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 | Text and/or other creative content from this versionofCompass navigation system was copied or moved into Beidou navigation system with this edit on 10:49, 29 January 2012. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. |
http://www.newscientist.com/article/dn10472-chinas-satellite-navigation-plans-threaten-galileo.html —The preceding unsigned comment was added by 70.20.76.96 (talk • contribs) .
What is the difference between "Beidou" and "Compass" SatNav system? I understand that China is now trying to expand its Beidou system from just 3 satellites (sloppy; only for regional) into a 35-satellite system. But is this improved Beidou system the same as the new Compass system? See [1]. Thank you. --Heilme 11:04, 8 December 2006 (UTC)[reply]
Is there an authoritative capitalization of the "beidou" system? I see "Beidou" and "BeiDou" in the same articles (including this page). I know we are dealing with transliteration of Chinese, but it just feels sloppy to be inconsistent, unless there is a valid distinction. Grasping at straws, I might imagine that "BeiDou" is the system and "Beidou" refers to the satellites? FusionDude (talk) 16:35, 30 May 2018 (UTC)[reply]
This article should be renamed the Compass Navigation Satellite System.
Beidou is the name of the individual satellites in the system. The system itself is called "Compass." --128.135.96.162 21:50, 6 February 2007 (UTC)[reply]
For what its worth, the names Compass and Beidou seem to be used interchangeably at present to whatever name suits the purpose of the news article being published.
The following copy from GNSS sounded like a lot of info. It might be all original research, but I don't want Yongke to think I was dumping his edits to GNSS. If its good material, it should be integrated into this article first.
In Chinese, 北斗 (Beidou) is the Big Dipper. The North Star is 北極 (Beiji). Jpatokal 10:50, 23 October 2007 (UTC)[reply]
I can't see any need for clean up. Chasnor15 (talk) 20:33, 31 March 2008 (UTC)[reply]
Being partly a Compass specialist (at least an author of a paper on Compass), I think the article is tolerable, but some thoughtful modification could help to make it more clear. I want to write more about Compass but this shall go in the Compass article. You see, the problem is that there is no such thing as "Beidou navigation system", but there are two independent systems: Beidou-1 and Beidou-2. So in fact having 2 independent articles would bemore logical. On the other hand, Beidou-1 is completely shrouded in secrecy, so not so much can be added on top of what is already said in this article. On the other hand, there is a lot more information on Beidou-2 which shall keep attracting atttention for many years to come. To make the naming issue more clear: Compass is a European name,used in Western literature, while the Chinese call it Beidou-2. I suggest to leave the article as is but after the Compass paper shall be done, edit the text to make the terminology and the relationship between the systems more clear. Asimsky (talk) 10:42, 10 May 2008 (UTC)[reply]
I wrote a new Compass page with more details--Asimsky (talk) 09:08, 17 May 2008 (UTC)[reply]
I have made some changes to the text, though it may still need to be expand or improved, but I suppose, it no longer needs to be cleaned up ;-) Hugo (talk) 22:15, 19 May 2010 (UTC)[reply]
from Portal:Current events/2011 December 28 and
from Talk:Global Positioning System 99.181.153.29 (talk) 08:00, 29 December 2011 (UTC)[reply]
Ioppose the merger. The lead of the article on Compass says it's a different system.--Cattus talk 17:43, 1 January 2012 (UTC)[reply]
The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
In this edit [2] a <ref>—tag name has been removed and now 'Compass-IGSO3' satellite description in 'List of Satellites' table has a broken reference. --CiaPan (talk) 13:25, 10 January 2012 (UTC)[reply]
CiaPan (talk) 15:10, 13 January 2012 (UTC)[reply]Compared to GPS, the process given here seems to have a lot of overhead in receiving and forwarding signals, and would, I guess, put a huge load on the satellites. GPS seems, on first reading, indefinitely more scalable. Is this correct? I know nothing about the subject, so apologies in advance 83.244.217.149 (talk) 10:36, 8 June 2012 (UTC)[reply]
The name COMPASS Navigation Satellite System has been abandoned, the only offical name now is BeiDou Navigation Satellite System , abbreviated to BDS. [3] [4]
according to [5]:
-Daveduv (talk) 03:24, 2 January 2013 (UTC)[reply]
I removed the following bit in italics from the Position Calculation section:
In 2007, the official Xinhua News Agency reported that the resolution of the BeiDou system was as high as 0.5 metres.considerably better than unaided GPS.
On the face of it, this claim is completely untrue, as GPS carrier phase measurements and position calculation can do much, much better than that. I think what is meant is something like "much better in everyday performance than everyday GPS", but it's both hard to communicate and not really very meaningful in the end since we have to constrain the claim so much to make it true. siafu (talk) 17:41, 12 March 2014 (UTC)[reply]
The comment(s) below were originally left at Talk:BeiDou/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
| It is more or less, to me, like a piece of news broadcast on CCTV-2.--Natasha2006 14:17, 10 April 2007 (UTC)[reply] |
Substituted at 17:59, 5 June 2016 (UTC)
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Since June 23, 2020 the last of the planned satellites is in orbit now, the number is above 30. https://www.youtube.com/watch?v=E1nphyYr__E https://news.cgtn.com/news/2020-06-24/Beidou-s-completion-of-global-reach-shows-China-s-innovation-momentum-RA7mjW5BT2/index.html
So, there is need for some update. --Manorainjan 14:46, 25 June 2020 (UTC)[reply]
I have heard and read claims that Beidou requires 2 way communication to provide a position, thereby providing the possibility of tracking users and presumably providing false positioning. E.g. [1]
The article does not include much technical information on this, the security implications and any other significant differences with other global navigation systems.
Can someone expand the article with this information with references? — Preceding unsigned comment added by Lkingscott (talk • contribs) 07:59, 11 October 2022 (UTC)[reply]
References
