Non-scanning single photon imaging detecting laser radar

Abstract

The invention discloses a non-scanning single photon imaging detecting laser radar comprising a wide-spectrum pulse module, a two-dimensional dispersion light transceiver module, and a signal detection module. The wide-spectrum pulse module is used for outputting wide-spectrum pulse light. The two-dimensional dispersion light transceiver module is used for carrying out two-dimensional dispersion on the wide-spectrum pulse light at a preset light path, generating a two-dimensional dot-matrix detection light, outputting the light, detecting a detection target, receiving the two-dimensional dot-matrix detection light, and outputting feedback detection light after reversed passing of the preset light path. The signal detection module is used for carrying out dispersion on the feedback detection light, carrying out single photon counting imaging, and carrying out analysis processing to obtain information of the detection target. According to the invention, the two-dimensional dispersion light transceiver module is used for carrying out two-dimensional dispersion on the wide-spectrum pulse light to form the two-dimensional dot-matrix detection light and the wavelength component in the light is applied fully; the scanning situation is avoided; and the detection target is detected by using the single photon and single photon counting imaging is used for processing, so that the remote detection is realized.

Description

technical field [0001] The invention relates to the field of imaging and detection laser radar, and more specifically, relates to a non-scanning single-photon imaging and detection laser radar. Background technique [0002] Imaging and detection lidar has great application significance and development potential in scientific research, military, and civilian applications, especially in terrain detection, auto-driving, microscopic imaging of biological targets, high-speed process imaging, and national security. [0003] At present, lidar imaging detection technology is receiving more and more attention, and has gradually become a hot research field of lidar. The world's top universities, scientific research institutions, high-tech enterprises and other units are actively carrying out research and development of imaging lidar systems. Foreign units engaged in imaging lidar include NASA, Defense Advanced Research Projects Agency (DARPA), Massachusetts Institute of Technology (M...

AI Technical Summary

Problems solved by technology

For spatial imaging, the returned probe light carries information of different positions and distances, which will destroy the time-frequency relationship of the original pulse in the dispersion fiber, so that the frequency of the returned signal cannot be distinguished from the obtained time-domain signal, so this technology has not yet been used in long-distance Applied in macro target detection and imaging

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