| 摘要 |
PROBLEM TO BE SOLVED: To provide an inertial sensing system in which the low update rate in a cold atom inertial sensor and the bias and scale factor drift in a micro-electrical-mechanical system (MEMS) inertial sensor are compensated by each other.SOLUTION: An inertial sensing system 100 comprises a first multi-axis atomic inertial sensor 102, a second multi-axis atomic inertial sensor 104, and an optical multiplexer 114 optically coupled to the first and second multi-axis atomic inertial sensors. The optical multiplexer 114 is configured to sequentially direct light along different axes of the first and second multi-axis atomic inertial sensors 102, 104. A plurality of MEMS inertial sensors 106, 108 are in operative communication with the first and second multi-axis atomic inertial sensors 102, 104. Output signals from the first and second multi-axis atomic inertial sensors 102, 104 correct errors produced by the MEMS inertial sensors 106, 108 by sequentially updating output signals from the MEMS inertial sensors 106, 108. |
