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GNSS Simulation and Dynamic Motion at Sea

GNSS Simulation and Dynamic Motion at Sea

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...

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The Challenges of Dynamic Aircraft Motion in GNSS Simulation

The Challenges of Dynamic Aircraft Motion in GNSS Simulation

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...

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GNSS/INS Simulations of High-Latitude Operations

GNSS/INS Simulations of High-Latitude Operations

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...

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What does M-Code mean for GPS simulation?

What does M-Code mean for GPS simulation?

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,...

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What Simulation Repeatability Means for Your Program

What Simulation Repeatability Means for Your Program

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...

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Tightly Coupled GNSS-INS Simulation

Tightly Coupled GNSS-INS Simulation

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...

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Top Military Simulating Issues

Top Military Simulating Issues

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...

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Simulating Conditions on a Vessel at Sea

Simulating Conditions on a Vessel at Sea

For many applications, in addition to knowing a platform’s position it is nearly as important to know its attitude, which consists of three rotational components—roll, pitch, and yaw—and three linear ones—heave, surge, and sway. For example: for aerial photogrammetry,...

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Challenging Jamming and Spoofing

Challenging Jamming and Spoofing

Simulators assist GNSS receiver manufacturers and integrators in testing their devices against realistic scenarios that include both ideal and suboptimal conditions. It is particularly important to be able to test against simulated jamming and spoofing, which are...

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