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首页> 外文会议>Lidar Remote Sensing for Environmental Monitoring VIII; Proceedings of SPIE-The International Society for Optical Engineering; vol.6681 >Novel Applications of an Affordable Short-Range Digital LIDAR
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Novel Applications of an Affordable Short-Range Digital LIDAR

机译：经济实惠的短距离数字激光雷达的新应用

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摘要

The design and application results of an affordable short range (less than 100 m) digital LIDAR (Light Detection And Ranging) system will be presented. This work was initiated because many short-range standoff detection applications would benefit from such a system. The lidar features a fiber-based component integrated in the optical module, which allows for hardware partial compensation of the backscattered signal losses observed at short distances due to a biaxial configuration of the lidar optics. This is an important advantage for particle density computations. The digitized backscattered laser signals are available for signal processing. A dedicated FPGA (Field Programmable Gate Array) allows for real-time averaging of the signal waveforms captured at the maximum 50-kHz pulse repetition frequency of the laser. Several application-specific tests have been performed. The first of these was real-time onboard monitoring of pesticide drift in agricultural spraying applications. The signal levels were sufficient for control of the spraying operations and prevention of pesticide drift into sensitive areas. The second was a dust monitoring application. The lidar was installed in a quarry and signals from dust clouds were recorded. Real-time monitoring capabilities were shown to be promising. Other applications involving detection of solid targets in degraded visibility conditions caused by fog or snowfalls were also tested and are discussed.
机译：将介绍价格合理的短距离（小于100 m）数字LIDAR（光检测和测距）系统的设计和应用结果。开展这项工作的原因是，许多短距离防区外探测应用程序将从这种系统中受益。激光雷达具有集成在光学模块中的基于光纤的组件，该组件可以对由于激光雷达光学器件的双轴配置而在短距离观察到的反向散射信号损失进行硬件部分补偿。这是粒子密度计算的重要优势。数字化的反向散射激光信号可用于信号处理。专用的FPGA（现场可编程门阵列）允许对激光器最大50 kHz脉冲重复频率下捕获的信号波形进行实时平均。已经执行了几个特定于应用程序的测试。其中第一个是对农业喷洒应用中农药漂移的实时车载监测。信号电平足以控制喷涂操作并防止农药进入敏感区域。第二个是粉尘监测应用程序。激光雷达安装在采石场中，并记录了尘云产生的信号。实时监控功能被证明是有前途的。还测试并讨论了涉及在由雾或降雪引起的能见度下降的情况下检测固体目标的其他应用。

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