Talk:BeiDou

message: 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) .
:I added a new paragraph regarding the previous article. --Voidvector 05:34, 9 November 2006 (UTC)
thread_title: Slashdotted NewScientist article

message: 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 . Thank you. --Heilme 11:04, 8 December 2006 (UTC)
thread_title: Compass SatNav

message: 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)
thread_title: Should be called Compass

message: In Chinese, 北斗 (Beidou) is the Big Dipper.  The North Star is 北極 (Beiji). Jpatokal 10:50, 23 October 2007 (UTC)
thread_title:  Big Dipper, not North Star 

message: I can't see any need for clean up.
Chasnor15 (talk) 20:33, 31 March 2008 (UTC)
thread_title:  No clean-up needed

message: 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)
thread_title:  BaiDou is composed of 3 systems 

message: I wrote a new Compass page with more details--Asimsky (talk) 09:08, 17 May 2008 (UTC)
thread_title:  Compass page augmented 

message: 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)
replies: text: When no one is objecting this, I would like to remove the cleanup tag in one week.Hugo (talk) 10:09, 20 May 2010 (UTC)
replies: text: Removed the template. Hugo (talk) 12:08, 26 May 2010 (UTC)
thread_title: Remove the cleanup template

message: I oppose the merger. The lead of the article on Compass says it's a different system.--Cattus talk 17:43, 1 January 2012 (UTC)
replies: text: Support: The Compass article is quite short and could nicely be merged into the Beidou article, which could be set out to highlight the differences between the two systems; if the Beidou-2 sections are expanded as such that they could be standalone, then they could be split out at a future date. SalopianJames - previously Colds7ream (talk) 11:22, 14 January 2012 (UTC)

text: Support: I agree with James, having one article talking about both would be better. This article does a good job talking about Biedou 1, while the Compass article is short. The Compass article needs serious expansion to get it equal to this article.--NavyBlue84 17:04, 22 January 2012 (UTC)
thread_title: Merger discussion

message: In this edit  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)
replies: text: I found a replacement! :-) SalopianJames - previously Colds7ream (talk) 13:32, 13 January 2012 (UTC)
replies: text:  THX!  CiaPan (talk) 15:10, 13 January 2012 (UTC)
thread_title:  Ref broken 

message: 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)
thread_title:  Re: Position calculation scalability 

message: The name COMPASS Navigation Satellite System has been abandoned, the only offical name now is  BeiDou Navigation Satellite System , abbreviated to BDS.  
 
according to :
* BeiDou Satellite Navigation Experimental System= Beidou-1=a regional navigation system
* BeiDou Navigation Satellite System =  BeiDou-2 or former COMPASS = a global satellite navigation system
-Daveduv (talk) 03:24, 2 January 2013 (UTC)
thread_title: BeiDou Navigation Satellite System=Beidou-2 

message: 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)
thread_title:  Precision claim 

message: Substituted at 17:59, 5 June 2016 (UTC)
thread_title: Assessment comment

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message: 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)
thread_title:  "more than 30 satellites"