作者: Hong-Shik Kim , Jong-Suk Choi
DOI: 10.1109/ICCAS.2008.4694553
关键词:
摘要: Several kinds of indoor localization systems have been developed for estimating objects position lately. They are classified according to the environment, purpose application, media type and so on. In this paper, we propose an improved beacon system, having ultrasonic type, which can be used localization; Moreover it estimate direction a mobile object by using digital compass. However is very hard system sensors achieve much highly precise since sensor sensitive noises external shocks. order overcome problem, adopt bandpass-filter protect from another frequency generated noise addition, multi-modulation - two with different frequencies improves sampling rate system. And present application Unscented Kalman Filter improve performance our