Single-photon imaging laser radar system based on wide-spectrum light source

Abstract

The invention provides a single-photon imaging laser radar system based on a wide-spectrum light source. The laser radar system is characterized in that a wide-spectrum light source is used for emitting the wide-spectrum detection light, a light processing module is used for filtering out detection light of a working waveband from the wide-spectrum detection light and carrying out repetition frequency selection and time domain dispersion, an intensity modulation module is used for dividing the detection light into a plurality of detection light with different frequencies, a scanning transceiving module is used for carrying out spatial dispersion of a plurality of detection light and carrying out scanning emergence of a plurality of detection light in combination with mechanical scanning soas to form a two-dimensional detection light dot matrix so that target detection is carried out through the two-dimensional detection light dot matrix, and the detection light reflected back by a target is received, a detection module is used for detecting the photon number of the reflected detection light, and an imaging module is used for carrying out 3D imaging according to the photon number data of the detection light. The laser radar system is advantaged in that the target is detected through the two-dimensional detection light dot matrix, the detection field of view of the radar systemis large, and the imaging speed is high.

Description

technical field [0001] The invention relates to the technical field of laser radar, and more specifically, to a single-photon imaging laser radar system based on a wide-spectrum light source. Background technique [0002] Since lidar has the characteristics of strong anti-interference ability and good concealment, and single-photon imaging technology has the characteristics of high detection sensitivity, the combination of lidar technology and single-photon imaging technology can greatly improve the distance and accuracy of detection and imaging. . [0003] However, due to the small field of view of traditional lidar, long-term precision scanning is required to image the target, resulting in slow imaging speed, and it is difficult to perform high-speed 3D imaging of long-distance targets within a large field of view, which greatly limits the Applications of photonic imaging lidar. Contents of the invention [0004] In view of this, the present invention provides a single...

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Problems solved by technology

[0003] However, due to the small field of view of traditional lidar, long-term precision scanning is required to image the target, resulting in slow imaging speed, and it is difficult to perform high-speed 3D imaging of long-distance targets within a large field of view, which greatly limits the Applications of Photonic Imaging LiDAR

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