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首页> 外文期刊>Applied optics >Range-resolved optical detection of honeybees by use of wing-beat modulation of scattered light for locating land mines
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Range-resolved optical detection of honeybees by use of wing-beat modulation of scattered light for locating land mines

机译：通过散射光的翼拍调制对蜜蜂进行距离分辨光学检测以定位地雷

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摘要

An imaging lidar instrument with the capability of measuring the frequency response of a backscattered return signal up to 3.6 kHz is demonstrated. The instrument uses a commercial microchip frequency-doubled pulsed Nd:YAG laser with a 7.2 kHz pulse repetition rate, a pulse duration of less than 1 ns, and a pulse energy of greater than 10 (mu)J. A 15.2 cm commercial telescope is used to collect the backscattered signal, and a photomultiplier tube is used to monitor the scattered light. This instrument is designed for range- and angle-resolved optical detection of honeybees for explosives and land-mine detection. The instrument is capable of distinguishing between the scattered light from honeybees and other sources through the frequency content of the return signal caused by the wing-beat modulation of the backscattered light. Detection of honeybees near a bee hive and spatial mapping of honeybee densities near feeders are demonstrated.
机译：演示了一种成像激光雷达仪器，该仪器能够测量高达3.6 kHz的反向散射返回信号的频率响应。该仪器使用商用微芯片倍频脉冲Nd：YAG激光器，脉冲重复频率为7.2 kHz，脉冲持续时间小于1 ns，脉冲能量大于10μJ。使用15.2厘米的商用望远镜收集反向散射信号，并使用光电倍增管监控散射光。该仪器设计用于蜜蜂的距离和角度分辨光学检测，以用于爆炸物和地雷检测。该仪器能够通过后向散射光的翼拍调制所引起的返回信号的频率成分，来区分蜜蜂和其他来源的散射光。蜜蜂的蜂巢附近的蜜蜂检测和饲养者附近的蜜蜂密度的空间制图得到证明。

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