噪声包络 meaning in Chinese
noise envelope
Examples
- The distribution of line - spectrum and its harmonics extracted from the spectral envelope of different target ' s radiated noise exhibits strong differences , which may provide important clue for the detection and classification of targets
摘要不同类型目标辐射噪声包络谱中的线谱及其谐波分布存在较大差异,是进行目标检测和分类识别的重要线索。 - The ship radiated noise is analyzed and its 4 features are extracted from the envelop spectrum . the envelope of ship noise waveform can be demodulated utilizing hilbert transform , and the spectrum components with line rotation frequency of propeller shaft are extracted effectively by bispectrum , 1 ( 1 / 2 ) spectrum and 2 ( 1 / 2 ) spectrum analysis
对于通过希尔伯特变换解出的舰船辐射噪声包络信号进行高阶统计量分析,有效地提取出了舰船噪声的双谱、 11 / 2维谱、 21 / 2维谱等方面的特征。