超级军网中国第四颗北斗导航试验卫星今晨发射成功
来源：百度文库 编辑：超级军网 时间：2024/04/20 17:43:42
中新网西昌2月3日电(唐振宇孙自法)北京时间三日凌晨零时二十八分，中国在西昌卫星发射中心用“长征三号甲”运载火箭，成功将第四颗北斗导航试验卫星送入太空。
发射约二十四分钟后，星箭分离。西安卫星测控中心传来的数据表明，卫星准确进入预定轨道。这是中国航天二○○七年第一次卫星发射，也是“长征”系列运载火箭的第九十五次飞行。
此前，中国先后于二○○○年十月三十一日、十二月二十一日和二○○三年五月二十五日成功发射三颗北斗导航试验卫星，在此基础上建立的中国北斗导航试验系统运行至今工作稳定、状态良好，已在测绘、电信、水利、交通运输、渔业、勘探、森林防火和国家安全等诸多领域逐步发挥重要作用。
有关部门负责人介绍说，这次发射的卫星，将进一步提高中国北斗导航试验系统的性能和可靠性，还将进行中国北斗卫星导航系统(Beidou为中文音译名称)的有关试验。
该负责人表示，在北斗导航试验系统的基础上，中国正在实施建设北斗卫星导航系统，计划二○○八年左右满足中国及周边地区用户对卫星导航系统的需求，并进行系统组网和试验，逐步扩展为全球卫星导航系统。这个系统将主要用于国家经济建设，为中国的交通运输、气象、石油、海洋、森林防火、灾害预报、通信、公安以及其他特殊行业提供高效的导航定位服务。
专家称，卫星导航系统为人类带来了巨大的社会和经济效益，目前世界上只有少数几个国家能够自主研制生产卫星导航系统。中国自行研制生产的北斗卫星导航系统，不仅具备在任何时间、任何地点为用户确定其所在的地理经纬度和海拔高度的能力，而且在定位性能上有所创新。
本次发射的北斗导航试验卫星和用于发射的“长征三号甲”运载火箭，分别由中国航天科技集团公司所属中国空间技术研究院和中国运载火箭技术研究院研制。中新网西昌2月3日电(唐振宇孙自法)北京时间三日凌晨零时二十八分，中国在西昌卫星发射中心用“长征三号甲”运载火箭，成功将第四颗北斗导航试验卫星送入太空。
发射约二十四分钟后，星箭分离。西安卫星测控中心传来的数据表明，卫星准确进入预定轨道。这是中国航天二○○七年第一次卫星发射，也是“长征”系列运载火箭的第九十五次飞行。
此前，中国先后于二○○○年十月三十一日、十二月二十一日和二○○三年五月二十五日成功发射三颗北斗导航试验卫星，在此基础上建立的中国北斗导航试验系统运行至今工作稳定、状态良好，已在测绘、电信、水利、交通运输、渔业、勘探、森林防火和国家安全等诸多领域逐步发挥重要作用。
有关部门负责人介绍说，这次发射的卫星，将进一步提高中国北斗导航试验系统的性能和可靠性，还将进行中国北斗卫星导航系统(Beidou为中文音译名称)的有关试验。
该负责人表示，在北斗导航试验系统的基础上，中国正在实施建设北斗卫星导航系统，计划二○○八年左右满足中国及周边地区用户对卫星导航系统的需求，并进行系统组网和试验，逐步扩展为全球卫星导航系统。这个系统将主要用于国家经济建设，为中国的交通运输、气象、石油、海洋、森林防火、灾害预报、通信、公安以及其他特殊行业提供高效的导航定位服务。
专家称，卫星导航系统为人类带来了巨大的社会和经济效益，目前世界上只有少数几个国家能够自主研制生产卫星导航系统。中国自行研制生产的北斗卫星导航系统，不仅具备在任何时间、任何地点为用户确定其所在的地理经纬度和海拔高度的能力，而且在定位性能上有所创新。
本次发射的北斗导航试验卫星和用于发射的“长征三号甲”运载火箭，分别由中国航天科技集团公司所属中国空间技术研究院和中国运载火箭技术研究院研制。
