However, in actual commercial or military application environments, the variation of temperature within the device contributes to an uneven RLG bias error and degrades the SINS performance. It has many advantages, such as digital output, a stable scale factor, temperature and vibration reliability, and is also lightweight. The ring laser gyro (RLG) has become the current mainstream rotation rate sensor in the high-precision strap-down inertial navigation system (SINS), which is widely used in military and commercial applications.
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