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  • [piano music, LRO title]

    [鋼琴曲,LRO標題]

  • [piano music, LRO title] Narrator: NASA scientists routinely use lasers to track the

    [鋼琴曲,LRO標題] 旁白:美國宇航局的科學家們經常使用脈衝光來追蹤人類的蹤跡。

  • position of the Lunar Reconnaissance Orbiter's laser altimeter as it orbits the moon.

    月球偵察軌道器'的脈衝光測高儀繞月球運行時的位置。

  • Recently, however, they also tried something a little...different. In addition to tracking

    不過最近,他們也嘗試了一些......不同的東西。除了追蹤

  • the instrument, they used the laser to send a picture of the famous Mona Lisa in the first demonstration

    的儀器,他們用脈衝光發送了著名的蒙娜麗莎的圖片,在第一次演示中。

  • of laser communication with a satellite at the moon. To do this, the LRO team

    與月球上的衛星進行脈衝光通信的技術。為此,LRO小組

  • used the existing laser tracking signal--sent by the Next Generation Satellite Laser

    使用現有的脈衝光跟蹤信號--由下一代衛星激光器發送。

  • Ranging Station at NASA's Goddard Space Flight Center. The image was divided into pixels,

    美國宇航局'的戈達德太空飛行中心的測距站。該影像被劃分為像素。

  • which were then sent to the spacecraft one at a time by re-timing the regular tracking pulses.

    然後,通過重新安排常規跟蹤脈衝的時間,每次向航天器發送一個脈衝。

  • By delaying the tracking pulses by specific amounts, LRO scientists

    通過將跟蹤脈衝延遲特定的時間,LRO的科學家。

  • could use the difference between the expected arrival time and the actual arrival time to indicate the brightness

    可以用預計到達時間和實際到達時間的差值來表示亮度。

  • of an individual pixel. Once the image was sent, scientists corrected for

    的單個像素。一旦影像被髮送,科學家們就會對其進行校正。

  • transmission errors caused by the Earth's atmosphere using common techniques used in CDs and

    使用CD和CD中使用的常見技術,由地球大氣層引起的傳輸錯誤。

  • DVDs. They also studied signal fluctuations due to Earth's atmosphere.

    DVDs。他們還研究了由於地球'大氣層引起的信號波動。

  • The final image was verified when it was returned to Earth using LRO's radio telemetry system.

    最後的影像在使用LRO'的無線電遙測系統返回地球時得到了驗證。

  • This test--and the data obtained from it--sets the stage for future

    這個測試--以及從中獲得的數據--為未來的發展奠定了基礎。

  • high data-rate laser communication demonstrations that will be a central feature of NASA's next

    高數據率脈衝光通信演示,這將是美國宇航局下一步工作的核心特徵。

  • moon mission, the Lunar Atmosphere and Dust Environment Explorer. So, while

    月球任務,月球大氣和塵埃環境探測器。所以,雖然

  • lasers are currently being used to track NASA satellites, in the future they may also be used to communicate

    脈衝光目前正被用於跟蹤美國航天局的衛星,未來還可能被用於通信

  • with them, sending not only data, but perhaps images that one day wil be as famous as...

    發送的不僅是數據,也許還有影像,有一天會像... ...

  • the Mona Lisa. [piano music, Mona Lisa image]

    蒙娜麗莎。[鋼琴曲,蒙娜麗莎圖片]

  • [piano music, beeping, satellite flies by Earth]

    [鋼琴音樂,嗶嗶聲,衛星飛過地球]

  • [piano music, beeping, Goddard Space Flight Center information]

    [鋼琴音樂,嗶嗶聲,戈達德太空飛行中心資訊]

  • [piano music]

    [鋼琴曲]

  • [piano music fades, black screen]

    [鋼琴音樂消失,黑屏]

[piano music, LRO title]

[鋼琴曲,LRO標題]

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B1 中級 中文 脈衝光 鋼琴曲 月球 蒙娜麗莎 發送 跟蹤

NASA 蒙娜麗莎在月球 | Mona Lisa on the Moon

  • 122 9
    Zenn 發佈於 2013 年 04 月 05 日
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