improved. The research work in this direction will further enhance the imaging performance of microwave photon radars and continue to explore the application value of microwave photonic technologies in different system radars.
The successful development of the first domestic microwave photon radars prototype has filled the gap in this field in China and promoted the fusion of photon technology with the traditional microwave systems, especially the radar system, marking a new stage of development of future radar technologies and systems , Laying the foundation for the birth of the new system of future radar.
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