SINS (Strapdown Inertial Navigation System)

A Strapdown Inertial Navigation System (SINS) is a technology that determines an object’s position and movement by measuring its acceleration and rotation using small sensors called accelerometers and gyroscopes. These sensors are fixed directly to the device, hence "strapdown." The system continuously calculates where it is and how it’s moving without relying on external signals like GPS, making it useful in environments where signals are unavailable. It processes data over time to track the device’s trajectory, providing precise navigation information crucial for aircraft, submarines, and autonomous vehicles.