1) Improved Hilbert-Huang transform
改进的希尔波特黄变换
2) Hilbert-Huang Transform
希尔波特-黄变换
1.
Analysis of Water Oscillations in Beach-surf Zone based on Hilbert-Huang Transform;
基于希尔波特-黄变换的海滩碎波带水体波动特征分析
2.
Fault Location and Protection Methods Using Hilbert-Huang Transform of Traveling Waves for Transmission Lines;
为此,本论文利用希尔波特-黄变换(HHT)对故障行波信号进行分析,提出了新型行波定位和保护方法。
3) Hilbert-Huang Transform
希尔波特黄变换
1.
The Empirical Mode Decomposition and the Hilbert-Huang Transform analysis was the hotspot in the last ten years.
基于EMD(Empirical Mode Decomposition)的希尔波特黄变换(HHT)时频分析方法是近10年来研究的热点。
2.
In order to improve the quality of time-frequency spectrum based on Hilbert-Huang transform(HHT),the iterative singular value decomposition(ISVD) de-noising and reassigned spectrogram are applied in this paper.
针对基于希尔波特黄变换(HHT)的时频谱存在受噪声影响大、高频部分时频分辨率低的缺点,提出将迭代奇异值分解(ISVD)降噪和重排谱图应用于HHT时频谱分析中。
4) Hilbert-Huang transform
希尔伯特-黄变换
1.
Medical Image Retrieval Based on Hilbert-Huang Transform;
使用希尔伯特-黄变换的医学图像检索
2.
Hilbert-Huang transform spectrum and its application in seismic signal analysis;
希尔伯特-黄变换谱及其在地震信号分析中的应用
3.
Time-frequency spectral analysis of seismic data based on Hilbert-Huang transform
基于希尔伯特-黄变换的地震信号时频谱分析
5) Hilbert-Huang Transform(HHT)
希尔伯特黄变换
1.
The proposed HVD method was based on the Hilbert transform(HT),just as Hilbert-Huang transform(HHT),but did not involve complicated empirical mode decomposition(EMD).
虽然HVD方法和希尔伯特黄变换(HHT)方法这两者均以希尔伯特变换为基础,但HVD方法避免了复杂的经验模式分解(EMD)过程。
6) HHT
希尔伯特黄变换
1.
The Hilbert-Huang transform(HHT) is a new method of time-frequency spectrum treatment that calls for the decomposition of time sequenced data by empirical modes(EMD) which is followed by a Hilbert transform (HT).
希尔伯特黄变换是先把一列时间序列数据通过经验模态分解,然后经过希尔伯特变换获得时频谱的信号处理新方法。
2.
The Hilbert-Huang Transformation (HHT) consists of the following steps: First, decomposition of time sequenced data by empirical modes (EMD) followed by a Hilbert transformation to obtain a new method of spectrum treatment.
希尔伯特黄变换(Hilbert-HuangTransformation,HHT),是先把一列时间序列数据通过经验模态分解(EmpiricalModeDecomposition,EMD),然后经过希尔伯特变换获得频谱的信号处理新方法。
3.
To deal with the problem of ineffective extraction in underwater target feature extraction methods based on traditional time-frequency analysis,a new time-frequency analysis method,the Hilbert-Huang Transform(HHT) was applied.
针对传统时频分析方法的水下目标特征提取各有其局限,采用了希尔伯特黄变换方法用于水下目标特征提取。
补充资料:沃尔夫-基希涅尔-黄鸣龙还原反应
分子式:
CAS号:
性质:醛、酮转变成腙或缩氨基脲,在碱的作用下中醛、酮的羰基即被两个氢取代生成化合物。N. 基希涅尔(1911)将腙滴加到热的氢氧化钾-铂上来实现这一反应;L. 沃尔夫(1912)将腙与乙醇钠-乙醇混合在封管中加热来进行;中国黄鸣龙(1946)将醛、酮与水合肼、氢氧化钾混合,在乙二醇或甘油中在常压下加热回流,收率很高,操作简便,应用广泛。
CAS号:
性质:醛、酮转变成腙或缩氨基脲,在碱的作用下中醛、酮的羰基即被两个氢取代生成化合物。N. 基希涅尔(1911)将腙滴加到热的氢氧化钾-铂上来实现这一反应;L. 沃尔夫(1912)将腙与乙醇钠-乙醇混合在封管中加热来进行;中国黄鸣龙(1946)将醛、酮与水合肼、氢氧化钾混合,在乙二醇或甘油中在常压下加热回流,收率很高,操作简便,应用广泛。
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参考词条