| 摘要 |
PROBLEM TO BE SOLVED: To provide a relatively simple navigation system for evaluating a speed and a position. SOLUTION: This method includes the integration of an acceleration evaluation in each of three dimensions, in one embodiment. A GPS speed in the each dimension is subtracted from the integrated acceleration evaluation in the each dimension, in order to determine a speed noise error in the each dimension. The speed noise error is filtered in the each dimension. The filtered speed noise error is added to the integrated acceleration evaluation in the each dimension, in order to obtain a speed evaluation in the each dimension. The speed evaluation in the each dimension is integrated in order to determine an integrated speed evaluation in the each dimension. A GPS position in the each dimension is subtracted from the integrated speed evaluation in the each dimension, in order to determine the speed noise error in the each dimension. The speed noise error in the each dimension is filtered, and the filtered speed noise error in the each dimension is added to the integrated speed evaluation to obtain the position evaluation in the each dimension. COPYRIGHT: (C)2007,JPO&INPIT |
