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- 07-08-2011
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Does anyone knows any update info related to the ICD of Chinese
Compass? Released? Planned to be?
I think that the plan was to release it in 2010 (from InsideGNSS
article), but as far as I know, it's not available yet.
Thanks
Claudio
Compass? Released? Planned to be?
I think that the plan was to release it in 2010 (from InsideGNSS
article), but as far as I know, it's not available yet.
Thanks
Claudio
They seem to be struggling with a business model.
These 2010 stories both say that the ICD was being released only to
Chinese companies, with a non-disclosure agreement.
http://research.tdameritrade.com/public/common/news/printable.asp?docKey=3D=
4018-87103E30CC1F11DFACD000212804637C&imgKey=3D&newsType=3Dstocks&tdamHomel=
andStory=3D
http://www.gpsworld.com/gnss-system/compass/expert-advice-the-strategic-sig=
nificance-compass-10826
Google provides a partial English translation of the Beidou web site
(www.beidou.gov.cn or www.compass.gov.cn).
Looks like more entries on GPS than on Beidou.
On 2011-07-08 11:34 , Ed M. wrote:
Chinese manufacturers have long benefited from open standards but urge
their government to not reciprocate.
Just another reason to avoid buying Chinese products of all kinds -
though it's become very difficult to do so.
--
gmail originated posts filtered due to spam.
>> Does anyone knows any update info related to the ICD of Chinese
>> Compass? Released? Planned to be?
>> I think that the plan was to release it in 2010 (from InsideGNSS
>> article), but as far as I know, it's not available yet.
>> Thanks
>> Claudio
>> Compass? Released? Planned to be?
>> I think that the plan was to release it in 2010 (from InsideGNSS
>> article), but as far as I know, it's not available yet.
>> Thanks
>> Claudio
> They seem to be struggling with a business model.
> These 2010 stories both say that the ICD was being released only to
> Chinese companies, with a non-disclosure agreement.
>
http://research.tdameritrade.com/public/common/news/printable.asp?docKey=4018-87103E30CC1F11DFACD000212804637C&imgKey=&newsType=stocks&tdamHomelandStory=
> These 2010 stories both say that the ICD was being released only to
> Chinese companies, with a non-disclosure agreement.
>
>
http://www.gpsworld.com/gnss-system/compass/expert-advice-the-strategic-significance-compass-10826
> Google provides a partial English translation of the Beidou web site
> (www.beidou.gov.cn or www.compass.gov.cn).
> Looks like more entries on GPS than on Beidou.
> (www.beidou.gov.cn or www.compass.gov.cn).
> Looks like more entries on GPS than on Beidou.
Chinese manufacturers have long benefited from open standards but urge
their government to not reciprocate.
Just another reason to avoid buying Chinese products of all kinds -
though it's become very difficult to do so.
--
gmail originated posts filtered due to spam.
On 2011-07-08 11:34 , Ed M. wrote:
Something strange in that article:
QUOTE At the end of August 2009, there were only a total of 60,000
Beidou users. The number of registered terminal users was only 1% of the
system's capacity, leaving the satellite resource seriously under-used.
/QUOTE
There seem to be two systems, a current 'two-way' system which would
have capacity restraints and a new system that would be like GPS or
Galileo and not require transmitting to the satellites.
From Wikipedia:
QUOTE
Position calculation
To calculate a position, the following procedure is used:[3]
A signal is transmitted skyward by a remote terminal.
Each of the geostationary satellites receive the signal.
Each satellite sends the accurate time of when each received the
signal to a ground station.
The ground station calculates the longitude and latitude of the remote
terminal, and determines the altitude from a relief map.
The ground station sends the remote terminal's 3D position to the
satellites.
The satellites broadcast the calculated position to the remote terminal.
/QUOTE
But the article on Compass (in Wiki) compares it more closely to
GPS/Galileo in signal format., eg: passive receivers.
--
gmail originated posts filtered due to spam.
>> Does anyone knows any update info related to the ICD of Chinese
>> Compass? Released? Planned to be?
>> I think that the plan was to release it in 2010 (from InsideGNSS
>> article), but as far as I know, it's not available yet.
>> Thanks
>> Claudio
>> Compass? Released? Planned to be?
>> I think that the plan was to release it in 2010 (from InsideGNSS
>> article), but as far as I know, it's not available yet.
>> Thanks
>> Claudio
> They seem to be struggling with a business model.
> These 2010 stories both say that the ICD was being released only to
> Chinese companies, with a non-disclosure agreement.
>
http://research.tdameritrade.com/public/common/news/printable.asp?docKey=4018-87103E30CC1F11DFACD000212804637C&imgKey=&newsType=stocks&tdamHomelandStory=
> These 2010 stories both say that the ICD was being released only to
> Chinese companies, with a non-disclosure agreement.
>
Something strange in that article:
QUOTE At the end of August 2009, there were only a total of 60,000
Beidou users. The number of registered terminal users was only 1% of the
system's capacity, leaving the satellite resource seriously under-used.
/QUOTE
There seem to be two systems, a current 'two-way' system which would
have capacity restraints and a new system that would be like GPS or
Galileo and not require transmitting to the satellites.
