An Improvement of Impulse Response Estimating Method in Acoustic Rhinometer

음향 비강 측정기의 임펄스 응답 추정 방법의 개선

Evaluation of the acoustic nasal geometry is obtained by estimating impulse response due to the nasal geometry. Conventionally, the Wiener filtering method proposed by Hunt has been used for estimating impulse response. In this paper, we proposed the Weiner filtering method using noise-to-signal power ratio for estimating impulse response. In result, the proposed method in this paper is effective than the conventional method.