t*******h
发帖数: 2882 | 1 http://www.spacenews.com/civil/110120-europe-china-impasse.html
Thu, 20 January, 2011
Europe, China at Impasse on Satellite Navigation
By Peter B. de Selding
ShareThis
China's Long March 3C rocket launched the third Bediou-Compass
navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
photo
China's Long March 3C rocket launched the third Bediou-Compass
navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
photo Enlarge Image
PARIS — Negotiations to resolve signal overlaps between European and
Chinese satellite navigation systems have made no progress despite more than
two years of effort and the issue now poses “a major problem for the
security of the EU,” the European Commission says.
“[A] solution will not be found without political support” from top
European authorities and from the European Parliament, according to the
commission, which is the executive arm of the 27-nation European Union (EU).
In a Jan. 18 update on Europe’s Galileo satellite navigation system,
the commission suggests that efforts to persuade China to move away from
frequencies planned for Galileo’s Public Regulated Service (PRS) have gone
nowhere. PRS is Galileo’s equivalent to the U.S. GPS military code, which
is encrypted and reserved for defense and security customers.
China is under no legal or regulatory obligation to steer clear of PRS
for its Compass/Beidou navigation system, now being deployed, because a
signal overlap will not prevent users of either system from accessing their
services.
But the overlap will make it impossible for China or Europe to jam one
another’s signals without disabling their own service. This is an issue the
United States and Europe spent several years negotiating before European
authorities agreed to place PRS on a radio frequency some distance from the
GPS military code.
The commission’s report says Galileo is in a competitive race with
Russian and Chinese navigation constellations to be the global complement to
GPS and is at risk of losing the race because of Galileo delays that likely
will mean full service is not available before 2020.
The Russian Glonass and Chinese Compass/Beidou efforts have been given
priority by their government sponsors. Glonass is now expected to return to
full global service by 2012, with Compass/Beidou following perhaps two or
three years later.
These services, plus regional systems being built by Japan and India,
and the established GPS system, “provide a challenge … in competitive
terms,” the commission says.
Already the presence of GPS as a global utility free of user fees has
forced Galileo managers to scrap former ideas of generating lots of revenue
from Galileo’s commercial service.
In the report, the commission says it has abandoned ideas of imposing a
royalty fee on navigation chipsets, and of charging commercial airlines for
use of the safety-of-life feature on a Galileo overlay feature called Egnos.
No fees will be imposed for use of the safety-of-life service on Galileo
either, the commission says, noting that GPS users get it free of charge.
In addition to causing Europe to fall into third- or fourth-place
position among navigation terminal builders worldwide, service delays will
reduce the economic benefits expected of Galileo, the commission says.
Each year’s delay of full service availability “will decrease the
value of the benefits by 10-15 percent owing to both the loss of revenue
generated and the development of alternative solutions and competing systems
,” the commission says. | D****u
发帖数: 3217 | 2 好消息
【在 t*******h 的大作中提到】
: http://www.spacenews.com/civil/110120-europe-china-impasse.html
: Thu, 20 January, 2011
: Europe, China at Impasse on Satellite Navigation
: By Peter B. de Selding
: ShareThis
: China's Long March 3C rocket launched the third Bediou-Compass
: navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
: photo
: China's Long March 3C rocket launched the third Bediou-Compass
: navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
| s*******n
发帖数: 4605 | 3 这东西还是一个国家搞的效率比较高，多囯参与就涉及到利益分配问题。搞这东西的国
家都是基于自身的安全目的和军事目的，民用的利润就全放出去让民间去挣，当作社会
效益了。 | c*****t
发帖数: 10738 | 4 有GPS在，这些东西都注定是赔钱货，关键是哪个政府陪的起，这上面当然是TG第一。 | g***i
发帖数: 795 | 5 欧盟这也算搬起石头砸了自己的脚，哈哈哈。以前把土工忽悠进去出钱然后一脚踹开，
还觉得自己挺聪明。现在被人大耳瓜子扇的生生的，哈哈哈，好开心
【在 t*******h 的大作中提到】
: http://www.spacenews.com/civil/110120-europe-china-impasse.html
: Thu, 20 January, 2011
: Europe, China at Impasse on Satellite Navigation
: By Peter B. de Selding
: ShareThis
: China's Long March 3C rocket launched the third Bediou-Compass
: navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
: photo
: China's Long March 3C rocket launched the third Bediou-Compass
: navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
| f****l
发帖数: 8042 | 6 TG现在就是把欧洲拖着，这玩意儿，谁上市早，谁就占先，本来想从GPS哪儿分一杯羹
就很难了，把欧洲的拖死了，TG的北斗就更有希望了。 | d**s
发帖数: 1255 | 7 cong!
【在 t*******h 的大作中提到】
: http://www.spacenews.com/civil/110120-europe-china-impasse.html
: Thu, 20 January, 2011
: Europe, China at Impasse on Satellite Navigation
: By Peter B. de Selding
: ShareThis
: China's Long March 3C rocket launched the third Bediou-Compass
: navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
: photo
: China's Long March 3C rocket launched the third Bediou-Compass
: navigation satellite from Xichang Satellite Launch Center. Credit: Xinhua
| s*****r
发帖数: 11545 | 8 欧洲好象在说, 我们对美帝都作了让步, 土共你也应该对欧洲议会婊子作点让步. 问题
是欧洲让步于GPS的军事用途, 而这军事用途又与北约息息相关. 难道土共也对欧洲让
步以共同发展军事合作? 难道土共也可以将GPS用于军事目的而不受制于人?
【在 c*****t 的大作中提到】
: 有GPS在，这些东西都注定是赔钱货，关键是哪个政府陪的起，这上面当然是TG第一。
| t*******h
发帖数: 2882 | 9 这篇文章里说使用重叠的频率不会影响一般用户的使用有点耍赖的意思，因为频率在国
际组织的注册是先用先得的原则。不然大家都可以选择米帝军码占用的最佳频率。 |
|
