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首页> 外文期刊>Applied optics >LASER RANGING AND MAPPING WITH A PHOTON-COUNTING DETECTOR
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LASER RANGING AND MAPPING WITH A PHOTON-COUNTING DETECTOR

机译：用光子计数探测器进行激光测距和制图

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摘要

We propose a new technique for remote sensing: photon-counting laser mapping. Microchannel plate detectors with a crossed delay-line (MCP/CDL) readout combine high position accuracy and subnanosecond photon timing, at event rates of 10(6) detected photons per second and more. A mapping system would combine an MCP/CDL detector with a fast-pulse, high-repetition-rate laser illuminator. The system would map solid targets with exceptional in-range and cross-range resolution. The resulting images would be intrinsically three dimensional, without resorting to multiple viewing angles, so that objects of identical albedo could be discriminated. For a detector time resolution and pulse width of the order of 10(-10)s, the in-range resolution would be a few centimeters, permitting the discrimination of surfaces by their textures. Images could be taken at night, at illumination levels up to full moonlight, from ground, airborne, or space platforms. We discuss signal to noise as a function of laser flux and background level and present simulated images. [References: 34]
机译：我们提出了一种新的遥感技术：光子计数激光测绘。具有交叉延迟线（MCP / CDL）读数的微通道板探测器将高位置精度和亚纳秒光子定时相结合，事件发生率达到每秒10（6）个或更多。测绘系统将把MCP / CDL检测器与快速脉冲，高重复频率的激光照明器结合在一起。该系统将以出色的范围内和跨范围分辨率绘制实心目标。生成的图像本质上将是三维的，而无需诉诸多个视角，因此可以区分相同反照率的物体。对于检测器时间分辨率和10（-10）s量级的脉冲宽度，范围内的分辨率将为几厘米，从而可以通过其纹理来区分表面。可以从地面，机载或太空平台在夜间以高达月光的照明水平拍摄图像。我们讨论了信噪比与激光通量和背景水平的关系，并介绍了模拟图像。 [参考：34]

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