实践证明：用基于短时傅里叶变换的瀑布图来分析非平稳信号，具有分辨率高、特征提取结果更为精确的特点。
It proved that using the Waterfall based on Short-Time Fourier Transform to analyze non-balanced signal has many advantages such as.
本文基于LPC分析，提出用反傅里叶变换的方法来求解频谱搬移后的系统单位冲激响应，以此来实现频谱包络的变换，并取得了较好的效果。
In this thesis, based on LPC analysis, a method for calculating the spectrum converted system unit impulse function is proposed. So the spectral envelope is converted efficiently.
本文基于LPC分析，提出用反傅里叶变换的方法来求解频谱搬移后的系统单位冲激响应，以此来实现频谱包络的变换，并取得了较好的效果。
In this thesis, based on LPC analysis, a method for calculating the spectrum converted system unit impulse function is proposed. So the spectral envelope is converted efficiently.
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