激光雷达的光脉冲返回卫星所消耗的时间提供了大气中云或者粒子的位置信息。

The length of time the lidar’s light pulse takes to return to the satellite provides information about where the clouds or particles are in the atmosphere.

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这种技术被称作LADAR，它的原理和雷达差不多，都是通过计算脉冲到达一个物体并返回所用的时间来确定物体的大小。

Called LADAR, the technology works in a similar way to radar, calculating the range of an object from the time it takes for a pulse to reach it and then be reflected back.

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所返回的雷达脉冲时间较长就意味着更远的距离，Controller随后将根据不正确的估计位置作出调整。

Because a longer time for the radar pulse to return would imply a greater distance, the Controller would then make adjustments based on an incorrectly estimated position.

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