Fig. 5: Performance characterization of the MEMS inertial sensors in a gyrocompass.
From: Removal of the rate table: MEMS gyrocompass with virtual maytagging
a Bias repeatability of the HDRG without VM at room temperature. Seven tests of bias are conducted to evaluate the bias repeatability of the HDRG, and the sampling time is 1 s. b Bias repeatability of the HDRG with VM at room temperature. c Thermal bias repeatability of the HDRG without VM. The temperature range is from −20 °C to 30 °C. The test is conducted three times with a heating rate of 1 °C/min and a sampling time of 100 s. d Thermal bias repeatability of the HDRG with VM. e Allan deviation of the HDRG at room temperature. The calculated integration time reaches 10,000 s, and the original data are biased and continuously tested for 24 h with a sampling time of 1 s. f Allan deviation of the MEMS accelerometers along the x-axis and y-axis with a sampling time of 1 s at room temperature
