Laser strobe active night vision method for remote night monitoring

一种用于远距离夜间监控的激光频闪主动夜视方法

Abstract

本发明公开了一种用于远距离夜间监控的激光频闪主动夜视方法,该方法采用一帧多脉多门的工作方式,在成像器件一帧的曝光时间里,脉冲激光器发射激光脉冲序列,选通门按照预定的选通脉冲序列工作,成像器件接收来自目标的多个目标回波信号,达到光积累进而增强信号的目的。本发明工作环境适应性好,可在能见度低的情况下正常工作,由于利用小功率脉冲激光器便可实现夜间远距离的目标的观察,大大降低了系统的成本,并提高了系统的激光安全性,尤其是人眼安全性。
The invention discloses a laser strobe active night vision method for remote night monitoring. In the method, a one-frame multi-pulse and multi-door working mode is adopted, in one frame time of exposure of an imaging device, a pulse laser emits a laser pulse sequence, a strobing gate works according to a preset strobing pulse sequence, and the imaging device receives a plurality of target echo signals from a target, therefore, the purpose of light accumulation and signal enhancement is achieved. The invention has good working environmental suitability, and can normally work under the condition of low visibility. Since a long-distance target can be observed at night by using the low-power pulse laser, the cost of the system is greatly reduced, the laser security of the system is improved, and especially the security of eyes is improved.

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