Ultra-wideband technology radio frequency interference effects to GPS and interference scenario development : first interim report

PDFResearch PaperWideband communication systemsRadio frequencyRadio frequency interferenceGlobal Positioning SystemAviationMaritime safetyUnited StatesUnited States. Dept. of TransportationRTCA (Firm). SC-159NTL-AVIATION-AVIATIONNTL-AVIATION-Aviation Safety/AirworthinessNTL-GEOGRAPHIC INFORMATION SYSTEMS-GEOGRAPHIC INFORMATION SYSTEMSUS Transportation CollectionIn October, 1999, at the request of the Department of Transportation (DoT), the RTCA undertook an effort to investigate the radio frequency interference (RFI) environment in the vicinity of the new Global Positioning System (GPS) L5 frequency (1176.45 1 12 MHz) and determine appropriate receiver susceptibility criteria and related RFI unwanted emission limits for the use with new civil signal. Aviation-related issues were acknowledged to be of primary importance, but the group was encouraged to seek significant involvement and input from non-aviation GPS uses, especially public safety applications (e.g., maritime, E-911, police, fire fighting). By June 2000 the pace had intensified on regulatory and business activities related to ultra-wideband (UWB) transmission technology. As a result the Department of Transportation requested the RTCA enlarge the study to explicitly treat UWB RFI effects and operational scenarios for the GPS L1 frequency (1575.42 1 12 MHz) as well as L5