GPS-ABC radiated chamber testing overview and results : GPS-ABC Workshop VI : RTCA Washington, DC, March 30, 2017.

Details

• Creators:
  Wassaf, Hadi S. ; Gandhi, Pratik ; Dimos, George ; Mackey, Stephen
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  Global Positioning System Information Processing Interference Satellite Navigation Systems Signaling
• Resource Type:
  Presentations
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. National Transportation Library
• Abstract:
  This presentation, which was given during the GPS-ABC Workshop VI in Washington, DC on March 30, 2017 details the authors' radiated testing protocols and results. GPS receiver testing was carried out April 25-29, 2016 at the Army Research Laboratory's (ARL) Electromagnetic Vulnerability Assessment Facility (EMVAF), White Sands Missile Range (WSMR), NM. Participation included DOT’s federal partners/agencies (USCG, NASA, NOAA, USGS, and FAA) and GPS manufacturers. Air Force/GPS Directorate conducted testing week of April 18th. 80 receivers were tested representing six categories of GPS/GNSS receivers: General Aviation (non certified), General Location/Navigation, High Precision & Networks, Timing, Space Based, and Cellular. Tests performed in the anechoic chamber include: Linearity (receivers CNR estimators are operating in the linear region) - 1 MHz Bandpass Noise (Type 1); - 1 MHz In-Band Noise (Type1); - 10 MHz Long Term Evolution (LTE) (Type 2); - Intermodulation (effects of 3rd order intermodulation). The test results can be summarized as follows: 1 MHz AWGN and 10 MHz LTE interference signals ITM bounds were produced for all emulated GNSS signals; most bounding ITMs showed little sensitivity to interference signal types (AWGN (1 MHz) and LTE (10 MHz)); certified aviation receiver mask did not bound the masks of the 6 civil receiver categories; and in-band interference 1-dB degradation levels were consistent with expectation (-110 to -120 dBm/MHz for the L1C/A ITMs).
• Content Notes:
  Presentation slides from GPS Adjacent Band Compatibility Assessment Workshop VI, March 30, 2017: https://www.transportation.gov/pnt/gps-adjacent-band-compatibility-assessment-workshop-vi
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:ad5dd97c339e27089b89d42a75f1e026770bf155e3ea8d970e3893cc1de4347b
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32101/dot_32101_DS1.pdf
• File Type:
  [PDF - 2.69 MB ]