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Can the sensitivity of MEMS gyroscope be applied to north seeking?

Can the sensitivity of MEMS gyroscope be applied to north seeking?

April 23, 2025

Tactical grade MEMS gyroscopes (zero bias <1 °/hr) can achieve ± 0.5 °~1 ° north-seeking accuracy in static environments through multi position calibration (such as the 24-point method) and Kalman filtering, making them suitable for low-cost vehicle mounted/portable devices. However, in dynamic environments, the accuracy drops sharply, and long-term work requires auxiliary sensors (such as GNSS timing and Earth angular velocity synchronization).

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