Microwave photon imaging and identification integrated radar system based on semiconductor laser

A microwave photon and radar system technology, applied in radio wave measurement systems, instruments, radio wave reflection/re-radiation and other directions, can solve problems such as high cost and a lot of time, achieve high accuracy, fast processing speed, and imaging resolution. high rate effect

Pending Publication Date: 2022-05-10
SUZHOU UNIV
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However, training such a neural network takes a lot of time, making it too expensive

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  • Microwave photon imaging and identification integrated radar system based on semiconductor laser
  • Microwave photon imaging and identification integrated radar system based on semiconductor laser

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0061] Such as figure 1 As shown, it is a semiconductor laser-based microwave photon imaging and recognition integrated radar system in a preferred embodiment of the present invention, including an injection optical module 1, a slave laser 3, a first photodetector 4, a power divider 5, and a transmitting and receiving module 7. Microwave photon mixing module 8 and target recognition input module 9.

[0062] The injection optical module 1 is used to generate an optical signal whose optical intensity can be continuously tuned; the slave laser 3 is used to receive the optical signal whose optical intensity can be continuously tuned and excite a single-period nonlinear dynamic state, ...

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Abstract

The invention discloses a microwave photon imaging and identification integrated radar system based on a semiconductor laser, and the system comprises an injection light module, a slave laser, a first photoelectric detector, a power divider, a transmitting and receiving module, a microwave photon frequency mixing module, a target identification input module, a storage pool calculation system, and a target identification output module. A reserve computing system includes a driver module and a response module. Based on the semiconductor laser, the training cost of the system is reduced by utilizing the incomparable advantages of the high-speed propagation characteristic of laser in the calculation rate; based on the photon technology, not only is high-resolution radar imaging realized, but also integration of radar imaging and recognition is realized, the training time and cost are greatly reduced, and meanwhile, the method has the advantages of simple construction, high processing speed and high accuracy. Wherein the slave laser works in a single-period oscillation state, so that the generated radar emission signal has the advantages of large sweep bandwidth, high imaging resolution and flexible tuning.

Description

technical field [0001] The invention relates to the technical field of microwave photon radar, in particular to a semiconductor laser-based integrated radar system for microwave photon imaging and recognition. Background technique [0002] Microwave photon radar utilizes photon technology's inherent characteristics of large bandwidth, low transmission loss, and low phase noise to break through electronic bottlenecks and meet radar's high-precision, high-resolution real-time imaging requirements in future wars. "Key enabling technologies. At the same time, the photonic system is light in weight, small in size, and compatible with integrated circuits, which can reduce the volume and weight of the radar system by dozens of times, thereby greatly reducing the load on aircraft, satellites, ships, etc. Therefore, microwave photonics technology, as the key to next-generation radar systems, has attracted extensive research. The current microwave photon radar scheme mainly focuses ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/89
CPCG01S13/89
Inventor 周沛张仁恒李念强朱尖黄于杨一功
Owner SUZHOU UNIV
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