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:
  • Global Positioning System
  • Broadband
  • Global Positioning
  • Broadband
  • 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.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9250/dot_9250_DS1.pdf
• File Type:
  [PDF - 5.91 MB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha256:dd4db2ea827b42b5ef23304b8a1ac7b5081282387cfe73f632b4ce3e67af88b3