日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Beidou system's applications spread around globe

By Zhao Lei | China Daily | Updated: 2020-06-24 07:39
Share
Share - WeChat
China launches the last satellite of the Beidou Navigation Satellite System from the Xichang Satellite Launch Center in Southwest China's Sichuan province, June 23, 2020. [Photo by Hu Xujie/For chinadaily.com.cn]

Timetable for nation's space-based navigation program

The drive to establish a domestically developed satellite network for navigation and positioning was initiated by naval researchers in the mid-1960s to meet the needs of marine navigation.

In March 1969, defense technology authorities decided to begin research and development of navigation satellites. That July, the satellites' overall design, technical requirements and development schedule were decided by spacecraft researchers.

In November 1970, Qian Xuesen, a distinguished scientist and founder of China's space industry, named the project "Lighthouse 1".

In December 1980, defense technology authorities closed the program due to financial and technological difficulties.

In 1983, some renowned Chinese scientists, headed by Chen Fangyun, proposed building an experimental two-satellite positioning system. The idea was demonstrated and verified using two communications satellites in 1989.

In February 1994, the government approved and began research and development on a space-based navigation and positioning system, aiming to mitigate the country's heavy reliance on foreign networks. The system was named "Beidou".

In October 2000, China launched the first Beidou satellite. In December, the second Beidou satellite was put into orbit to join the first to establish an experimental system. In May 2003 and February 2007, another two experimental satellites were launched to join a trial run.

Beidou's first mass-production satellite, also the first in its second-generation series, was launched in April 2007. The first two third-generation satellites were launched in November 2017.

Deployment of Beidou's space-based assets has accelerated in the past two years, with 17 launches placing 28 satellites into orbit.

The China Satellite Navigation Office planned to place the last two third-generation Beidou satellites into orbit before the end of 2020 and achieved this goal about six months ahead of the deadline with the last launch on Tuesday.

|<< Previous 1 2   
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 九九99久久 | 国产成人精品三级 | 精品久久久久久久久久 | 久久影片| 777奇米影视色888成人 | 日本高清动作片www网站免费 | 青娱乐免费视频在线观看 | 5252sese| 美国av在线免费观看 | 国产精品入口免费麻豆 | 中文字幕专区 | 日韩久久一级毛片 | 激情九月 | a级网站 | 人人狠狠综合久久亚洲 | 中文区永久区 | 国产福利不卡一区二区三区 | 国产高清在线观看 | 欧美黄色一区 | 高清国语自产拍免费视频国产 | 91视频国内 | 国产色| 亚洲h| 国产中文字幕在线观看 | a在线v| 欧美啪啪 | 成人小视频在线观看免费 | 成人激情视频网站 | 98精品国产高清在线xxxx | 九九久久精品视频 | 色综合区| 日韩欧美一区二区三区免费观看 | 国产免费观看一区 | 久久久久久久成人 | 久久成人国产精品免费 | 亚洲欧美日韩中文不卡 | 精品国产乱码久久久久久1区2区 | 精品国产一区二区在线 | 综合精品在线 | 国产精品成人在线观看 | 韩国日本在线 |