enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Selective availability anti-spoofing module - Wikipedia

    en.wikipedia.org/wiki/Selective_availability...

    A Selective Availability Anti-spoofing Module (SAASM) is used by military Global Positioning System receivers to allow decryption of precision GPS observations, while the accuracy of civilian GPS receivers may be reduced by the United States military through Selective Availability (SA) and anti-spoofing (AS). [1]

  3. GPS signals - Wikipedia

    en.wikipedia.org/wiki/GPS_signals

    There are four GPS signal specifications designed for civilian use. In order of date of introduction, these are: L1 C/A, L2C, L5 and L1C. [1] L1 C/A is also called the legacy signal and is broadcast by all currently operational satellites. L2C, L5 and L1C are modernized signals and are only broadcast by newer satellites (or not yet at all).

  4. AN/PSN-13 Defense Advanced GPS Receiver - Wikipedia

    en.wikipedia.org/wiki/AN/PSN-13_Defense_Advanced...

    The AN/PSN-13 Defense Advanced GPS Receiver (DAGR; colloquially, "dagger") is a handheld GPS receiver used by the United States Department of Defense and select foreign military services. It is a military-grade, dual-frequency receiver, and has the security hardware necessary to decode the encrypted P(Y)-code GPS signals .

  5. GPS Block III - Wikipedia

    en.wikipedia.org/wiki/GPS_Block_III

    A major component of the modernization process, a new military signal called M-code was designed to further improve the anti-jamming and secure access of the military GPS signals. The M-code is transmitted in the same L1 and L2 frequencies already in use by the previous military code, the P(Y) code.

  6. Inertial navigation system - Wikipedia

    en.wikipedia.org/wiki/Inertial_navigation_system

    Furthermore, INS can be used as a short-term fallback while GPS signals are unavailable, for example when a vehicle passes through a tunnel. In 2011, GPS jamming at the civilian level became a governmental concern. [11] The relative ease in ability to jam these systems has motivated the military to reduce navigation dependence on GPS technology ...

  7. 'Transition GPS': Helping Military Vets Get Civilian Jobs - AOL

    www.aol.com/news/2012-07-25-transition-gps...

    By Pauline Jelinek WASHINGTON (AP) -- U.S. combat troops patrol dusty pathways in Afghanistan, look for hidden roadside bombs, load and fire mortar shells at insurgents' positions. So when they ...

  8. GNSS applications - Wikipedia

    en.wikipedia.org/wiki/GNSS_applications

    A GPS receiver in civilian automobile use. Air navigation systems usually have a moving map display and are often connected to the autopilot for en-route navigation. Cockpit-mounted GNSS receivers and glass cockpits are appearing in general aviation aircraft of all sizes, using technologies such as SBAS or DGPS to increase accuracy.

  9. Israel's 'GPS spoofing' tricks missiles, but also commercial ...

    www.aol.com/news/israels-gps-spoofing-tricks...

    Israel under fire for 'GPS spoofing' affecting airplane navigation systems in Lebanon, Syria, Jordan, Egypt, Turkey and Cyprus.