发射约二十四分钟后，星箭分离。西安卫星测控中心传来的数据表明，卫星准确进入预定轨道。这是中国航天二○○七年第一次卫星发射，也是“长征”系列运载火箭的第九十五次飞行。
此前，中国先后于二○○○年十月三十一日、十二月二十一日和二○○三年五月二十五日成功发射三颗北斗导航试验卫星，在此基础上建立的中国北斗导航试验系统运行至今工作稳定、状态良好，已在测绘、电信、水利、交通运输、渔业、勘探、森林防火和国家安全等诸多领域逐步发挥重要作用。
有关部门负责人介绍说，这次发射的卫星，将进一步提高中国北斗导航试验系统的性能和可靠性，还将进行中国北斗卫星导航系统(Beidou为中文音译名称)的有关试验。
该负责人表示，在北斗导航试验系统的基础上，中国正在实施建设北斗卫星导航系统，计划二○○八年左右满足中国及周边地区用户对卫星导航系统的需求，并进行系统组网和试验，逐步扩展为全球卫星导航系统。这个系统将主要用于国家经济建设，为中国的交通运输、气象、石油、海洋、森林防火、灾害预报、通信、公安以及其他特殊行业提供高效的导航定位服务。
专家称，卫星导航系统为人类带来了巨大的社会和经济效益，目前世界上只有少数几个国家能够自主研制生产卫星导航系统。中国自行研制生产的北斗卫星导航系统，不仅具备在任何时间、任何地点为用户确定其所在的地理经纬度和海拔高度的能力，而且在定位性能上有所创新。
本次发射的北斗导航试验卫星和用于发射的“长征三号甲”运载火箭，分别由中国航天科技集团公司所属中国空间技术研究院和中国运载火箭技术研究院研制。中新网西昌2月3日电(唐振宇孙自法)北京时间三日凌晨零时二十八分，中国在西昌卫星发射中心用“长征三号甲”运载火箭，成功将第四颗北斗导航试验卫星送入太空。
发射约二十四分钟后，星箭分离。西安卫星测控中心传来的数据表明，卫星准确进入预定轨道。这是中国航天二○○七年第一次卫星发射，也是“长征”系列运载火箭的第九十五次飞行。
此前，中国先后于二○○○年十月三十一日、十二月二十一日和二○○三年五月二十五日成功发射三颗北斗导航试验卫星，在此基础上建立的中国北斗导航试验系统运行至今工作稳定、状态良好，已在测绘、电信、水利、交通运输、渔业、勘探、森林防火和国家安全等诸多领域逐步发挥重要作用。
有关部门负责人介绍说，这次发射的卫星，将进一步提高中国北斗导航试验系统的性能和可靠性，还将进行中国北斗卫星导航系统(Beidou为中文音译名称)的有关试验。
该负责人表示，在北斗导航试验系统的基础上，中国正在实施建设北斗卫星导航系统，计划二○○八年左右满足中国及周边地区用户对卫星导航系统的需求，并进行系统组网和试验，逐步扩展为全球卫星导航系统。这个系统将主要用于国家经济建设，为中国的交通运输、气象、石油、海洋、森林防火、灾害预报、通信、公安以及其他特殊行业提供高效的导航定位服务。
专家称，卫星导航系统为人类带来了巨大的社会和经济效益，目前世界上只有少数几个国家能够自主研制生产卫星导航系统。中国自行研制生产的北斗卫星导航系统，不仅具备在任何时间、任何地点为用户确定其所在的地理经纬度和海拔高度的能力，而且在定位性能上有所创新。
本次发射的北斗导航试验卫星和用于发射的“长征三号甲”运载火箭，分别由中国航天科技集团公司所属中国空间技术研究院和中国运载火箭技术研究院研制。
继续!期待咱们的GPS!;P
请斑竹移至天版:)
被斗2？:) :) :)
行了，快了，不用再仰人鼻息了。
呵呵,我们的定位系统叫什么?完成后商业价值也大大地呀!:P
支持国货~~~:D
每个区都能见到北斗．:L
好消息:victory:
是改进型吗？
是北1,还是北2啊..?北1有什么好高兴的..
