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KCI등재 학술저널

GPS와 관성센서의 융합에 의한 구조물 동적거동 측정

Measurement of Structural Dynamic Behavior Using the Sensor Fusion of GPS and IMU

  • 38

An experimental study was conducted to demonstrate the validity of a sensor fusion technique combining GPS and IMU (Inertial Measurement Unit) to measure the dynamic displacement of structures. In the GPS measurement, a PPP (Precise Point Positioning) mode utilizing only a set of GPS was employed since a DGPS measurement is not available in such a remote position where offshore structures are commonly installed. Through the sensor fusion technique, we could compensate the shortcomings of each of GPS and IMU. A Kalman Filter was used for the sensor fusion to combine the signals from GPS and IMU, and its results were compared with the results of a laser displacement meter which provided a ground truth data. Finally, it was shown that the present sensor fusion technique gave a fairly accurate result even in the situation that the single use of either GPS or IMU cannot provide a right result at all.

1. 서 론

2. 센서융합기법의 수립

3. 성능실험

4. 결과 및 분석

5. 결 론

감사의 글

References