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北斗卫星实现深海实时数据传输

文章来源:admin    时间:2019-02-11

  China has achieved real-time transmission of deep-sea data at 6,000-meter depth through its self-developed BeiDou satellites for the first time.   中国利用自主研发的北斗卫星首次实时获得6000米的深海数据。   China's most sophisticated research vessel1 Kexue (Science) returned to the eastern port city of Qingdao on Thursday after wrapping up a 74-day, 12,000-nautical mile expedition. During the trip, Chinese scientists maintained and upgraded the country's scientific observation network in the West Pacific, according to the Institute of Oceanology under the Chinese Academy of Sciences (CAS).   Researchers replaced batteries on 20 sets of submersible buoys2 on the network, optimized3 their positions and installed BeiDou satellite communication modules4 in them.   As the low-volume submersible buoys powered by batteries can only be retrieved5 once a year, the communication modules were designed to be tiny, power saving and run steadily6.   "The data collected by the submersible buoys, including the temperature, salinity7, flowing speed and direction of seawater, should be transmitted back to the ground lab by satellites. The amount of data was huge," said Wang Jianing, a researcher at the institute. So they developed multi-module communication and transmission technology, greatly lifting transmission efficiency.   The breakthrough research vessel Kexue made changed the situation. Before, real-time observation of marine8 data had relied on foreign remote sensing satellites. Now there was improved data transmission security and reliability9, according to Wang Fan, director of the Institute.
1 vessel      n.船舶;容器,器皿;管,导管,血管 参考凯发k8娱乐登录例句:
  • The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
  • You should put the water into a vessel.你应该把水装入容器中。
2 buoys      n.浮标( buoy的名词复数 );航标;救生圈;救生衣v.使浮起( buoy的第三人称单数 );支持;为…设浮标;振奋…的精神 参考例句:
  • The channel is marked by buoys. 航道有浮标表示。 来自《现代汉英综合大词典》
  • Often they mark the path with buoys. 他们常常用浮标作为航道的标志。 来自辞典例句
3 optimized      adj.最佳化的,(使)最优化的v.使最优化,使尽可能有效( optimize的过去式和过去分词 ) 参考例句:
  • We are often asked whether consumer Web sites should be optimized for beginners or intermediates. 我们常常被问到这样的问题:消费类网站究竟应该为新手而优化,还是应该为中间用户而优化? 来自About Face 3交互设计精髓
  • GOOGLE Advertising optimized sequence, greatly increasing the advertising effect. 优化了GOOGLE广告位排列顺序,大大增加了广告效果。 来自互联网
4 modules      n.模块( module的名词复数 );单元;(宇宙飞船上各个独立的)舱;组件 参考例句:
  • The course consists of ten core modules and five optional modules. 这门课程包括十个必修单元和五个选修单元。
  • Our English course is divided into modules on poetry, drama, and novels. 我们的英语课分为诗歌、戏剧和小说等单元。 来自《简明英汉词典》
5 retrieved      v.取回( retrieve的过去式和过去分词 );恢复;寻回;检索(储存的信息) 参考例句:
  • Yesterday I retrieved the bag I left in the train. 昨天我取回了遗留在火车上的包。 来自《简明英汉词典》
  • He reached over and retrieved his jacket from the back seat. 他伸手从后座上取回了自己的夹克。 来自辞典例句
6 steadily      adv.稳定地;不变地;持续地 参考例句:
  • The scope of man's use of natural resources will steadily grow.人类利用自然资源的广度将日益扩大。
  • Our educational reform was steadily led onto the correct path.我们的教学改革慢慢上轨道了。
7 salinity      n.盐分;咸度;盐浓度;咸性 参考例句:
  • In the sea water sampled the salinity is two parts per thousand.在取样的海水中,盐度为千分之二。
  • In many sedimentary basins the salinity of the formation water increases with depth or compaction.在许多沉积盆地中,地层水的含盐量随深度或压实作用而增高。
8 marine      adj.海的;海生的;航海的;海事的;n.水兵 参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
9 reliability      n.可靠性,确实性 参考例句:
  • We mustn't presume too much upon the reliability of such sources.我们不应过分指望这类消息来源的可靠性。
  • I can assure you of the reliability of the information.我向你保证这消息可靠。

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