Assessment of LightSquared Terrestrial Broadband System Effects on GPS Receivers and GPS-dependent Applications

Details

• Creators:
  Steiner, Steve ; Bunce, Deane
• Corporate Creators:
  National Space-Based Positioning, Navigation, and Timing ; United States. Department of Transportation. Federal Aviation Administration
• Corporate Contributors:
  John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  Broadband Global Positioning Global Positioning System LightSquared
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Commerce
• Abstract:
  The Executive Steering Group (ESG) of the National Executive Committee (EXCOM) for
  
  Space-Based Positioning, Navigation, and Timing (PNT) directed the National Space-Based
  
  PNT Systems Engineering Forum (NPEF) to conduct an assessment of the effects of
  
  LightSquared’s planned deployment of a terrestrial broadband network to Global Positioning
  
  System (GPS) receivers and GPS-dependent systems and networks. The NPEF was tasked to
  
  engage with the LightSquared Working Group established at the direction of the Federal
  
  Communications Commission (FCC), and the GPS manufacturing and applications communities
  
  through relevant industry bodies (e.g., the U.S. GPS Industry Council and RTCA, Inc.). The
  
  NPEF investigated and determined effects due to interference to a selected set of GPS receivers
  
  in operationally relevant scenarios from LightSquared’s planned deployment for Ancillary
  
  Terrestrial Component (ATC) transmitters to utilize the mobile-satellite service (MSS) bands as
  
  follows: i) 1550.2 – 1555.2 MHz for Phase 0; ii) 1526.3 – 1531.3/1550.2 – 1555.2 MHz for
  
  Phase 1; and iii) 1526 – 1536/1545.2 – 1555.2 MHz for Phase 2. While the NPEF tasks were
  
  conducted in coordination with all involved entities to the extent possible, the NPEF report is
  
  considered to be an independent assessment. The contents of this Report consist of a compilation
  
  of findings from nine subtasks along with appendices that include summaries of all of the
  
  detailed test data and results collected over the last four months via a series of laboratory and
  
  field environment testing of GPS receivers. This Report is a technical summary of the work
  
  conducted during this effort and includes specific recommendations and responses to questions
  
  as requested by the EXCOM.
  
  Based on analysis described in the main body of this Report, the NPEF has developed the
  
  following recommendations for ESG consideration.
  
  
• Format:
  PDF
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:dd4db2ea827b42b5ef23304b8a1ac7b5081282387cfe73f632b4ce3e67af88b3
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9250/dot_9250_DS1.pdf
• File Type:
  [PDF - 5.91 MB ]