【摘要】 以MATLAB为软件开发平台,设计一种对风力发电机所产生噪声的1/3倍频程分析与处理系统。该系统以声学测量的基本理论方法和MATLAB强大的计算分析能力为基础,通过对风力发电机的运行噪声与背景噪声信号进行采集、分析和处理,掌握其频谱特征,设计出风力发电机运行与停机中对风速判定和原始声压数据转化为1/3倍频程声压级数据的处理,以及对混合噪声进行背景修正的1/3倍频程声压级数据的处理。更多还原

【Abstract】 Using MATLAB as a software development platform,a 1/3 octave analysis and processing system for noise generated by wind generators was designed. The system is based on the basic theoretical methods of acoustic measurement and MATLAB’s powerful calculation and analysis capabilities. It collects,processes,and analyzes the operational noise and background noise signals of wind turbine generators,grasps its spectrum characteristics,and designs wind turbine operation. The processing of the wind speed determination and raw sound pressure data conversion into 1/3 octave sound pressure level data,and the processing of mixed noise noise with background correction 1/3 octave sound pressure level data.更多还原