senheiser
SENIOR MEMBER
- Joined
- Jun 26, 2012
- Messages
- 4,037
- Reaction score
- -1
- Country
- Location
Satellite navigation: U.S. intelligence agencies to sabotage Russians GPS
By Konrad Lischka
DPA
Galileo satellite (simulation): The signals of navigation satellites will be diverted into the atmosphere
The Russian Space Agency Roscosmos plans to build six ground stations in the U.S., correct the errors of navigation satellites. U.S. intelligence agencies are opposed to a permit, allegedly because of the threat of espionage.
U.S. intelligence agencies and the U.S. Department of Defense brace themselves against the fact that Russia's space agency may build six correction systems for the navigation system Glonass on U.S. soil. The U.S. government must now decide on a request by Russia from May 2012. According to " New York Times ", the CIA and other U.S. intelligence agencies put across, other ministries appear to comply with the wishes of Russia. Because of the controversy in the U.S. government's decision has now been pushed out again.
The U.S. intelligence justify the resistance as:
Ground stations to correct turbulence
It is undisputed, however, that more ground stations would improve the precision of the Russian Glonass system - but they are there eventually.Navigation satellite systems without correction mechanisms are not particularly accurate. This is mainly due to the interference of the signals in the atmosphere. A GPS or GLONASS receiver determines its position by receiving signals from at least three satellites and together account.But these signals are distracted by turmoil in the outer atmosphere, from hour to hour varies.
The delayed signals change as calculated by the receiver on the ground position. Reference stations on the ground, as they Roskosmos wants to build in North America, received at an exact location of the satellite signals are rooted. Because the position is known, can the deviation of the received data accurately determined. The measurement data of all ground stations being centralized, one from Calculated correction signal can be transmitted via satellite or online at receiver.
Private providers operate worldwide reference stations
Reference stations, such as Russia, they now want to build in the U.S., are not uncommon. The United States government for their GPS correction system WAAS (which is also used in aviation), for example, in Canada and Mexico ground stations in operation. Russia operates in his own country and in Brazil have long GLONASS reference stations. And private providers have for years worldwide reference stations for the U.S. GPS and Glonass in operation.
The tractor-builder John Deere StarFire correction signal for his 40 ground stations, for example, around the world. Companies can determine exactly how OmniSTAR correction signals, Range Point and subscribe to Starfire and so to a few centimeters deviation position - that is, for example, for robots in agriculture is necessary to restore the rows of plants.
For the U.S. blockade against GLONASS base stations might there be a third reason. The Russian system is, despite some setbacks for years of reliable and better, many professional systems use GLONASS data already clarifying the GPS positioning. And in many modern smartphones (eg, iPhone 5, Samsung Galaxy S4) are built Glonass receivers. The system should be more specific without charge now by additional base stations, it could make the U.S. system GPS serious competition.
Perhaps the blockade of U.S. intelligence also serves economic interests.Republican U.S. Rep. Mike Rogers, chairman of a safety committee, puts it: "It is in many ways an advantage for the United States of America that the world relies on GPS."
By Konrad Lischka
DPA
Galileo satellite (simulation): The signals of navigation satellites will be diverted into the atmosphere
The Russian Space Agency Roscosmos plans to build six ground stations in the U.S., correct the errors of navigation satellites. U.S. intelligence agencies are opposed to a permit, allegedly because of the threat of espionage.
U.S. intelligence agencies and the U.S. Department of Defense brace themselves against the fact that Russia's space agency may build six correction systems for the navigation system Glonass on U.S. soil. The U.S. government must now decide on a request by Russia from May 2012. According to " New York Times ", the CIA and other U.S. intelligence agencies put across, other ministries appear to comply with the wishes of Russia. Because of the controversy in the U.S. government's decision has now been pushed out again.
The U.S. intelligence justify the resistance as:
- The ground stations would improve the precision of the Russian navigation satellite system, and thus the accuracy of Russian weapons.
- The ground stations could be used for espionage.
Ground stations to correct turbulence
It is undisputed, however, that more ground stations would improve the precision of the Russian Glonass system - but they are there eventually.Navigation satellite systems without correction mechanisms are not particularly accurate. This is mainly due to the interference of the signals in the atmosphere. A GPS or GLONASS receiver determines its position by receiving signals from at least three satellites and together account.But these signals are distracted by turmoil in the outer atmosphere, from hour to hour varies.
The delayed signals change as calculated by the receiver on the ground position. Reference stations on the ground, as they Roskosmos wants to build in North America, received at an exact location of the satellite signals are rooted. Because the position is known, can the deviation of the received data accurately determined. The measurement data of all ground stations being centralized, one from Calculated correction signal can be transmitted via satellite or online at receiver.
Private providers operate worldwide reference stations
Reference stations, such as Russia, they now want to build in the U.S., are not uncommon. The United States government for their GPS correction system WAAS (which is also used in aviation), for example, in Canada and Mexico ground stations in operation. Russia operates in his own country and in Brazil have long GLONASS reference stations. And private providers have for years worldwide reference stations for the U.S. GPS and Glonass in operation.
The tractor-builder John Deere StarFire correction signal for his 40 ground stations, for example, around the world. Companies can determine exactly how OmniSTAR correction signals, Range Point and subscribe to Starfire and so to a few centimeters deviation position - that is, for example, for robots in agriculture is necessary to restore the rows of plants.
For the U.S. blockade against GLONASS base stations might there be a third reason. The Russian system is, despite some setbacks for years of reliable and better, many professional systems use GLONASS data already clarifying the GPS positioning. And in many modern smartphones (eg, iPhone 5, Samsung Galaxy S4) are built Glonass receivers. The system should be more specific without charge now by additional base stations, it could make the U.S. system GPS serious competition.
Perhaps the blockade of U.S. intelligence also serves economic interests.Republican U.S. Rep. Mike Rogers, chairman of a safety committee, puts it: "It is in many ways an advantage for the United States of America that the world relies on GPS."
