Chinese translation for "hht"

鸿合
头颈部系带牵引
遗传性出血性毛细血管扩张症
遗传性毛细血管扩张症

Example Sentences:

	1.	Hht - based health monitoring of wingbox section 的机翼盒段的健康监控
	2.	Application of hht for modal parameter identification to civil structures 方法在结构模态参数识别中的应用
	3.	The paper proposed a method that combining the lamb wave with time - frequency domain analysis technology for the damage detection of composite materials 本文将lamb波与hht技术结合起来,用于复合材料结构的损伤识别。
	4.	Hht is more effective than experimental modal analysis and can give a more clear physically meaningful interpretation to the structure response 与模态分析方法相比， hht分析的结果准确稳定，变化趋势清晰明显而且具有明显的物理含义。
	5.	In our system , firstly , we pre - process envelope image , introduce basic method of two - value and noise ' s filtering accordingly , and present a way of deskew based on hht algorithm 在系统中，首先对信封图象进行了预处理并给出了相应的二值化、噪声滤除方法，提出一种基于hht的倾斜校正的方法。
	6.	In the recent years , as the proportion of mechanic industry in nation economy increases , the requirement for safe operation of mechanic equipment is higher and higher . due to that all kinds of technology are progressively applied to mechanic equipment fault and diagnosis , such as signal processing , pattern recognition , etc . , mechanical equipment fault and diagnosis technology has been developed rapidly all over the world . the reciprocating pump as a part of mechanic equipment field takes up very important station in production department , such as the petrochemical industry . because its applications are very widely , making researchs about its fault and diagnosis has important meaning . though people have already made out some researchs and obtained some research results , but the total diagnosis level is not still very high . based on former research results , according to the strong non - stationary characteristic of the pump valve signal of the reciprocating pump , this text introduces hilbert - huang transform ( abbreviated as hht ) , and diagnosed the pump valve faults of the reciprocating pump well 虽然人们已对其开展了不少研究并取得了一些研究成果,但总的诊断水平还不是很高。本文在基于前人研究成果的基础上,根据往复泵泵阀信号的强非平稳特性,引入了希尔伯特-黄变换(简称hht ) ,对往复泵泵阀较好地进行了诊断。往复泵由于其结构复杂,激励源多,故其信号为强非平稳信号,对其进行故障特征提取和诊断比较困难,所以本文主要研究了往复泵泵阀振动信号的特征提取方法。
	7.	To solve this problem , some researches on denoising for the nonstationary and noisy - strong signal are carried out in this paper . combining hilbert - huang transform ( hht ) which has been proved to be more valid in the aspect of time - frequency analysis , with mature wavelet transform ( wt ) threshold theory , an emd - based wavelet threshold denoising algorithm is presented 针对这个问题,本文也开展了对信噪比较低的含噪非平稳信号的去噪研究工作,并将具有比小波变换更强时频分析能力的希尔伯特?黄变换( hht )与成熟的小波阈值理论相结合,提出基于emd的小波阈值去噪算法。
	8.	First of all , the emd - based wavelet threshold denoising algorithm is apllied to denoise noisy structural response data to reduce the effect resulting from noise . during the process of the empirical mode decomposition ( emd ) , the two boundaries of the response signal are processed with semi - periodical ? semi - symmetrical method . subsequently , hilbert - huang transform ( hht ) is used in identifying structural intrinsic frequency 这套技术用以解决实际工程应用中遇到的在信噪比较低情况下通过结构的响应信号来进行结构损伤识别问题,即先用基于emd的小波阈值去噪算法对含噪结构响应进行去噪处理,以有效降低噪声影响(在去噪的emd处理过程中,对信号的边界采用“半周期半对称”延括算法来抑制边界误差) ,然后再用希尔伯特?黄变换( hht )进行结构的固有频率识别,最后计算出结构刚度。
	9.	Because reciprocating pump has complicated structure and more exciters , so its signal is a strong non - stationary signal , and carrying out fault feature extraction and diagnosis is very difficult to it , this text mainly researches on featute extraction of reciprocating pump ’ s valve vibration signal . this text introduces hht that huang put forward , it is a kind of signal processing method that suits for dealing with the stationary signal , and suits for non - stationary signal also . although the hilbert - huang transform ( hht ) is an effective tool processing the non - stationary signal , the hht based on emperical mode decomposition ( abbreviated as emd ) algorithm which adopts the cubic spline interpolation could n ' t acquire accurate characteristics for the strong non - stationary signals in that the spline produces an accurate result only under the condition that the data consists of values of a smooth function 本文引入了huang等人提出的hht , hht是一种既适合于处理平稳信号也是一种适合于处理非平稳信号的信号处理方法。尽管希尔伯特-黄变换( hht )是处理非平稳信号的有效工具,但基于经验模态分解(简称emd )的hht由于采用三次样条插值而不能准确提取强非平稳信号的特征,因为三次样条插值只有在数据由光滑函数值构成的情况下才能产生精确的结果。为了解决这个问题,本文提出了基于改进的emd算法,即采用分段三次hermite插值多项式( pchip )作为极值包络的方法。
	10.	Secondly , hht that is one of the time - frequency representations ( tfrs ) is introduced in aspects of not only the theoretical analyses but also the programmer in matlab , including how to compute the instantaneous frequency , how to process the emd and how to dispose hilbert spectrum , after that bring forward the resolve to the problems during the processing of emd 其次,介绍了hht时频分析方法,包括理论分析与算法的matlab编程。其中从瞬时频率求解、经验模式分解和hilbert谱绘制几个方面分析了hht ,同时提出了经验模式分解过程中边缘处理和固有模态准则确定中存在的问题,并给出了解决方法,改善了hht的分析效果。

Similar Words：

"hhrtg" Chinese translation, "hhrtg_d" Chinese translation, "hhs" Chinese translation, "hhshi bunshichi" Chinese translation, "hhsn" Chinese translation, "hht hand-held terminal" Chinese translation, "hht hand-held tester" Chinese translation, "hhtc" Chinese translation, "hhtt" Chinese translation, "hhu" Chinese translation