一种声源幅值参数标定方法  

A Calibration Method of Sound Source Amplitude Parameters

作　　者：黄太誉[1] HUANG Taiyu(AVIC Aircraft Strength Research Institute,Xi'an 710065)

机构地区：[1]中国飞机强度研究所,西安710065

出　　处：《舰船电子工程》2021年第4期166-170,共5页Ship Electronic Engineering

摘　　要：航空发动机气动噪声试验通常指定模拟声源的频率、相位和声压级,声源幅值参数精度直接影响声压级精度。针对人工标定时难以保证精度且耗时较长的问题,论文提出了一种利用二分法将标定程序化的算法,并进行了模拟标定试验。试验结果表明,该算法能够快速高效获得标定参数,从而为声源标定自动化提供算法支撑。The frequency,phase and pressure level of the simulated sound source are usually specified in the aeroengine aerodynamic noise test. In view of the difficulty in ensuring the accuracy of manual calibration and the long time consumption,this paper proposes a method of programming the calibration by using dichotomy method,and carries out the simulation calibration test. The experimental results show that the algorithm can obtain calibration parameters quickly and efficiently,thus providing algorithm support for sound source calibration automation.

关 键 词：噪声试验 声压级 声源标定 

分 类 号：V216.8[航空宇航科学与技术—航空宇航推进理论与工程]