| 1. | Generalized analytic signal based on fractional hilbert transform
基于分数希尔伯特变换的广义解析信号 |
| 2. | Study on the problems in extracting instantaneous characters of signals based on hilbert transform
变换提取信号瞬时特征参数的问题研究 |
| 3. | There are two types of end effects in the empirical mode decomposition method : in the spline interpolation and in the hilbert transform
2经验模态分解方法中，有两种端点效应：在样条插值中以及在希尔伯特变换中。 |
| 4. | A method using transient frequency based on complex - analytical - wavelet - transform , which combines hilbert transform with wavelet transform and possesses adaptive analytical ability , is proposed
该方法将希尔伯特变换与小波变换相结合，具有自适应分析能力。 |
| 5. | The paper is mainly discuss the gabor transform , hilbert transform and wavelet transform . through the analysis of gabor transform we can find that the amplitude of gabor transform is sensitive to reservior
关于解析信号的研究，本文主要以分频gabor变换、 hilber变换和小波变换为主要研究内容。 |
| 6. | Each demodulation analysis technique has its merits and limitations . in this paper , the principal and limitations of the hilbert transform and generalized detection - filtering demodulation analysis are systematically studied
通过系统分析和对比现有几种解调分析方法各自的优缺点，本文深入研究了希尔伯特变换和广义检波滤波解调分析技术的原理、局限性及其工程中的应用。 |
| 7. | The phase information offered by hilbert transform can offer information of reserve in high precision . wavelet transform can analysis any detail of seismic data . the information pick up from wavelet transform is obverse high than hilbert transform and routine analysis
而hilber变换的相位信息可以提供高精度的薄互层信息，而小波分析可以对任意细节聚焦分析，其提取的三瞬信息明显高于hilber变换变换和常规处理剖面。 |
| 8. | In the part of simulating the through signatures of the sound field of ship , it not only comes down to the application of time - frequency analysis methods , and the application of the architecture between processing and interpretation of signals , but also the application of the hilbert transform
其中，舰船声场通过特性的仿真不仅涉及到了时频分析思想和依频谱模重构原始序列的迭代算法的应用，还涉及到了希尔波特变换的应用。 |
| 9. | Then , the hilbert transform is applied to each modal response to obtain the instantaneous amplitude and phase angle time histories . a linear least - square fit procedure is proposed to identify the natural frequency , damping ratios , physical mass , damping and stiffness matrices from instantaneous amplitude and phase angle for each modal response
然后对各阶模态响应进行hilbert变换，得到瞬态幅值和相位角的时间历程，再运用线性最小均方拟合来识别自然频率、阻尼比、质量、刚度和阻尼矩阵。 |
| 10. | 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。 |
