By using MATLAB signal and using window method, frequency sampling and Chebyshev approximation the design of low pass digital filter in the toolbox have been processed.
采用窗函数法、频率抽样法和切比雪夫最佳一致逼近法,通过调用Matlab信号处理工具箱中的函数设计低通数字滤波器。
In this studies, window structure's resonance frequency resulted in indoor low frequency noise pollution which come from traffic noise.
在本研究中,窗户结构共振频率造成了道路两侧住宅室内低频噪声污染。
In this studies, window structure's resonance frequency resulted in indoor low frequency noise pollution which come from traffic noise.
在本研究中,窗户结构共振频率造成了道路两侧住宅室内低频噪声污染。
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