Microwave photon MIMO radar detection method and microwave photon MIMO radar system
A microwave photon and radar system technology, applied in the field of microwave photon radar detection, can solve the problems of large coherent processing interval, long measurement time, radar target detection ability decline, etc., to achieve real-time signal processing, high radar azimuth resolution, high radar Effect of distance resolution
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[0041] Aiming at the deficiencies of the existing technologies, the idea of the present invention is to use microwave photon technology combined with a multi-input multi-output radar structure to improve the radar range resolution and azimuth resolution to overcome the problem of limited target detection capabilities of traditional radars.
[0042]Specifically, at the transmitting end, M channels of IF chirp signals with the same bandwidth and chirp rate and non-overlapping frequencies are modulated on M channels of optical carriers with different wavelengths in one-to-one correspondence, and the generated M channels only retain the positive and negative second-order The modulated optical signal of the sideband; the M modulated optical signals are combined by an optical wavelength division multiplexer and divided into two channels; one of them is divided into N beams of reference light; the other optical signal is photoelectrically converted to obtain M Electrical signals of ...
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