September 2001 | NTIA Technical Report TR-01-389
Abstract: This addendum to NTIA Report 01-384 describes laboratory measurements on two additional Global Positioning System receivers to quantify the effects of ultrawideband interference on those receivers. The laboratory measurements were performed by inserting increased levels of UWB interference until an operating GPS receiver lost lock. At each interference level leading up to loss of lock, reacquisition time was determined. When possible, fundamental GPS measurements (e.g., pseudorange and carrier phase), status flags (e.g., potential cycle slips), and signal-to-noise ratio were also sampled.
Keywords: global positioning system (GPS); noise; Ultrawideband (UWB); Impulse Radio; interference measurement; radio frequency interference (RFI); amplitude probability distribution
For technical information concerning this report, contact:
Michael G. Cotton
Institute for Telecommunication Sciences
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