The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Effect of Initial Value Setting on Convergence Characteristics and Margin of Step Parameters in an Adaptive Ultrasonic Beamforming System using LMS Algorithm

LMS 알고리즘을 이용하는 적응형 초음파 빔포밍 시스템에서 초기치 설정이 수렴 특성과 스텝 파라미터의 여유도에 미치는 영향

  • 채광철 (전남대학교 전자통신공학과) ;
  • 조기량 (전남대학교 공학대학 전자통신공학과)
  • Received : 2023.02.15
  • Accepted : 2023.04.17
  • Published : 2023.04.30
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Abstract

In this paper, when using the LMS algorithm for adaptive ultrasonic beamforming system, the effect of initial value setting on the margin of step parameters was studied. To this end, quasi-ideal beams, rotational beams with arbitrarily set beam widths were used as examples. In the numerical simulations, an arbitrary initial value(the number of sound sources fixed to any number) was set in the ultrasonic beamforming system, and the margin of the step parameter and convergence characteristics thereof were compared.

본 논문에서는 적응형 초음파 빔포밍 시스템에 LMS 알고리즘을 이용하는 때에 초기치 설정이 스텝 파라미터의 여유도에 미치는 영향을 연구하였다. 이를 위하여 임의로 설정한 빔폭을 갖는 준이상 빔과 회전 빔에 대한 빔포밍에 대해서 검토하였다. 수치 실험은 초음파 빔포밍 시스템에 임의의 초기치(음원수는 임의의 수로 고정)를 설정하고, 이에 대한 스텝 파라미터의 여유도와 수렴 특성 등을 비교하였다.

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References

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