Choosing the Right Navigation Grade Inertial Navigation Systems

Choosing the Right Navigation Grade Inertial Navigation Systems

Inertial navigation systems (INS) are crucial to the operation of UAVs, cars, military vehicles, robots, and many other machines that operate without relying on GPS/GNSS satellite signals.navigation grade ins INS provides position, velocity, and orientation data to help users keep track of the location and movement of an object, even when GPS is unavailable or jammed.

INS technology utilizes a combination of accelerometers, gyroscopes, and magnetometers to measure linear acceleration and rotational velocity.navigation grade ins These sensors are combined with advanced processing algorithms to determine an object's real-time position, velocity, and orientation. In order to determine an object's movement, the INS requires no external reference, so it is immune to jamming and spoofing. Unlike GNSS, an INS can also detect changes in its orientation (rotation around an axis) — making it the ideal sensor to use for a variety of applications and environments.

The quality of an INS can be classified according to its level of accuracy, stability, and reliability in different environmental conditions.navigation grade ins The level of accumulated errors and data processing complexity also play a role in determining the grade of an INS. For example, consumer-grade INS sensors are found in everyday gadgets such as smartphones, gaming controllers, and virtual reality headsets, providing basic motion tracking features. They are generally cost-effective and require little power consumption.

Industrial-grade INS provides higher levels of accuracy, stability, and reliability for applications that require long-term positioning support such as maritime vessels, aircraft, and submarines.navigation grade ins These INS systems have low error rates with high performance under various conditions and can be operated for extended periods of time without the accumulation of significant errors.

Survey-grade INS is an essential tool for UAVs to transform the potential of professional mapping, surveying, and infrastructure assessment tasks. With centimeter-level accuracy, survey-grade INS allows UAVs to operate in challenging environments that would otherwise limit their capabilities. The accuracy of a UAV’s INS can be used to georeference other high-tech sensors (such as LiDAR and photogrammetric cameras) on board, enabling the production of georeferenced data that is accurate to within centimeters.

When choosing the right INS for your application, consider the required level of accuracy, size, power consumption, and environmental conditions. Depending on your use case, you can select from airborne, marine, terrestrial, and spaceborne INS systems to suit your needs.

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