为什么要发展北斗？27年前，中国被迫陷入恐慌

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南方地区遭遇洪水和暴雨后，湖南省石门县突发山体滑坡，5栋房屋倒塌。所幸无人伤亡。
 

因为before landslide石门县14家庭33人提前收到北斗卫星发出警告Evacuate in time

每时每刻When each Beidou satellite is launchedBesides looking up at the starsLament the magic of technologywe don't knowBeidou satellite’s impact on our daily lives有有多重要

1983大韩航空007飞行从纽约起飞后Mysterious entry into Soviet airspaceThe night is darkThe Soviet Union many times火警鸣枪The civilian airliner did not notice

When about to leave Soviet airspaceshot down by missile

通过黑匣子调查揭示由于船长操作错误Not performing standard flight mode地磁导航故障导致飞机偏离预定航线客机Entering airspace by mistake

两年后存在全球GPS研讨会优于The United States made it clearHPMC胶囊确保国土安全应对紧急情况The United States will, under special circumstancesThree things to do about GPS

a. 降低对方的导航精度

b. 可随时更改编码

c. 开展区域管理

为了不被他人控制Bu Qingjun found an academician of the Chinese Academy of SciencesChen Fangyun共同讨论卫星定位计划

美国GPS测距四星级定位In order to save moneyDesigned by Chen FangyunTwo-star positioningFirst satisfy domestic navigation and positioning 

卫星导航非常复杂。Launched around the Earth24卫星申请三个不同的轨道表面knitted into one网络人们可以随时随地同时看到它。四星美国全球定位系统的发展它正是基于这一原则。

China Gang改革开放National power is limitedSatellite positioning plans have to be postponed 

直到1993中国银河Carrying goods such as stationery, small hardware, mechanical parts and dyes从天津港出发计划运往中东

Galaxy所在海域的GPS信号已关闭这艘船被迫在印度洋漂流。33天空

在开始The project team is not in one room20Working in a square meter roomNo satellite in handJust from the other two satellite programsFree up two spare satellites北斗还设计了一个专属功能——短消息

1995项目陷入困境第一关Unable to solve the problem of "fast tracking" of satellite signals

When everyone is at a loss王飞雪，Yong Shaowei和欧洲钢铁公司他们三人尚未获得博士学位。20年轻人拿出一套"Fully Digital" Solution 三个人in less than one10square meters of laboratory举行4一万元资金Surrounded by a relatively advanced computer耗时的3年份测试获得了第一批产品“快速捕获精子并跟踪”数据 

2000北斗三号第一枪继美国和俄罗斯之后China becomes the third in the world已建立卫星导航系统的国家

2002为了不过度依赖GPS由欧盟发起“伽利略”卫星计划此时中国北斗三号遇到技术瓶颈欧盟缺乏研发资金decided by both parties共同发展 

Chinese payment2.7After the franchise fee of 100 million euros不仅No access to core technology还No right to discusscompletely excluded然后中国决定单干。 

此时掐住北斗的喉咙The second hurdle

hydrogen atomic clock

Satellite positioning in space是时候计算空间了。原子钟是计时工具 

然后仅由美国和欧洲Mastering Atomic Clock Technology先前China buys atomic clocks from a European companyBut after China decided to go it alone暂时再次不作为产品销售科学家们别无选择，只能叹息。走上前通往原子钟独立研发之路 幸好只用了两年时间中国原子钟已投入使用300万年来唯一的错误1秒

北斗二号飞向天堂解决亚太定位问题紧接着第二年汶川疫情8级地震地震震中英秀市的道路、电力和通讯均中断。与外界失去联系数万人仍然活着，也有数万人死去。 地震20几个小时后第一单元Breaking through the death line走进映秀借助北斗码头终于可以发出求救信号了这就是地震震中向外界传播的信息。第一条消息

2009在解决国内和亚太地区定位问题之后北斗三号开始审视世界成立全球定位系统Hit head on第三次测试

Unable to establish ground stations overseas

Since it is not allowed to be built overseasThen we simply build a bridge for global satellites

北斗队80后一代建议"Inter-satellite link"巧妙的伎俩

Here comes the problem卫星间链路在哪里？

Strictly speaking, it is to enable global satellite interconnection. As long as there is one satellite in China's airspace, all satellites can contact domestic ground stations through it.

直白地说，这意味着将所有卫星聚集在一起，共享它们的位置。

2017配备“微信群”技术北斗三号成功启动

202023 年 6 月最后一颗北斗卫星在西昌成功发射。到目前为止耗时的26年份发射55卫星投资120十亿30Thousands of people participated跨越三代人China Beidou completes deployment of global satellite navigation system

26多年后的今天Our fishing boats and ships发生危险或威胁时不仅保证实时现场定位It can also be sent out immediately1000求助词no longer be controlled by others

由于北斗队of30成千上万的人杭驰 杭驰silently studying9490日夜

尽管Beidou technology looks very unpredictable

定位、通信和授时功能非常实用。

北斗指引方向The dragon enters the seaShenzhou Feitian墨子关羽游荡天堂玉兔飞向月球

北斗不仅实现了全球定位，还重新夺回了主动权。 如今陛下有了大臣，就像天上有北斗一样。北斗是天庭的代言人，而尚书也是陛下的代言人。 ——《后汉书·李固传》

It is also realizing what the ancients did浪漫的宇宙之梦 世界The earliest development of astronomy其中一个国家古人对北斗七星情有独钟。Xia Dynasty used it to determine第一个月和六月The Warring States Period used it to determine东南、西北和春季，夏季，秋季和冬季

If the handle of the bucket points to the east, everything will be spring; if the handle of the bucket points to the south, everything will be summer; if the handle of the bucket points to the west, everything will be autumn;The handle of the bucket points north, and it is winter all over the world.——"He Guanzi? Circulation" in the Warring States Period,周朝时期用它来饮酒。

历代诗人都曾用它来饮酒作诗。

as the only existingFour ancient civilizations中国的北斗工程指向未来。It is also continuing中国五千年 此时北斗队正乘坐时光穿梭机。在团队中80和90背部歌唱"The stars in the sky join the Big Dipper"回应杜甫

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