한국컴퓨터정보학회논문지 (Journal of the Korea Society of Computer and Information)

  • 제22권1호
  • /
  • Pages.71-76
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  • 2017
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  • 1598-849X(pISSN)
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  • 2383-9945(eISSN)
한국컴퓨터정보학회 (Korean Society of Computer Information)
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Detection system of Robust High Frequency Range via Noise Collection and Analysis

  • 투고 : 2016.11.09
  • 심사 : 2016.12.19
  • 발행 : 2017.01.31
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초록

Recently, there are various researches using inaudible high frequencies like as wireless communication based smart devices, data transmission algorithm, indoor positioning trace technologies. However, when they use high frequencies of inaudible range, they have a problem that the accuracy of data transmission with high frequencies was low because of interference from ambient noise in our real life. To solve this problem, in this paper, we proposed an application based on smart phone and server system for collection of ambient noise and detection of robust high frequency range. The server system could detect the robust high frequency range from statistical analysis of collected noise and the robust high frequency could avoid interference from ambient noise. We tested the proposed application's ability to gather noise and high frequencies for a certain period of time to evaluate performance. According to the testing results, we confirmed that the proposed application and server system could detect a robust high-frequency range via noise analysis in real life. Therefore, the proposed application and server could be a useful technology for future research on inaudible high frequencies.

키워드

참고문헌

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피인용 문헌

  1. A Disembarking Notification Application Based on Smart Device using High Frequencies from Built-in Speaker of Public Transportation vol.24, pp.4, 2017, https://doi.org/10.9708/jksci.2019.24.04.099