Talk:Global Navigation Satellite System

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To-do list for Global Navigation Satellite System: edit · history · watch · refresh
  • Topics to be covered
    • differential satellite navigation
    • GNSS reflectometry
    • phase-counting differential satellite navigation

Contents

[edit] merge and redirect

I think this article should be merged with satellite navigation systems, and redirected there. Any objections? --Michaelfavor 16:10, 8 December 2006 (UTC)

FYI, de:Satellitennavigation merged the opposite direction. I tend to agree with a merger, but I think GNSS (This article) is probably the more important article name. --Dual Freq 16:19, 8 December 2006 (UTC)

GNSS is the accepted generic term for GPS and its peers. The taxonomy is as follows:

  • SNS
    • GNSS
      • GPS
      • Glonass
      • Galileo, etc....

It is OK to keep SNS as an overview article that covers the history up to GPS. - —Preceding unsigned comment added by 70.198.253.77 (talk • contribs) 17:42, 8 December 2006

While GNSS definately appears to be the correct generic term to describe GPS, GLONASS, GALILEO, etc. I'm not sure I understand what a GNSS article would contribute that isn't already in the SNS article? Everything here seems to be redundant or original research. Does SNS simply gain a subsection explaining what GNSS means and a redirect (GNSS -> SNS)? - Davandron | Talk 22:13, 12 December 2006 (UTC)
GNSS should be the main article since, this is the accepted term. It should have all the generic info from GPS and SNS. The GPS, GLONASS and Galileo articles should have the "brand specific" info like system details, history, status, etc. I have tagged SNS to merge that info to GNSS. I guess we could leave SNS as a brief article, or we could just merge it all. Dhaluza 03:10, 13 December 2006 (UTC)
Support: I should have read the text in merge template closer (sorry!). After the merge, we should at least explain the SNS term.
BTW, we've got this discussion occurring in two places; here and in Talk:Satellite navigation system#Merger
- Davandron | Talk 23:53, 15 December 2006 (UTC)

[edit] Discussions from Talk:Satellite navigation system

Since the articles are now merged, with GNSS inheriting the content, I've copied over the SNS discussion topics.

[edit] DGPS

DGPS only "eliminates the military advantage" as long as your DGPS transmitters are usable. DGPS transmitters can be either:

  • large and hard to jam, but easy to destroy
  • small, numerous, and difficult to destroy, but easy to jam

—The preceding unsigned comment was added by The Anome (talk • contribs) 08:24, March 12, 2003 (UTC)

[edit] Japanese DGPS

It's not accurate to say that "Some Japanese" started transmitting DGPS data and implying that this was some sort of hack, without mentioning all of the other parties (and governments) that also broadcast DGPS signals.

Arteitle 06:20 22 May 2003 (UTC)

[edit] SA

The military resisted for most of the 1990s, but SA was eventually turned off in 1999.

An anonymous user (218.101.54.21), with no other edits, changed this date from 1999 to 2000, does anybody have a source that can confirm the year? Should the change be reverted? Edward 09:10, 15 Sep 2004 (UTC)

Selective Availability was officially activated on Mar. 25, 1990 then deactivated on May 2, 2000. These dates are according to 'Introduction to GPS - the Global Positioning System' by Ahmed El-Rabbany 2nd Ed. pp. 45-46. El-Rabbany gives a citation for each date:

  • Hoffman-Wellenhof, B., H. Lichtenegger, and J. Collins, Global Positioning System: Theory and Practice,
    3rd ed., New York: Springer-Verlag, 1994. for the activation and
  • Shaw, M., K. Sandhoo, and D. Turner, "Modernization of the Global Positioning System," GPS World,
    Vol. 11, No. 9, September 2000, pp.36-44. for the deactivation.

—Preceding unsigned comment added by 134.250.31.102 (talk) 21:35, 9 May 2008 (UTC)

[edit] Glonass

The GLONASS article says that the GLONASS system is (or soon will be) once again fully operational. Should we change that in the text of this article? -- WhiteDragon 20:33, 26 September 2005 (UTC)

[edit] Merger

It's TOTALLY WRONG to remove the GNSS link and link this to “Satellite navigation system” as the main term for this page is GNSS, which will replace the term “GPS” in long terms anyway. GPS is out and GNSS is in as most receivers will be GNSS (Global Satellite Navigation Systems) which includes Galileo, Glonass and the elderly and outdated GPS, but also Japan is soon introducing it’s own GNSS.

Having the European Community launching the new Galileo satellites gives totally new aspects in navigation and in this way Europe has beaten USA in space navigation systems for at least 15 years to come. Galileo has a better atomic clock, and while GPS is only based on 2MHz, Galileo will have a much better bandwidth with its 20MHz, so more data and functions will be introduced with Galileo.

Suggestion: Link this article into GNSS, which would be definitely right, unless Wikipedia pages are American centric? —The preceding unsigned comment was added by 202.5.89.119 (talk • contribs) 05:32, August 28, 2006 (UTC)

Dhaluza 04:01, 7 December 2006 (UTC)

I have tagged both Satellite navigation system and Global Navigation Satellite System for merging. As outlined above, the term GNSS is the consensus standard of consensus standards organizations, therefore it is the correct term for an encyclopedic entry. Dhaluza 03:09, 9 December 2006 (UTC)

Ok, I must throw my comments in on something here; 202.5.89.119 why trash talk and make assumptions about the future? Your idea has merit (as Dhaluza found) and stands on its own legs without adding POV comments about what should be and what might be.
I support the use of GNSS as Dhaluza proposes. (thanks for doing the great research!) - Davandron | Talk 17:07, 12 December 2006 (UTC)

[edit] Wording

The opening sentence is poor - the terms "early" and "predecessor" are meaningless without some prior context. This article should start with a description of the subject, before starting on its history! --Pfold 14:33, 16 October 2006 (UTC)


[edit] GNSS Classification, original research?

I have searched the web to see if this is an existing concept, but can find no support. It appears to be original research. The only thing I found seems to be an opposing opinion on the classification.

“ The GNSSP subgroup concerned with GNSS service levels convened on the 22nd and 23rd of April 2002. The subjects of discussion were Working Papers that presented a proposed GNSS classification scheme, service levels and also discussed how to use such a scheme in an operational environment. The group met following discussion in Working Groups A and B that had concluded that the classification scheme and service levels appeared unnecessary and that the added value needed clarification. ”

Does anyone else know of support for this component of the article? - Davandron | Talk 14:19, 11 January 2007 (UTC)

I Googled some of the text and turned up the apparent source.Dhaluza 04:30, 13 January 2007 (UTC)

[edit] Beidou update

This section desperately need updating. The first generation is already fully operational with 3 satellite in orbit. The second generation Beidou system currently have 1 experimental satellite in orbit as of Feb 07, with new launches planned in a few weeks time. I will add these information and more to this section if no one object. Yongke 17:52, 29 March 2007 (UTC)

You were right that it was poor copy, but I feel you've missunderstood its purpose here. The reason Beidou is mentioned is because it might become a GNSS, not because its a RNSS. I've moved your edits over to the Beidou talk page; lets work on getting that page accurate first and then cleaning up all the pages that link to it. - Davandron | Talk 01:12, 30 March 2007 (UTC)

[edit] Otheruses template in the header

Regarding this revert[1], I wonder if GLONASS does not stand for "GLObal NAvigation Satellite System". --Sjhan81 03:56, 30 July 2007 (UTC)

You're right! I'll undo my revert. Roesser 13:24, 30 July 2007 (UTC)