A: Receiver Autonomous Integrity Monitoring (RAIM) and Advanced RAIM (ARAIM; known more generally as Solution Separation RAIM, or SS-RAIM) were originally designed to…
By Sam Pullen
Q: What do we know about recent observations of GNSS interference and spoofing in Eastern Europe? What lessons can we learn regarding civil…
By Sam Pullen
SAM PULLEN STANFORD UNIVERSITY, FRANCESCO RISPOLI, ALESSIA VENNARINI, ARIANNA PERSIA, RADIOLABS , ALESSANDRO NERI, ROMA TRE UNIVERSITY AND RADIOLABS, ROBERTO CAPUA SOGEI A: Many augmentations…
By Sam Pullen
Cryptographic techniques can optimize the trade-off between authentication integrity (minimizing the probability of authenticating a modified message), ease of modification of existing signals…
By Sam Pullen
The value of the GPS SPS PS goes far beyond the specific parameters that it contains. It has a great deal of information…
By Sam Pullen
Research has focused on methods to analytically determine bounding probability distributions and parameters and identify the conditions under which such bounds are guaranteed…
By Sam Pullen
In the years since civil and commercial use of GPS and GNSS became common in the mid-1990s, a variety of software tools have…
By Sam Pullen