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帮我回我送积分! The Optical Transient Detector (OTD) is a highly compact combination of optical and electronic elements. It was developed as an in-house project at NASA's Marshall Space Flight Center in Huntsville, Alabama. The name, Optical Transient Detector, refers to its capability to detect the momentary changes in an optical scene which indicate the occurrence of lightning.
The OTD instrument is a major advance over previous technology in that it can gather lightning data under daytime conditions as well as at night. In addition, it provides much higher detection efficiency and spatial resolution than has been attained by earlier lightning sensors.
(LMS) program is intended to place a sensor, capable of continuously mapping lightning discharges during both day and night, into a geostationary orbit. From this orbit, the sensor would be capable of detecting all forms of lightning with a high spatial resolution and detection efficiency.
This sensor could continuously monitor lightning activity over the United States and provide a more complete dataset than is currently possible.
   

参考案 光学瞬变探测器(OTD)是光学和电子元素的一个高度紧密组合。它被用在阿拉巴马州亨茨维尔的美国航空航天局(NASA)的马歇尔航天中心的一项内部计划中。光学瞬变探测器能够探测出雷击发生时的短暂瞬间的光学变化。它是对以前技术的重大发展，它可无论在白天还是夜晚都能收集闪电的数据，而且比早先的闪电传感器有更高的探测效率和空间分辨率。(LMS) 计划，是打算把一个能够日夜不断测绘闪电放电的传感器，放入地球固定轨道。从这一轨道上，该传感器能以高空间分辨率和探测效率，探测各种形式的闪电。这种传感器可在美国上空不间断地监测雷电活动，并提供比目前所有的更加完整的数据集。