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レベル統計量に基づく騒音評価量(Leq)の簡単且実用的な推定手法 A Simple and Practial Estimation Method of Leq Noise Evaluation Index by Use of Statistical Information on Noise Level Fluctuation 三谷, 康夫 美禰, 忠夫 Leq騒音評価量 統計情報 非ガウス性 騒音レベル変動 環境騒音 Leq noise evaluation index statistical information non-Gaussian noise level fluctuation environmental noise P(論文) As is well-known, the noise evaluation index, Leq, is very important in the actual field of noise evaluation and regulation problems. On the other hand, an extraction of the lower and/or higher order statistical information has become easier by use of a digital computer. Therefore, as an application of noise evaluation method with the aid of a microcomputer, the authors propose a method for estimating this Leq evaluation index based on the- momentary statistic value of the noise level fluctuation. Furthermore, the environmental noises which one encounters in daily life exhibit various types of probability distribution forms apart from a standard Gaussian distribution, due to the diversified causes of fluctuation. From the above practical points of view, in this .treatise, a general explicit expression for estimating the Leq evaluation index by use of the momentary statistic value of the general types of noise level fluctuations (including non-Gaussian distribution) has been proposed after introducing a general explicit expression of the noise level probability distribution. Finally, the validity the proposed estimation method has been experimentally confirmed by applying it to actual road traffic noise data. 1987 jpn departmental bulletin paper https://fukuyama-u.repo.nii.ac.jp/records/7723 AN00217655 福山大学工学部紀要 9 19 25 https://fukuyama-u.repo.nii.ac.jp/record/7723/files/KJ00005781084.pdf application/pdf 450.4 kB 1987-01-01