원문정보
A Study on Development based on ToA Method of Location Determination System in Indoor
초록
영어
Location-Based Service(LBS) is a service that provides a variety of convenience in life using location information that can be obtained by mobile communication network or satellite signal. In order to provide LBS precisely and efficiently, we have to need technologies such as location determination technology, platform technology and server technology first. In this study, we studied on how we can reduce the error on location determination of objects such people and things. Fingerprint location determination method was applied to this study because it can be used at current wireless communication infrastructure and less influenced by a variety of noisy environment than other location determination methods. We used the time of arrival(ToA) method in fingerprint location determination method. In order to confirm the performance of suggested method, we developed location determination test program with LAbVIEW 2010 and performed the test. According to indoor test results, the suggested method reduced the distance error by 24%, 34% and 19% respectively at indoor environment compared with deterministic kWNN and Rice Gaussian fingerprint methods.
목차
1. 서론
2. 이론적 배경
2.1 ToA(Time of Arrival)
2.2 Fingerprint
2.3 국내외 연구 사례들
3. ToA 기반 실내 위치측위 알고리즘
3.1 Log-scale 변환 확률론적 알고리즘
3.2 위치측위 프로세스
4. 시스템 구현 및 결과 분석
4.1 시스템 구현 및 실험 환경
4.2 실험 결과 분석
5. 결론 및 향후 연구과제
6. 참고문헌