From Wikipedia:
QUOTE
Position calculation
To calculate a position, the following procedure is used:[3]
A signal is transmitted skyward by a remote terminal.
Each of the geostationary satellites receive the signal.
Each satellite sends the accurate time of when each received the
signal to a ground station.
The ground station calculates the longitude and latitude of the remote
terminal, and determines the altitude from a relief map.
The ground station sends the remote terminal's 3D position to the
satellites.
The satellites broadcast the calculated position to the remote terminal.
/QUOTE
But the article on Compass (in Wiki) compares it more closely to
GPS/Galileo in signal format., eg: passive receivers.
--
gmail originated posts filtered due to spam.
wrote:
+satellite tracking system, while Compass is more of a real GNSS
system.
And yes, China plays the smart I take maximum advantage of openness
coming from other countries while we close down as much as we can.
Positively unfair.
Most products Chinese here means low price but low quality. Avoid as
much as possible...
Anyhow I wouldn't want to depend on either Compass, Beidou or Glonass.
Products from dictatorships, with no track record of playing fair.
Backup only.
Regards,
Marcelo Pacheco
> On 2011-07-08 11:34 , Ed M. wrote:
> >> Does anyone knows any update info related to the ICD of Chinese
> >> Compass? Released? Planned to be?
> >> I think that the plan was to release it in 2010 (from InsideGNSS
> >> article), but as far as I know, it's not available yet.
> >> Thanks
> >> Claudio
> >> Compass? Released? Planned to be?
> >> I think that the plan was to release it in 2010 (from InsideGNSS
> >> article), but as far as I know, it's not available yet.
> >> Thanks
> >> Claudio
> > They seem to be struggling with a business model.
> > These 2010 stories both say that the ICD was being released only to
> > Chinese companies, with a non-disclosure agreement.
> >http://research.tdameritrade.com/public/common/news/printable.asp?doc ...
> > These 2010 stories both say that the ICD was being released only to
> > Chinese companies, with a non-disclosure agreement.
> >http://research.tdameritrade.com/public/common/news/printable.asp?doc ...
> Something strange in that article:
> QUOTE At the end of August 2009, there were only a total of 60,000
> Beidou users. The number of registered terminal users was only 1% of the
> system's capacity, leaving the satellite resource seriously under-used.
> /QUOTE
> There seem to be two systems, a current 'two-way' system which would
> have capacity restraints and a new system that would be like GPS or
> Galileo and not require transmitting to the satellites.
> =A0From Wikipedia:
> QUOTE
> Position calculation
> To calculate a position, the following procedure is used:[3]
> =A0 A signal is transmitted skyward by a remote terminal.
> =A0 Each of the geostationary satellites receive the signal.
> =A0 Each satellite sends the accurate time of when each received the
> =A0 signal to a ground station.
> =A0 The ground station calculates the longitude and latitude of the remot=
e
> QUOTE At the end of August 2009, there were only a total of 60,000
> Beidou users. The number of registered terminal users was only 1% of the
> system's capacity, leaving the satellite resource seriously under-used.
> /QUOTE
> There seem to be two systems, a current 'two-way' system which would
> have capacity restraints and a new system that would be like GPS or
> Galileo and not require transmitting to the satellites.
> =A0From Wikipedia:
> QUOTE
> Position calculation
> To calculate a position, the following procedure is used:[3]
> =A0 A signal is transmitted skyward by a remote terminal.
> =A0 Each of the geostationary satellites receive the signal.
> =A0 Each satellite sends the accurate time of when each received the
> =A0 signal to a ground station.
> =A0 The ground station calculates the longitude and latitude of the remot=
> =A0 terminal, and determines the altitude from a relief map.
> =A0 The ground station sends the remote terminal's 3D position to the
> =A0 satellites.
> The satellites broadcast the calculated position to the remote terminal.
> /QUOTE
> But the article on Compass (in Wiki) compares it more closely to
> GPS/Galileo in signal format., eg: passive receivers.
> --
> gmail originated posts filtered due to spam.
> =A0 The ground station sends the remote terminal's 3D position to the
> =A0 satellites.
> The satellites broadcast the calculated position to the remote terminal.
> /QUOTE
> But the article on Compass (in Wiki) compares it more closely to
> GPS/Galileo in signal format., eg: passive receivers.
> --
> gmail originated posts filtered due to spam.
Beidou <> Compass
Beidou is a regional tracking system. It's more comparable to a GPS
+satellite tracking system, while Compass is more of a real GNSS
system.
And yes, China plays the smart I take maximum advantage of openness
coming from other countries while we close down as much as we can.
Positively unfair.
Most products Chinese here means low price but low quality. Avoid as
much as possible...
Anyhow I wouldn't want to depend on either Compass, Beidou or Glonass.
Products from dictatorships, with no track record of playing fair.
Backup only.
Regards,
Marcelo Pacheco
> Compass? Released? Planned to be?
> I think that the plan was to release it in 2010 (from InsideGNSS
> article), but as far as I know, it's not available yet.
> Thanks
> Claudio