估计还是要一个接着一个的往上发射！
好消息!期待我国自己的全球定位系统早日组建!
测绘、电信、水利、交通运输、渔业、勘探、森林防火和国家安全等诸多领域逐步发挥重要作用。
这句话很重要啊:victory:
这句话很重要啊:victory:
请斑竹移至天版
最重要的是，咱们北斗是有源的！
该负责人表示，在北斗导航试验系统的基础上，中国正在实施建设北斗卫星导航系统，计划二○○八年左右满足中国及周边地区用户对卫星导航系统的需求，并进行系统组网和试验，逐步扩展为全球卫星导航系统。这个系统将主要用于国家经济建设，为中国的交通运输、气象、石油、海洋、森林防火、灾害预报、通信、公安以及其他特殊行业提供高效的导航定位服务。
==========
=========="逐步扩展为全球卫星导航系统"这句话是什么意思?不会是说未来的全球定位系统,碍事有源的吧?
==========
=========="逐步扩展为全球卫星导航系统"这句话是什么意思?不会是说未来的全球定位系统,碍事有源的吧?
:D :D 很好!
:D 好消息！
不声不响吓人一跳啊
听说是00年发射的那两颗卫星的备份星，那两颗的寿命差不多快到了。
好啊。继续努力
喜讯不少啊:D
一个 两个 三个 四个
哈哈
还有更多的，期待中．．．
哈哈
还有更多的，期待中．．．
现在定位精度不知能达到多少？
既与欧洲合作搞伽利略，又开发自己的北斗~
这是既修栈道、又渡陈仓啊
奈我若何？
这是既修栈道、又渡陈仓啊
奈我若何？
好消息!
好消息, 期待中, 北斗的精度依赖于它的数量, 希望越多越好.
在北斗可覆盖区域内，咱们可以摆托对GPS的依赖。
http://www.sinodefence.com/strategic/spacecraft/beidou2.asp
注意最后一句话：A second launch is expected within few weeks.
Compass Navigation Satellite System (BeiDou-2)
Last updated: 3 February 2007
China is planning to build a navigation satellite constellation known as Compass Navigation Satellite System (CNSS), or “BeiDou” in its Chinese name. The system will be based on its current Compass Satellite Navigation Experimental System (BeiDou-1), which will be able to provide navigation and positioning services to users in China and its neighbouring countries by 2008. The system will be gradually expanded into a navigation satellite constellation comprising 5 Geostationary Earth Orbit (GEO) satellites and 30 medium Earth orbit satellites, which can provide navigation and positioning services to global users. The first two satellites were scheduled to be launched in early 2007.
The CNSS will provide two types of services: a free service for civilian users will have positioning accuracy within 10 metres, velocity accuracy within 0.2 metre per second and timing accuracy within 50 nanoseconds; and a licensed service with higher accuracy for authorised and military users only. The system will initially cover China and its neighbouring countries only but will eventually extend into a global navigation satellite network.
Unlike the current Beidou Satellite Navigation Experimental System, which requires dual-way transmissions between the user and the central control station via the satellite, the new generation CNSS will allow ground receiver to calculate its position by measuring the distance between itself and three or more satellites, similar to the method of operation of the GPS and GLONASS systems.
The People’s Liberation Army (PLA) has been pursuing a space-based navigation and positioning capability to improve the accuracy of its weapon systems and the situational awareness of its forces since the late 1990s. The Chinese civilian sectors, as well as some military research organisations, have been using the American GPS system and Russian Global Navigation Satellite System (GLONASS) to provide limited accurate positioning capabilities. However, an independent satellite navigation network would allow Chinese forces to maintain its satellite navigation capability in time of crisis without relying on foreign satellites.
