NAVSYS

Displaying 1-7 of 7 results

  • White Papers // Sep 2012

    Broadband GPS Data Capture for Signal and Interference Analysis

    There is growing concern regarding the ability of GPS receivers to operate in the presence of in-band or near band interference. In-band interference can occur deliberately from GPS jammers or naturally from spurious harmonics from nearby electronics that generate signal products that land in the GPS signal band. To support...

    Provided By NAVSYS

  • White Papers // Sep 2011

    Dynamic Reconfiguration in a GNSS Software Defined Radio for Multi-Constellation Operation

    Recent advances in the US GPS constellation have resulted in additional signals being made available for both military and civil applications. The modernized GPS signal structure now includes signals broadcast on three frequencies with both the legacy GPS modulation codes, additional civilian codes, and also additional military codes on L1...

    Provided By NAVSYS

  • White Papers // Sep 2011

    GPS M'-Code and P-Code Signal Simulation Using an Open Source Radio Platform

    Current generation military simulators are expensive, increasing costs for GPS test and evaluation for military GPS user equipment developers. Inexpensive commercial GPS simulators are available that use signal simulation, record and playback techniques to test receivers under representative environment, but these commercial record and playback GPS simulators do not have...

    Provided By NAVSYS

  • White Papers // Sep 2011

    SatGen GNSS Signal Simulation Software

    Embedded GPS receivers have become commonplace with the proliferation of GPS navigation systems into all but the least expensive vehicle and cell phone lines. As more manufacturers embed low-cost GPS receivers in to their products, the need for low-cost GPS signal simulators have also grown. Controlled virtual testing is vital...

    Provided By NAVSYS

  • White Papers // Jun 2011

    GPS Signal Simulation Using Open Source GPS Receiver Platform

    Embedded GPS receivers have become commonplace with the proliferation of GPS navigation systems into all but the least expensive vehicle and cell phone lines. As more manufacturers embed low-cost GPS receivers into their products, the need for low-cost GPS signal simulators has also grown. Controlled virtual testing is vital in...

    Provided By NAVSYS

  • White Papers // Jun 2011

    GPS Distributed Aperture Positioning (GDAP)

    The GPS signal is subject to a variety of potential degradations, such as path loss (e.g., foliated or indoor environments), multipath (e.g., urban canyon or in building), and interference (intentional or unintentional). There are many applications, both commercial and military, where a group of GPS users may operate together in...

    Provided By NAVSYS

  • White Papers // Sep 2010

    PPS Positioning in Weak Signal GPS Environments Using a TIDGET Sensor

    This paper describes a GPS tracking solution that collects GPS broadband snapshots using NAVSYS' patented TIDGET ("Tracking widget") sensor technology and post processes these snapshots to create a Precise Positioning System (PPS) solution using a SAASM receiver. This approach has the advantages of reducing the size, weight, cost and power...

    Provided By NAVSYS

  • White Papers // Sep 2012

    Broadband GPS Data Capture for Signal and Interference Analysis

    There is growing concern regarding the ability of GPS receivers to operate in the presence of in-band or near band interference. In-band interference can occur deliberately from GPS jammers or naturally from spurious harmonics from nearby electronics that generate signal products that land in the GPS signal band. To support...

    Provided By NAVSYS

  • White Papers // Sep 2010

    PPS Positioning in Weak Signal GPS Environments Using a TIDGET Sensor

    This paper describes a GPS tracking solution that collects GPS broadband snapshots using NAVSYS' patented TIDGET ("Tracking widget") sensor technology and post processes these snapshots to create a Precise Positioning System (PPS) solution using a SAASM receiver. This approach has the advantages of reducing the size, weight, cost and power...

    Provided By NAVSYS

  • White Papers // Sep 2011

    Dynamic Reconfiguration in a GNSS Software Defined Radio for Multi-Constellation Operation

    Recent advances in the US GPS constellation have resulted in additional signals being made available for both military and civil applications. The modernized GPS signal structure now includes signals broadcast on three frequencies with both the legacy GPS modulation codes, additional civilian codes, and also additional military codes on L1...

    Provided By NAVSYS

  • White Papers // Sep 2011

    GPS M'-Code and P-Code Signal Simulation Using an Open Source Radio Platform

    Current generation military simulators are expensive, increasing costs for GPS test and evaluation for military GPS user equipment developers. Inexpensive commercial GPS simulators are available that use signal simulation, record and playback techniques to test receivers under representative environment, but these commercial record and playback GPS simulators do not have...

    Provided By NAVSYS

  • White Papers // Sep 2011

    SatGen GNSS Signal Simulation Software

    Embedded GPS receivers have become commonplace with the proliferation of GPS navigation systems into all but the least expensive vehicle and cell phone lines. As more manufacturers embed low-cost GPS receivers in to their products, the need for low-cost GPS signal simulators have also grown. Controlled virtual testing is vital...

    Provided By NAVSYS

  • White Papers // Jun 2011

    GPS Signal Simulation Using Open Source GPS Receiver Platform

    Embedded GPS receivers have become commonplace with the proliferation of GPS navigation systems into all but the least expensive vehicle and cell phone lines. As more manufacturers embed low-cost GPS receivers into their products, the need for low-cost GPS signal simulators has also grown. Controlled virtual testing is vital in...

    Provided By NAVSYS

  • White Papers // Jun 2011

    GPS Distributed Aperture Positioning (GDAP)

    The GPS signal is subject to a variety of potential degradations, such as path loss (e.g., foliated or indoor environments), multipath (e.g., urban canyon or in building), and interference (intentional or unintentional). There are many applications, both commercial and military, where a group of GPS users may operate together in...

    Provided By NAVSYS