Summary
International Conference on Emerging Technologies for Communications
2020
Session Number:G2
Session:
Number:G2-1
Cause of Spurious Peaks on Acoustic Distance Measurement (Comparison of Methods Using 1ch and 2ch Observations)
Itsuki Yamakado, Toshihiro Shinohara, Tetsuji Uebo, Noboru Nakasako,
pp.-
Publication Date:2020/12/2
Online ISSN:2188-5079
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Summary:
Acoustic Distance Measurement(ADM) method based on the phase interference for the audible sound with 1ch or 2ch microphones is a powerful tool to measure a distance from the microphone to the target. However the ADM method sometimes estimates spurious distances due to the assumption that the reflection ratio is sufficiently small. This paper describes the fundamental effect of reflection ratio on ADM, comparing two types of ADM (i.e., 1ch and 2ch).