Microwave photon radar imaging system and method based on multi-channel time division dechirp reception
A microwave photon and multi-channel technology, applied in radio wave measurement system, electromagnetic wave re-radiation, radio wave reflection/re-radiation, etc. Power and signal-to-noise ratio deterioration and other issues
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[0036] The invention discloses a large and wide microwave photon radar imaging system based on multi-channel time division multiplexing de-skewing receiving technology. Use the electrical signal source to generate coherent chirp electrical signals and chirp continuous wave electrical signals, where the chirp electrical signals are modulated onto the light and then the high-frequency broadband chirp signals are obtained by microwave photon frequency doubling technology as radar detection The signal is radiated into free space for detection; while the chirp continuous wave electrical signal is modulated onto the light as an optical reference signal. The optical reference signal passes through the multi-channel delay unit to form multiple optical reference signals with different delays, thereby forming multiple effective deskewing time windows within one receiving time window. After a delay, the optical reference signals of each channel are sent to the microwave photon deskewing ...
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