by Barry Belotti | Jun 30, 2022 | Blog
A vehicle’s design and its GNSS/INS implementation can have an influence on reception and navigation performance — especially in high-dynamic motion scenarios. Previously, we looked at the simulation implications for vehicles in flight as well as vessels at sea. In...
by Barry Belotti | Apr 28, 2022 | Blog
Getting accurate, repeatable results from GNSS simulations depends on faithfully reproducing the simulated vehicle’s motion. Last month we explored the variables impacting aircraft simulations. This month, we will look at how GPS reception depends on the design and...
by Barry Belotti | Mar 7, 2022 | Blog
Whether you are testing the integration of a navigation device or characterizing its performance envelope in the lab, the quality of your results depends on the fidelity of your GNSS simulations. Even the smallest inconsistency can send the simulated flight on a wrong...
by Barry Belotti | Dec 30, 2021 | Blog
Warming oceans are making the Arctic more navigable. This creates opportunities for shipping, fishing, and other industries. A warmer Arctic also becomes more strategically competitive. Over the past two years, every American military service has updated its Arctic...
by Barry Belotti | Nov 18, 2021 | Blog
GPS military codes ensure that America’s armed forces receive the most accurate and precise positioning information anywhere in the world at any time. Delivering that performance consistently and reliably requires extensive testing during receiver development,...
by Barry Belotti | Sep 30, 2021 | Blog
In the physical world, GPS signals and radio frequency (RF) interference are naturally coherent. In simulations, every effect at every instance of simulated time must be calculated separately. Synchronizing and combining these calculations to generate coherent GPS and...
by Barry Belotti | Aug 5, 2021 | Blog
Why Simulation Repeatability Matters Given the same initial conditions, GNSS/INS simulations of the same mission scenario should produce the same result every time. Different results indicate a problem with the receiver. Or do they? Poor simulation repeatability can...
by Barry Belotti | Apr 26, 2021 | Blog
Global navigation satellite systems (GNSS) and inertial navigation systems (INS) are naturally complementing positioning and navigation technologies, because each one compensates for the other’s deficiencies. Therefore, as demand for reliable positioning and...
by Barry Belotti | Feb 11, 2021 | Blog
A recent article in IEEE Spectrum revealed and detailed a very alarming threat to airline safety posed by GPS tests conducted by the U.S. military. According to the article, military tests that jam GPS signals to test military defenses against such jamming are an...
