GPS-aided inertial navigation

GPS-aided inertial navigation combines signals from GPS satellites with data from inertial sensors (accelerometers and gyroscopes) to determine precise position and movement. GPS provides accurate location updates from satellites, but can sometimes lose signals or be less accurate in certain environments. Inertial sensors detect changes in speed, direction, and orientation, offering continuous data. By integrating both systems, the navigation remains reliable and precise: GPS refines the inertial sensor data periodically, ensuring smooth, consistent tracking even when GPS signals are temporarily unavailable. This synergy enhances overall navigation accuracy for applications like aviation, robotics, and surveying.