The Essential Elements of Military Grade Inertial Systems

The Essential Elements of Military Grade Inertial Systems

A key part of the navigation stack in military UAVs, military-grade inertial systems (INS) are critical to autonomous flight and ensuring safety during combat operations.military grade ins In fact, the ability to survive a range of battlefield conditions makes these sensors an essential element of any autonomous platform. To help understand the attributes that make military INS different, KVH Industries has released a new whitepaper exploring essential elements of military-grade inertial systems.

An inertial navigation system (INS) combines motion sensors (accelerometers) and rotation sensors (gyroscopes) with a computer to continuously calculate position, orientation and velocity — called dead reckoning — without relying on external references like GPS/GNSS or magnetic compasses.military grade ins This allows a vehicle to move without losing its location or orientation in space, and it can even function as a fallback when satellites and other references are lost or jammed. Inertial navigation is used by commercial and military aircraft, submarines, guided missiles, spacecraft and drones, and it’s even built into many mobile devices and video game controllers.

INSs are comprised of Inertial Measurement Units (IMU) and sensor fusion software, which combine data from the IMUs to generate a precise position estimate.military grade ins IMUs typically include angular accelerometers to measure how a vehicle is rotating in space, and linear accelerometers to measure non-gravitational accelerations. The IMUs also contain gyroscopes to provide an absolute angular reference, and there are sometimes magnetometers for magnetic field measurement. The IMUs communicate with a microcontroller, which integrates the sensor data to calculate position and velocity.

To achieve high accuracy in harsh environments, military-grade INSs are often designed to resist electronic interference and operate under vibration and dynamic conditions.military grade ins These attributes are necessary to support military missions, especially when GPS is unavailable or unreliable. INS technology supports precision, autonomy and resilience across air, land, sea and space, from guiding unmanned vehicles to supporting missile guidance systems and enabling covert operations.

The most critical attributes of military-grade INSs are reliability, low SWaP (size, weight and power) and wide dynamic range.military grade ins They must be able to reliably track changes in vehicle position, orientation and velocity over long periods of time, in a variety of environmental conditions, and they must support high-speed maneuvering, hypersonic speeds and cyber-contested environments. To meet these requirements, the best military-grade INSs use a proprietary high-performance fiber optic gyro (FOG) technology to deliver exceptional performance. Learn more about the essential elements of military-grade INS in our new whitepaper, available for download now.

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