评论: 北斗系统总设计师:北斗系统整体核心指标已超GPS

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charley3 发表评论于 2023-08-06 10:06:11
去问问天上飞的飞机,大洋中的轮船,是在用北斗还是GPS。
wxcbug 发表评论于 2023-08-06 09:00:33
三本正经 发表评论于 2023-08-05 18:18:56 楼下这是偷梁换柱,GPS用户只关心定位精度,其它都是内部指标
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时间精度不高,定位精度肯定不行。北斗可以大幅提高精度,和时钟精度大幅提高有直接联系,定位计算需要依赖时间,而不同卫星的时间需要保存精准,否则对于光速,那点距离差距的计算会产生巨大误差。

美国GPS推出了多年,而且军用等级更高,民用等级被北斗超越不难,不过接下来美国新一代GPS会很多升级。
direstrait 发表评论于 2023-08-05 21:47:00
美国都是偷偷摸摸的干,厉害国都是明目张胆的吹。
abvysk2023 发表评论于 2023-08-05 20:09:53
亩产万斤了,快给我升职吧。
wxcbug 发表评论于 2023-08-05 17:14:26
luting 发表评论于 2023-08-05 07:15:00
时钟精度和我无关,关键是定位精度

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定位精度和时间精度相关,而且是个重要的参数。
fonsony 发表评论于 2023-08-05 14:26:00
老實說,好不好我不知,但共軍肯定知,在茫茫大海中,美帝的航母運行,被北斗照耀著,而共軍的測量船早就在大洋中測定了,劃定了每一個格子位置,一旦航母入到每一個格位,被衛星釘上了,跟踪著,而東風十七東風二十六就可準確命中目標了。所以說航母不足懼。可怕的是我美帝的戰略核潛艇。而中國還沒有。起碼要十年後。
OldPortland 发表评论于 2023-08-05 13:24:00
Self-proclaimed, people and officials lose contact in natural disasters, and become a powerful tool in case of man-made disasters. What the hell!
iloveCCP 发表评论于 2023-08-05 11:02:58
吹的好象美帝踏步不前似的。 实际上, 美帝的下一代GPS卫星已经发射。

LITTLETON, Colo., Jan. 18, 2023 /PRNewswire/ -- The sixth Global Positioning System III (GPS III) satellite designed and built by Lockheed Martin (NYSE: LMT) has been launched and is propelling to its operational orbit approximately 12,550 miles above Earth, where it will contribute to the ongoing modernization of the U.S. Space Force's GPS constellation.

GPS III Space Vehicle 06 (GPS III SV06) launched from Cape Canaveral Space Force Station, Florida, aboard a SpaceX Falcon 9 rocket at 7:24 a.m. EST today. About 83 minutes after liftoff, U.S. Space Force and Lockheed Martin engineers at the company's Denver Launch & Checkout Operations Center confirmed signal acquisition of GPS III SV06 and now have the space vehicle "flying" under their control.

GPS III SV06 is the 25th Military-Code satellite introduced to the constellation. The satellite will provide advanced technology to aide Space Force operators in their mission by providing positioning, navigation and timing (PNT) data to military and civil users worldwide.

"Lockheed Martin is incredibly proud to support the Space Force's GPS team as it continues to add world-class capabilities that underpin U.S. national security with enhanced performance and accuracy," said Andre Trotter, Lockheed Martin vice president for Navigation Systems. "With the last GPS III satellite complete and ready to launch, production of the first GPS IIIF vehicle is underway."

GPS is a satellite-based radio navigation system that delivers the gold standard in PNT services to America's military, U.S. allies and civil users. The satellites serve as a crucial technological foundation for internet, financial, transportation and agricultural operations, with more than 4 billion users depending on the PNT signals.

GPS III vehicles provide three times greater accuracy and eight times greater anti-jamming capability over existing satellites in the constellation. To better address mission needs and emerging threats, Lockheed Martin intentionally created GPS III with a modular design, allowing new technology and capabilities to be added in the future.

Lockheed Martin has completed production on its original GPS III SV1-10 contract, with the Space Force declaring SV10 Available for Launch on Dec. 8, 2022. GPS III SV06 will soon join SV01-05 in orbit. GPS III SV07-10 are completed and in storage at the company's facility waiting for the U.S. Space Force to call them up for launch.

Lockheed Martin is also designing and building the GPS III Follow On (GPS IIIF) for the Space Force, which will feature even more innovative capabilities than its predecessors. GPS IIIF satellites will feature an accuracy-enhancing laser retroreflector array, a new search and rescue payload, a fully digital navigation payload and more next-generation technology. In November 2022, Space Systems Command announced it exercised the third production option valued at approximately $744 million for the procurement of three additional GPS IIIF satellites from Lockheed Martin, meaning the company is now contracted to build SV11-20.

For additional GPS information, photos and video visit: ***lockheedmartin***/gps.

