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US subs would be sitting ducks for new Chinese 'Death Star' laser satellite that will be able spot them 1,600ft below the surface

美国潜艇舰队将成为中国新激光卫星“死星”的活靶子,其能够在定位水下1,600英尺目标

Lasers may be so powerful they will make the sea 'more or less transparent'

这款激光武器如此爆强将让海洋近乎透明化

The artificial laser beam could be one billion times brighter than the sun

人造激光束比太阳亮十亿倍.

Some experts say this type of deep-sea surveillance is 'mission impossible'

一些专家认为,这种深海监测是“不可能任务”。

China's new spy satellite 'Project Guanlan' could use lasers to spot submarines up to 1,600ft (500m) below the ocean's surface.

中国新的反潜卫星“观澜”项目可以使用激光探测潜艇表面下的1600英尺(500米)以下的潜艇。

These lasers will be so powerful they will make the upper layer of the sea 'more or less transparent', according to scientists involved in the project.

据参与该项目的科学家说,这些激光将非常强大,将使得海洋上层水体“几乎透明”。

Researchers claim these artificial laser beams could be one billion times brighter than the sun.

研究人员声称这些人造激光束的亮度是太阳的十亿倍。

However, some experts say this type of deep-sea surveillance is 'mission impossible' as lasers are fundamentally unable to penetrate that deep.

然而,一些专家表示,这种类型的深海监视是“不可能任务”,因为激光根本无法穿透那么深。

图片是美国第一潜艇(百度百科说的 俄亥俄级战略核潜艇 79年研发出来的,测试深度是240m 说第一名是各种方面的综合考量吧。
目前潜艇潜水深度普遍200-600米之间 70年代苏联的最大记录已经达到了1000米。现今百度出来的数据是最深1250m 中国平均近海水深渤海18m/黄海44m/东海370m/南海1212m)

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According to researchers, this high-powered laser beam is so powerful it would be able to scan an area as wide as 62 miles (100km) on land.

据研究人员称,这种高功率激光束非常强大,可以扫描方圆62英里(100公里)的区域。

It will also be used alongside microwave radar which will scan the surface of the water and identify surface movement.

它还将与微波雷达一起使用,微波雷达可扫描水面并识别表层动态。

This could be an indication that a submarine is lurking below.

这可能意味着潜艇潜伏在下方。

Lidar uses ultraviolet, visible, or near infrared light to image objects.

激光雷达使用紫外线,可见光或近红外光来映像出物体。

It can be used with a wide range of targets, including non-metallic objects, rocks, rain, chemical compounds, aerosols, clouds and even single molecules.

它适用于各种目标,包括非金属物体,岩石,雨水,化合物,浮粒,云层,甚至单分子。



However, it is negatively affected by fog, murky water and marine life.

然而,遭遇雾,浊水和海洋生物激光会被削弱。

It also works less well in water as light scatters when it hits the surface.

在水中的效果也不太好,因为当光线射向水平面时光会散射掉。

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'They [project researchers] won't be able to break through the darkness guarded by Mother Nature – unless of course they are Tom Cruise, armed with some secret weapons,' one anonymous researcher from the Shanghai Institute of Optics and Fine Mechanics at the Chinese Academy of Sciences told SCMP.

“他们(项目研究人员)是无法突破大自然保护伞的黑暗局面 - 除非他们是带有一些秘密武器的汤姆克鲁斯,”一位来自上海光学精密机械研究所的匿名的中国科学院研究员告诉南华早报记者。



WHAT IS LIDAR TECHNOLOGY AND HOW DOES IT WORK?

什么是激光雷达技术以及其工作原理

Lidar is a remote sensing technology that measures distance by shooting a laser at a target and analysing the light that is reflected back.

激光雷达是一种遥感技术,通过向目标发射激光并分析反射光线来测量距离。

The technology was developed in the early 1960s and uses laser imaging with radar technology that can calculate distances.

该技术开发与20世纪60年代早期,采用激光成像和雷达技术来预测距离。

It was first used in meteorology to measure clouds by the National Center for Atmospheric Research.

它首先被用于气象学,由国家气象局使用,测量云量。

The term lidar is a portmanteau of 'light and 'radar.'

激光雷达这个术语是“光和雷达”的集合体。

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The technology helped researchers discover sites much faster than using traditional archaeological methods.

相对于传统的考古方式,该技术帮助研究人员更快地发现遗址。