DOI QR코드

DOI QR Code

시뮬레이션을 이용한 누적 RSSI 신호 기반의 항법 기술 성능 분석

Analysis of Localization Technology Performance Based on Accumulated RSSI Signal Using Simulation

  • 신범주 ;
  • 이택진
  • Beomju Shin (Division of Software, Hallym University) ;
  • Taikjin Lee (Augmented Safety System with Intelligence Sensing & Tracking, Korea Institute of Science and Technology)
  • 투고 : 2024.06.14
  • 심사 : 2024.07.26
  • 발행 : 2024.09.15

초록

Reliable and precise indoor localization is crucial for personal navigation, emergency rescue, and monitoring workers indoors. To use this technology in different applications, it is important to make it less dependent on infrastructure and to keep the error as small as possible. Fingerprinting stands out as a popular choice for indoor positioning because it leverages existing infrastructure and works with just a smartphone. However, its accuracy heavily relies on the quality of that infrastructure. For instance, having too few access points or beacons can greatly reduce its effectiveness. To reduce dependence on RF infrastructure, we have developed surface correlation (SC) using accumulated Received Signal Strength Indicator (RSSI) signals This approach constructs a user mask for radio map comparisons using an accumulated RSSI vector and the trajectory of the user, which is estimated through PDR. The location with the highest correlation is considered as the user's position after comparison. Through a simulation, the performance of short RSSI vector-based technology and SC is analyzed, and future directions for the development of SC are discussed.

키워드

참고문헌

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