From airplanes to missiles, resilient navigation systems are enabling companies around the world to reach new heights in autonomy. By utilizing a system comprised of an inertial measurement unit (IMU), a global navigation satellite system receiver, and sensor fusion software, a GPS/INS can precisely calculate position, orientation, and velocity to deliver critical navigation information in environments where GPS is not available, like canyons, mountains, dense forests, and more. Continue reading to learn how your avionics systems can still benefit from exact navigation even in GPS-denied environments.
Full Autonomous Awareness
In order for autonomous systems to travel towards their destination accurately, they need to have a constant intake of information pertaining to where they are, which way they are pointing, and how to get wherever they are going. This starts with the hardware components of the GPS/INS, which include some of the following elements:
- Gyroscopes that determine the angular position and motion of a device in reference to an inertial reference frame
- Accelerometers that measure the changes in velocity to determine acceleration
- Microprocessors that run the necessary firmware to analyze all of this data and operate the system autonomously
Navigational Accuracy without Satellites
We understand that precision counts in important defense applications, and often these products must operate without GPS assistance. Our customized navigation solutions provide applications such as weapons and launchers with the same accuracy as satellite assistance even in GPS-denied circumstances. The information from the IMU is used to compute how the system has moved through three-dimensional space and combines that information with its latitude, longitude, and altitude to successfully complete its mission.
Designed Reliability for All Elements
One of the most important factors of GPS/INS in your avionics is being able to trust it to work every time, regardless of the elements. Our navigation systems are designed to weather the conditions of their application and built to withstand temperatures ranging from freezing cold to scorching hot, so your avionics will still successfully navigate their way to the destination. Each project can be customized to your needs, whether that is a protected or rugged environment.
Functionality Fit into Microscopic Systems
All of the benefits of GPS/INS come packed into a device that can be roughly the size of a quarter. By integrating numerous micro-electromechanical systems, including the gyroscopes, accelerometers, and processors, into one convenient device, your flight systems can gain full autonomy. An attitude and heading reference system (AHRS) combines the functionality of the IMU with the ability to act on the attitude of the robotic system in relation to other fixed points of reference, and these systems working together is what gives your avionics the intelligence and awareness they need for successful navigation.
For more than 20 years, ASEI has proudly served the defense industry with proven navigational systems and we are still building towards the future. With experience in engineering, testing, and real-world applications, our team is equipped to handle the defense questions of today and tomorrow. Contact us today to learn more about our contributions to the field and how we can bring excellent service and integrity to your project.