Method and device for radar target feature recognition based on optical time-delay fast interferometric scanning

A device for radar target feature recognition based on optical time-delay fast interferometric scanning, comprising:

• an antenna unit;
• an electro-optical converter;
• an optical time-delay numerical control scanning device;
• an optical combiner;
• a photoelectric detector;
• and
• a power characteristic analysis device;
• wherein the antenna unit is configured to receive radar target electrical signals, and the electro-optic converter is configured to convert electrical signal is converted into an optical signal;
• the optical delay numerical control scanning device is configured to control the delay of the optical signal;
• the optical combiner is configured for optical signal synthesis;
• the photodetector is configured to convert the optical signal into a radio frequency signal;
• and the power characteristic analysis device is configured to calculate the average power of the signal and analysis of radar target features of the radio frequency signal;
• the optical delay numerical control scanning device comprises a two-path N-stage high-speed optical delay line T1, T2, and an optical delay line controller;
• the power characteristic analysis device comprises a linear power detector, an analog-to-digital converter, a processor and a memory.