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논문 기본 정보

자료유형
학위논문
저자정보

유한동 (부산대학교, 부산대학교 대학원)

발행연도
2015
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부산대학교 논문은 저작권에 의해 보호받습니다.

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이 논문의 연구 히스토리 (2)

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This paper proposes a study for accurate surface localization system using EKF(Extended Kalman Filter) and GPS/INS fusion algorithm. Because the propagation in the underwater is not passed by characteristics of the medium unlike the ground, the sonar system like DVL is used instead of GPS. But since these systems are installed on the seafloor and operated, a long time is required for installation and navigation systems are limited outside of the range area. And it is difficult to estimate position in a three-dimensional considering the depth in actual marine environment. In this paper, before the development of underwater localization system, precisely estimated position system is proposed in a two-dimensional by developing surface localization system using removing noise and disturbance with EKF and relatively inexpensive GPS and INS sensor.

목차

1. 서 론······························ 1
1.1. Overview ························ 1
1.2. 연구 목적 ························ 2
1.3. Outline ························· 3
2. 확장 칼만 필터 (Extended Kalman Filter) ············· 4
2.1. 상태 추정기법 (State estimation technique) ········ 4
2.2. 확장 칼만 필터 (Extended Kalman Filter) ········· 6
3. 좌표계 변환 ··························· 12
3.1. 항법 좌표계와 동체 좌표계 ··············· 12
3.2. 좌표계 변환 ······················ 12
4. GPS와 INS ···························· 14
4.1. GPS (Global Positioning System) ············· 14
4.2. INS (Inertial Navigation System) ············· 17
5. 외란과 노이즈 제거 ························· 20
5.1. 이산 웨이블릿 변환 (Discrete Wavelet Trasform)······ 20
5.2. 가속도 잡음 제거 ····················· 22
5.3. 자세값 외란 제거 ····················· 23
6. 실험 및 결과 ··························· 26
6.1. 수면 이동체 ······················· 26
6.2. 시스템 구성 ······················· 28
6.3. 실험 환경 ························ 29
6.4. 직선 주행 위치측정 ··················· 30
6.5. 곡선 주행 위치측정 ··················· 33
7. 결 론 ····························· 36
참고문헌 ······························ 38
Abstract ······························ 41
감사의 글 ······························ 42

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