1) PWVD
多项式Wigner-Vill分布
1.
The polynomial Wigner-Vill distribution(PWVD) can analyse very well the instantaneous character of the Nolinear Frequency-modulated signals(NLFM).
多项式Wigner-Vill分布(PWVD)能很好地对非线性调频信号进行分析。
2) Wigner-Vill distribution
Wigner-Vill分布
1.
The original algorithm is improved and some parameters are extracted from the time-frequency image from Wigner-Vill distribution by the line-extracted capacity of Radon transform.
文中从图像处理的角度,利用Radon变换的直线提取功能对信号的Wigner-Vill分布的时频图像进行参数提取,并且对原来的算法进行一定的改进。
3) Wigner-Ville Distribution
多项式Wigner-Ville分布
1.
Coefficients Design of Polynomial Wigner-Ville Distributions;
多项式Wigner-Ville分布(PWVD)的系数设计
4) multinomial distribution
多项式分布
1.
Web text categorization based on multinomial distribution model;
基于多项式分布模型的Web文本分类
5) Wigner Distribution
Wigner分布
1.
Wigner distribution s application on holographic computing;
Wigner分布变换在全息计算中的应用
2.
For multi-component signals,Wigner distribution(WD) is well energy-concentrated but holds cross-terms,while spectrogram,the magnitude-squared STFT,has no cross-terms but bad energy-concentration,thus a time-frequency representation based on geometric mean of WD and Spectrogram(GMWS),which is simple and easy to be realized,was introduced to integrate both advantages.
对于多分量信号,Wigner分布的时频能量集中但存在交叉项,而由短时傅立叶变换模的平方得到的谱图无交叉项但时频聚集性较差,因而引入Wigner分布与谱图几何平均这种思想简单且易于实现的时频表示综合了二者的优势。
3.
Wigner distribution is a common time-frequency representation.
Wigner分布是最为常用的一种时频分布。
6) WVD
Wigner-Ville分布
1.
Time-frequency distribution characteristics of Wigner-Ville distribution(WVD) and Choi-Williams distribution(CWD) are discussed,both of which are members of the Cohen s class.
分析了2种Cohen类时频分布Wigner-Ville分布(WVD)及Choi-Williams分布(CWD)的时频特性。
2.
Some typical methods of extracting the in-pulse features of radar signal such as wavelet transformation and WVD were compared.
通过对小波变换法、Wigner-Ville分布等典型雷达信号脉内特征提取方法优缺点的分析,提出了一种将小波变换法和Wigner-Ville分布提取的结果进行截断综合的综合提取算法,实现了雷达信号的脉内特征准确提取。
3.
The instantaneous frequency spectrum of the impulse radio signal is represented by HHT,and which is calibrate its fidelity compared with the best existing methods,the wavelet analysis and Wigner-Ville distribution(WVD).
通过HHT可以得到冲击无线电信号的时频谱,并与传统的小波时频谱和Wigner-Ville分布进行了比较。
补充资料：多项式乘多项式法则
Image:1173836820929048.jpg
多项式乘多项式法则
先用一个多项式的每一项乘以另一个多项式的每一项，再把所得的积相加。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。