Detection method and system of polarization multiplexing microwave photon radar based on photon sampling
A polarization multiplexing, microwave photonic technology, applied in the field of radar detection, can solve the problems of small optical pulse repetition frequency, reduce system stability, limit the bandwidth of the received signal, etc., achieve flexible extraction, ensure coherence, and achieve frequency modulation processing Effect
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[0050] Aiming at the deficiencies of the prior art, the idea of the present invention is to generate a high-frequency, tunable chirp radar transmission signal based on the photon sampling up-conversion technology, and to realize broadband echo signal reception through the photon band-pass sampling down-conversion and de-slope method. Polarization multiplexing technology realizes the above functions on a single integrated module at the same time, the system structure is simple and compact, the radar working parameters are flexible and adjustable, and the signal processing is real-time and efficient.
[0051] A polarization multiplexing microwave photon radar detection system based on photon sampling of the present invention, such as figure 1 As shown, it includes an optical frequency comb generation module, a baseband modulation signal generation module, a polarization multiplexing electro-optic modulator, a first polarizer, a second polarizer, and the like.
[0052] The fre...
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