IMU Integration
Survey-grade high-speed GPS/GNSS is the most accurate way to measure velocity - as long as view to the sky is clear.
Challenges occur when buildings or tall trees obstruct the testing ground, causing GNSS signal interruptions and resulting in data dropouts and spikes, which compromise the cleanliness of the velocity signal.
To maintain high GNSS precision even with limited sky visibility, we integrate data from an Inertial Measurement Unit (IMU) with the VBOX data logger.
By blending GNSS with IMU data, which includes three gyros and three accelerometers, we produce smoother and more reliable data. This integration effectively handles GPS dropouts, ensuring consistent accuracy. The IMU integration allows VBOX to achieve high precision even in compromised external conditions, making the data more reliable and easier to interpret.