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Inertial Navigation Systems (INS) and Inertial Measurement Units (IMUs) provide precise, self-contained, real-time tracking of position, velocity, and orientation by fusing data from 3-axis gyroscopes, accelerometers, and magnetometers . They are crucial for navigation in GPS-denied environments, commonly used in UAVs, robotics, and defense, and can be customized with high-precision MEMS, FOG, or quartz sensors for specific SWaP-C requirements.

Core Components of Custom IMUs

Custom IMUs are built based on required accuracy,,, size, weight, and power (SWaP) constraints, utilizing several sensor types:

Accelerometers: Measure specific force and acceleration along three perpendicular axes.
Gyroscopes: Detect changes in angular velocity (pitch, roll, and yaw).
Magnetometers: Measure magnetic fields to improve heading/yaw accuracy.
Sensor Fusion Algorithms: Process high-rate data to reduce drift and provide stable output.

Inertial Navigation System (INS) Components

An INS uses an IMU to compute position over time by integrating data. Custom systems often include:

GNSS Receiver: Integrated with the IMU to correct for long-term drift, essential when GNSS is temporarily unavailable.
Processor: Runs algorithms at high rates (e.g., 200Hz-400Hz) for real-time positioning.
Interfaces: Configurable outputs (CAN, RS232, Ethernet) to connect with other vehicle systems (ECUs).

Key Applications

Autonomous Vehicles & Robotics: Used for stabilization and navigation.
Aerospace & Defense: Precision guidance for missiles, drones, and helicopters.
Industrial Automation: Robotics and motion control.
Maritime: Underwater unmanned vehicles (UUV) navigation.

Customization Options

Sensors: MEMS for cost/size, FOG (Fiber Optic Gyro) for high precision.
Ruggedization: CNC aluminum enclosures with sealed connectors for harsh environments (e.g., Deutsch ASL).
Firmware: Tailored for specific applications, such as direct integration with Motor Controllers (M1 ECU) or custom navigation algorithms.

Key manufacturers in this space include Safran , NovAtel , Exail , and Advanced Navigation .

Inertial Measurement Units (IMU) for Drones & Unmanned Systems
Feb 3, 2026 — Inertial Measurement Units (IMU) for drones and unmanned systems provide the high-rate inertial data required to stabilize UAVs, U...

Unmanned Systems Technology
GNSS Inertial Navigation Systems - NovAtel

NovAtel
Inertial Navigation System -OB.OMG.INS - MilSpecWiring.com
This device is a multifunctional sensor that merges two main components: * An Inertial Measurement Unit (IMU) that has a 3 axis ac...

MilSpecWiring.com

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IMU & AHRS | Inertial Navigation Systems

Advanced Navigation

https://www.advancednavigation.com › imu-ahrs

Advanced Navigation

https://www.advancednavigation.com › imu-ahrs

Advanced Navigation is a leading manufacturer of high-accuracy MEMS and FOG inertial measurement units ( IMU ) and attitude and heading reference systems (AHRS). Read more

Missing: ~~custom~~ ‎| Show results with: custom

Videos

Primary Function of the IMU (Inertial Measurement Unit)

Unmanned Systems Technology GuideNav Official | Inertial Navigation Solutions

Oct 17, 2024

2:59

An IMU measures specific force, angular velocity, and orientation using accelerometers and gyroscopes for accurate navigation & motion control.

An Overview of Inertial Measurement Units (IMUs)

Unmanned Systems Technology GuideNav Official | Inertial Navigation Solutions

Oct 16, 2024

3:21

Explains how IMUs use accelerometers, gyroscopes, and magnetometers with sensor fusion to provide data for embedded systems and apps.

Dewesoft Inertial Navigation Systems (GPS/GNSS and IMU/INS)

YouTube Dewesoft

Oct 8, 2020

3:46

DSV- GPS outputs position at 100 Hz, perfect for brake tests. Connect a brake switch directly, no extra hardware needed.

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Inertial Measurement Units (IMU)

Inertial Labs

https://inertiallabs.com › IMU

Inertial Labs

https://inertiallabs.com › IMU

Our extensive range of IMUs offers a cost-effective solution utilising three high-performance accelerometers. Browse, select and configure available models.

Honeywell's HGuide IMUs and Inertial Navigation Systems

Honeywell Aerospace

https://aerospace.honeywell.com › about-us › blogs › ho...

Honeywell Aerospace

https://aerospace.honeywell.com › about-us › blogs › ho...

An IMU uses gyroscopes, accelerometers and electronics to provide precise rotation and acceleration data to an industrial machine's control system . IMUs enable ... Read more

Our Technology Overview and Applications - IMU

Inertial Sense

https://inertialsense.com › our-technology-overview-an...

Inertial Sense

https://inertialsense.com › our-technology-overview-an...

Mar 27, 2021 — The core of our technology is an inertial measurement unit, or an IMU , which consists of three access gyros and accelerometers. Read more

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What is an Inertial Navigation System?

Dewesoft

https://dewesoft.com › blog › what-is-inertial-navigation-...

Dewesoft

https://dewesoft.com › blog › what-is-inertial-navigation-...

Nov 23, 2023 — In this article we will learn about IMU (inertial measurement units) and INS (inertial navigation systems), describing them in enough detail ... Read more

Why do we need inertial...

What's the difference between...

Key INS technologies

GPS? IMU? INS? What on Earth even is that?

Obsidian Motorsport

https://obsidianeng.com › 2020/12/23 › gps-imu-ins-w...

Obsidian Motorsport

https://obsidianeng.com › 2020/12/23 › gps-imu-ins-w...

Dec 23, 2020 — An Inertial Navigation System (INS), combines these two sensors and uses the global accuracy of a GNSS system and the speed of an IMU! These ... Read more

INS - inertial navigation systems for demanding applications

SBG Systems

https://www.sbg-systems.com › ins

SBG Systems

https://www.sbg-systems.com › ins

Discover SBG Systems' INS solutions for precise navigation and positioning , combining GNSS and IMU technology for UAVs, marine, automotive, and defense ...

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A Complete Guide to Inertial Measurement Unit (IMU)

JOUAV

https://www.jouav.com › blog › inertial-measurement-u...

JOUAV

https://www.jouav.com › blog › inertial-measurement-u...

Apr 17, 2025 — And there's more—IMUs provide data for fancy systems like Attitude and Heading Reference Systems (AHRS) and Inertial Navigation Systems (INS). Read more

IMU, AHRS, and INS | PX4 Guide (main)

PX4 Autopilot

https://docs.px4.io › sensor › inertial_navigation_systems

PX4 Autopilot

https://docs.px4.io › sensor › inertial_navigation_systems

Inertial Navigation System (INS) . An INS is a navigation device that uses accelerometers, gyroscopes, possibly magnetometers, and a computer to calculate the ... Read more

Scholarly articles for custom inertial navigation systems and imu
… strategy for MEMS redundant- IMU exploiting custom … - ‎ De Alteriis - Cited by 22 A LiDAR and IMU integrated indoor navigation system … - ‎ Kumar - Cited by 224 Impact of on‐body imu placement on inertial navigation - ‎ Strozzi - Cited by 17