为克服当前的包络分析法需要选择合适的滤波器参数的局限性，提出了一种基于小波变换的包络分析方法。
An envelope analysis approach based on wavelet transform is proposed in this paper to overcome the limitation of current envelope analysis approach in which the fit filter parameter must be chosen.
基于格雷厄姆扫描算法提出声谱图包络主波提取的新方法，并用改进的角度探测方法进行包络特征的识别。
A novel method based on the Graham scan is proposed to extract the chief wave of the spectrogram envelop, while an improved Angle detection method is applied to recognize the features.
得到了该方程的包络孤立波解和包络正弦波解。
And the envelope solitary wave solutions and envelope sinusoidal wave solutions have been obtained.
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