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发明公开
CN105137450A 低虚警双Gm-APD探测器光子计数激光雷达 无效 - 驳回

低虚警双Gm-APD探测器光子计数激光雷达
摘要：
低虚警双Gm-APD探测器光子计数激光雷达，涉及激光雷达技术领域。它为了解决现有Gm-APD探测器容易被噪声触发，从而产生虚警，影响正常工作的问题。分光镜将回波激光信号分成两路，每一路都有一个Gm-APD单光子探测器进行探测，‘与’判断门实时比较两个Gm-APD单光子探测器的触发时间，如果两个Gm-APD单光子探测器在同一个时间被触发，‘与’判断门输出‘1’，计时模块(1)停止，噪声不具备时间相关性，不能同时触发两个Gm-APD单光子探测器，从而‘与’判断门输出‘0’，计时模块不动作，从而噪声被抑制，不会产生虚警。本发明适用于激光雷达测距和激光成像。
摘要（英）：

The invention discloses a low false-alarm dual-Gm-APD detector photon counting laser radar, and relates to the technical field of laser radars. The invention solves a problem that a conventional Gm-APD detector is liable to be triggered by noises to generate false alarm and affect the normal operation. A light splitter can enable an echo laser signal to be divided into two signals, wherein each signal is detected by one Gm-APD single-photon detector. An AND judgment gate compares the triggering time of the two Gm-APD single-photon detectors in real time. If the two Gm-APD single-photon detectors are triggered at the same moment, the AND judgment gate outputs '1', a timing module stops working, noises do not have temporal correlation, and the two Gm-APD single-photon detectors cannot be triggered at the same time. The AND judgment gate outputs '0', the timing module does not make any operation, thereby inhibiting the noises, and generating no false alarm. The laser radar is suitable for laser radar range finding and laser imaging.

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