Following the three successful launches of the BeiDou-1 satellites in 2000 and 2003, China began to launch the second-generation BeiDou-2 satellites in 2007. The first BeiDou-2 navigation experimental satellite was successfully placed into orbit on Saturday 3 February 2007. A CZ-3A three-stage space launch vehicle carrying the satellite lifted off from Xichang Satellite Launch Centre (XSLC) at 16:28 GMT on 2 February (00:28 local time on 3 February). The satellite was separated from the launch vehicle about 24 minutes later. Data from the Xi'an Satellite Monitoring & Control Centre showed that the satellite had accurately entered its planned orbit.
The satellite was placed into the GEO, presumably to complement the three existing regional Beidou-1 geostationary satellites by occupying the open slots at Longitudes 58.75 and 160 degrees East. A second launch is expected within few weeks.
注意最后一句话：A second launch is expected within few weeks.
Compass Navigation Satellite System (BeiDou-2)
Last updated: 3 February 2007
China is planning to build a navigation satellite constellation known as Compass Navigation Satellite System (CNSS), or “BeiDou” in its Chinese name. The system will be based on its current Compass Satellite Navigation Experimental System (BeiDou-1), which will be able to provide navigation and positioning services to users in China and its neighbouring countries by 2008. The system will be gradually expanded into a navigation satellite constellation comprising 5 Geostationary Earth Orbit (GEO) satellites and 30 medium Earth orbit satellites, which can provide navigation and positioning services to global users. The first two satellites were scheduled to be launched in early 2007.
The CNSS will provide two types of services: a free service for civilian users will have positioning accuracy within 10 metres, velocity accuracy within 0.2 metre per second and timing accuracy within 50 nanoseconds; and a licensed service with higher accuracy for authorised and military users only. The system will initially cover China and its neighbouring countries only but will eventually extend into a global navigation satellite network.
Unlike the current Beidou Satellite Navigation Experimental System, which requires dual-way transmissions between the user and the central control station via the satellite, the new generation CNSS will allow ground receiver to calculate its position by measuring the distance between itself and three or more satellites, similar to the method of operation of the GPS and GLONASS systems.
The People’s Liberation Army (PLA) has been pursuing a space-based navigation and positioning capability to improve the accuracy of its weapon systems and the situational awareness of its forces since the late 1990s. The Chinese civilian sectors, as well as some military research organisations, have been using the American GPS system and Russian Global Navigation Satellite System (GLONASS) to provide limited accurate positioning capabilities. However, an independent satellite navigation network would allow Chinese forces to maintain its satellite navigation capability in time of crisis without relying on foreign satellites.
Following the three successful launches of the BeiDou-1 satellites in 2000 and 2003, China began to launch the second-generation BeiDou-2 satellites in 2007. The first BeiDou-2 navigation experimental satellite was successfully placed into orbit on Saturday 3 February 2007. A CZ-3A three-stage space launch vehicle carrying the satellite lifted off from Xichang Satellite Launch Centre (XSLC) at 16:28 GMT on 2 February (00:28 local time on 3 February). The satellite was separated from the launch vehicle about 24 minutes later. Data from the Xi'an Satellite Monitoring & Control Centre showed that the satellite had accurately entered its planned orbit.
The satellite was placed into the GEO, presumably to complement the three existing regional Beidou-1 geostationary satellites by occupying the open slots at Longitudes 58.75 and 160 degrees East. A second launch is expected within few weeks.
不知道要几颗才是完整的体系,好像是6颗?
:victory: 顶
千里眼...!
希望,再接再厉!!!!
我要飞得更高，哈哈。
降低发射成本是硬道理
好消息，顶
要顶要顶!!!
好东西啊!
好东西啊!
2010年能建成吗？
支持啊以后就可以不用GPS拉