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The accelerometer is the one of the core inertial measurement components in inertial navigation system. The velocity and position of transporting species are obtained by carrying on one and two integrals respectively to the accelerometers outputs. So, the precision of navigation system is obviously affected by the static error of accelerometer. In this paper, the static mathematics model of accelerometer...
The navigation accuracy is seriously affected by installation errors of accelerometers in Gyroscope Free Strap-down Inertial Navigation System(GFSINS). So, the installation errors have to be calibrated before used and the output errors of accelerometers must be compensated while GFSINS is on working. In this paper, consider a 12-accelerometer GFSINS constituted with four three-axis accelerometers,...
When the plant of an integrated SINS/GPS navigation system dynamics or noise processes are not exactly known, or the noise processes are not zero mean white noise, divergence problems will occur. In this paper, a based on intelligent information fusion technology -fuzzy neural network adaptive system is used to adjust the exponential weighting of a weighted Kalman filtering and prevent it from divergence...
Conventional strapdown inertial navigation system is usually measured angular velocity with gyroscope and acceleration measuring a force signal with accelerometer for the initial alignment. GFSINS uses accelerometers that use the output from the ratio of force to solve the angular velocity instead of gyroscopes for the initial alignment. Based on a nine-accelerometer configuration and use of logarithmic...
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