The fingerprint technique is used as an indoor localization method. This study uses a CNN-based indoor fingerprint localization method. The estimation accuracy of CNN improves as the number of AP information (AP identifiers and received signal str...
In this study, we performed indoor location estimation using wireless LAN. The estimation method is based on the Finger Print method [1]. We measure the database (DB) and user data (UD) using wireless LAN radio waves to improve the location estima...
Today, we can know our outdoor location through global positioning system (GPS). However, it is not easy to estimate our indoor location because satellite signals are difficult to reach. Therefore, we study indoor localization using wireless local...
With the recent expansion of electromagnetic (EM) waves, undesired EM waves generated by device can cause malfunctions of other electronic equipment and communication failure. EM wave absorbers are widely used as countermeasures against these prob...
This contribution focuses on the accuracy and measurement cost of indoor Area Estimation using wireless LAN. The system estimates the area, such as a room or a shopping store, where the user is located. The user-measured AP information (UD), and t...
IEICE Proceeding Series 2020年12月2日 The Institute of Electronics, Information and Communication Engineers
In this study, we designed the electromagnetic (EM) wave absorber using a square metallic pattern array sheet. Furthermore, we confirmed that the resonant frequency and the EM wave absorption can be controlled by changing the construction paramete...
IEICE Proceeding Series 2020年12月2日 The Institute of Electronics, Information and Communication Engineers
First of all, as a research background, position estimation by GPS has become the mainstream in recent years, but it is known that position estimation accuracy deteriorates in places with poor radio wave environment such as indoors and underground...
IEICE Proceeding Series 2020年12月2日 The Institute of Electronics, Information and Communication Engineers
In this study, the measurements of near magnetic field on the opening surface of metallic enclosure are investigated. First, the authors simulated the magnetic fields of a high power equipment enclosure including a power circuit. Next, the near ma...
IEICE Proceeding Series 2020年12月2日 The Institute of Electronics, Information and Communication Engineers
Recently, location information has been emphasized with the spread of smartphones. The authors have been researching indoor location estimation with the goal of developing indoor navigation applications. In this research, we handle RSSI as time se...