About Lockheed Martin

Headquartered in Bethesda, Maryland, Lockheed Martin Corporation is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.

Please follow @LMNews on Twitter for the latest announcements and news across the corporation, and @LMSpace to learn more about the latest technologies, missions and people driving the future of space.

SOURCE Lockheed Martin
原上草2017 发表评论于 2023-08-05 09:35:06
当然,厉害国几十年前就“赶美超英”了,除了中国,全世界人民都生活在水深火热之中。
都靠厉害国来拯救。
见不得不平事 发表评论于 2023-08-05 09:33:10
对于普通百姓来说,GPS是否好使还在导航,但导航需要地图公司软件的配合。今年4月的哥斯达黎加及5月的印度之旅用的都是谷歌地图,两地都出现带错路的现象。5月也在中国,用的是高德导航,导航内容极其详尽(甚至有些话唠感),到陌生地只要不超速开快车,极少可能走错路。当时就有在中国(如可以使用的话)谷歌是绝不会超过中国导航软件的感觉。所以没必要总认为只要是中国的东四就一定比国外的差(当然只要出了中国,国内的导航软件就不行了)。我过去数年经常在世界各地旅行,大多是租车自驾。应该比多数网友更有发言权。
马年生 发表评论于 2023-08-05 09:14:53
中国北斗技术新,整体性能超过GPS很正常。关键是GPS先入为主抢占了市场,现在北斗从中国开始逐步摊薄GPS的市场份额。
speakoutloudly 发表评论于 2023-08-05 09:08:02
吹吧。算法都被破译了。要是打起仗来,分分钟就是瞎子。
modems 发表评论于 2023-08-05 08:50:00
吹牛不上税
量子纠结 发表评论于 2023-08-05 08:44:00
什么叫核心指标?GPS单频接收器定位误差五米,高端双频接收器误差十几厘米,北斗定位误差是多少?未来星链这样的低轨道卫星,误差都是厘米级,北斗和GPS还比什么。
管它春夏与秋冬 发表评论于 2023-08-05 08:39:25
此刻我的脑海里闪现一个极致场景:我正靠着北斗导航,驾驶在回乡祭祖的路上,背后突然警铃大作。原来是前一天我在微信上大嘴叉子,这一刻被北斗系统的反间谍功能‘成功’判别为潜在的‘敌对分子’并实时加以举报。我借以表达的意思是,当今圣上祭出反间谍法,原想着是把怀里的宝贝捂着,其结果是搞着搞着这些宝贝他只能自个儿去玩。

别看现在推特被新主人搞得乱糟糟的,其作为天朝之外的微信版指日可待!到那时管不住嘴的我不仅可以在这个新平台上随便大嘴叉子,如果没经我同意平台就曝光我这些‘见不得人的东东’,世界首富还能被我随便削 -- 就像电影《顽主》里的情节,交二毛钱挂号费去3T公司,通过扇服务人员一大嘴巴,过一次当家作主的瘾。
据说据说 发表评论于 2023-08-05 08:30:51

北斗系统在中国以外没有任何人使用。
yardern 发表评论于 2023-08-05 08:24:43
不知为何,手机在北美收不到北斗的信号,欧洲可以。
seewhatisee 发表评论于 2023-08-05 08:18:27
厲害厲害!終於實現躺著旅遊了。讚一個!
硬码工 发表评论于 2023-08-05 08:11:22
这是典型的瞎扯文章。定位的性能指标,唯一重要的指标是定位精度,而不是实现这个定位精度的某项单一指标。星载时钟的精度即使事对手的一万倍,如不能转化为地面的定位精度的提高,没有一点的意思。同样的,星载的CPU的稳定性再好,不能提高地面的定位精度,有什么用呢?
家在北平 发表评论于 2023-08-05 07:48:34
呵呵,华为也是这么自夸“鸿蒙”的。
土拨鼠拨土 发表评论于 2023-08-05 07:39:03
北斗也是为民生,一个个去做好就行,总比躺着或下跪好
吃货2001 发表评论于 2023-08-05 07:29:00
只要还在意和同类产品的比较,就说明还是没底气。Nvidia是否一直强调自己的产品比Intel和AMD领先?
天时佳 发表评论于 2023-08-05 07:23:00
嗨起来,笑倒地!
xidada 发表评论于 2023-08-05 07:18:00
再吹吹城市排水系统
wudaniang 发表评论于 2023-08-05 07:16:43
盈利了嗎?定位精度如何?離開中國周邊有幾個人用? 看樣子芯片用的不多喔!
xidada 发表评论于 2023-08-05 07:16:00
吹吧, 还有什么没超世界?
luting 发表评论于 2023-08-05 07:15:00
时钟精度和我无关,关键是定位精度
roliepolieolie 发表评论于 2023-08-05 07:13:00
中国无论如何吹牛逼也改变不了一个事实:卫星定位导航是美国人发明的。其它国家只是跟着跑。中国搞了这么久才山寨出来,有啥好吹的!
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