Scattering from three-dimensional cavities is solved using the wavelet-MoM method, while the moment matrix is sparsified with help of the wavelet transform.
该文采用小波矩量法求解导电平面上的三维腔体散射,利用小波变换稀疏化矩量矩阵,加速其求逆,减少了腔体散射的总体计算时间。
The paper introduces a method of using multisensor to detect running state and using the wavelet packet transform to analyse the signals. In the ends the character frequ…
介绍了采用多传感器对采煤机的运行状态进行监测,通过小波包对监测信号进行分析,得到其特征频率信息,以达到对其早期故障的预测。
This paper mainly points out how to analyze and get rid of the random noise of seismic data by using the wavelet transform and de-noising method by threshold filter in wavelet domain.
本文主要是使用离散二进小波变换,采用小波域阈值的去噪方法对地震信号中随机噪声进行分析和处理。
This paper presents a new approach for real-time tuning the parameters of a conventional power system stabilizer using the wavelet neural network, which is used to design the stabilizer.
提出一种应用小波神经网络进行动态实时调整传统电力系统稳定器参数的设计方法。
The practical problems in the fault detection and fault location using the wavelet transform, such as the wavelet basis function, the initial data, the velocity of traveling wave are studied.
针对小波变换在故障检测与测距中应用的实际问题如小波基函数、小波变换初始数据、行波波速的选取等进行了研究。
The results of the experiment using this arithmetic to construct CL multi-wavelet pre-filter show that not only the compute speed is fast, but also the stability is remarkable improved.
利用本算法构造CL多小波前置滤波器的实验结果表明,本算法不仅计算速度快,而且稳定性也得到了显著提高。
In this method, the original image 's feature is extracted by using wavelet transform and quantization. The feature information is changed into watermark by the chaotic sequence encryption.
该方法在一定的量化标准下利用小渡变换提取图象的特征信息,通过混沌序列对其加密生成数字水印。
By making use of human sight property in wavelet domain, a binary image watermark algorithm without using the original image in the watermark extraction has been presented.
利用小波变换域中人眼的视觉特性,提出了一种提取水印时不需要原始图像的数字图像水印算法。
By using the energy distribution of the wavelet decomposition, image hiding algorithm based on wavelet transformation is presented, and then improved with prime number scrambling algorithm.
利用小波分解的能量分布规律,提出了基于小波变换的图像隐藏算法,并利用素数置乱对隐藏算法作进一步的改进。
The proper setting of threshold is crucial for the early prediction of the short circuit fault in the low-voltage distributed system when using the method of wavelet decomposition.
当采用小波分解方法对低压配电系统短路故障进行早期检测时,门限值的合理设置对故障检测的可靠性及灵敏度是至关重要的。
Using Absorption spectroscopic analysis to analyze Multi component solution with wavelet transform, the quantities of each component in the mixed solution can be measured.
用小波变换的方法分析多组分溶液的吸收光谱,可以测量多组分混合溶液中各组分的含量。
The algorithm is analyzed in detail, and experiment result again shows that the distribution of image wavelet transform coefficients can be well modeled using the generalized Gaussian distribution.
文章对算法进行了详细的理论分析和推导,实验结果进一步验证了用广义高斯分布描述图像小波变换系数统计特性的合理性。
The method is compared to the traditional FFT(Fast Fourier Transformation)analysis. The feasibility of analyzing the engineering measure data using wavelet transformation is discussed in this paper.
并将该方法与传统快速傅立叶变换分析结果进行比较,探讨了使用小波变换对工程实测数据进行分析的可行性。
The paper, by using the transform characteristic of Wavelet, mainly studies the method for image data compression in order to search for the new way of high proportion, high quality image compression.
小波变换是一个新兴数学分支,本文利用小波变换的特性研究图象数据压缩方法,以探寻高比例、高质量压缩图象数据的新途径。
A method using two wavelet transform to get the texture feature for remote sensing is put forward, in order to turn out the invariant texture classification for remote sensing in the wavelet domain.
分析了有限脊小波变换可以实现图像的旋转不变性和平移不变性,提出了结合两种小波变换提取图像纹理特征的方法,实现了在小波域中进行图像的不变纹理分类。
The time domain field distribution on the surface of Huygens' box was decomposed using wavelet, and the quantified coefficient of the wavelet decomposition was saved.
利用小波分解对惠更斯表面的时域切向场分布进行分解,存储经过阈值量化后的小波系数达到压缩编码的目的。
Frequency of modulated signals is extracted from frequency-modulated signals by using the relationship between the modulus of wavelet transform coefficient and the singular exponent.
利用小波变换系数的模值与信号奇异性指数之间的关系,从调频信号中提取出调制信号的频率。
The proposed semi-fragile watermarking scheme is realized using the RS error-correcting codes and wavelet decomposition.
利用RS码的编码冗余和图像特定域的数据特性实现了基于RS码的图像半脆弱水印。
The time frequency information of pressure in closed bomb is gained by using wavelet. Application of wavelet in the trend detection and signal denoising is discussed.
利用小波变换提取了密闭爆发器压力信号的时频特征,讨论了小波在压力信号趋势检测和信号去噪方面的应用。
The watermark was embedded in the wavelet domain using the mean quantization method. This method can be used to detect the distortion both in spatial and frequency domain.
这种算法是采用了均值量化的方法,把数字水印嵌入图像的离散小波域,可以检测在空间域和频率域的图像失真。
By using the devised predictor and updater for second geueration wavelet transform composition, threshold processing and reconstruction, the data trend can be obtained.
采用设计预测器和更新器对监测数据分解、阈值处理和重构,得到监测数据的趋势。
This paper briefly expounded the basic theory of wavelets and wavelet packet, and on the basis of using wavelet packet, introduced the general principles in vibration signal denoise.
简要阐述了小波分析、小波包分析的基本原理,并在此基础上介绍了利用小波包给信号去噪的一般原理。
The method of the robustness seismic wavelet estimation using the maximum likelihood deconvolution are discussed in the paper.
利用极大似然反褶积提取鲁棒性地震子波的方法进行了研究,并讨论了极大似然反褶积的稳健性。
This method is a stable and approximate description. We can reconstruct signal by using alternative projection algorithm from the wavelet transform with local maximum value.
小波变换局部极大值描述是信号的一种稳定的、近似的描述,可以利用交替投影算法从小波变换局部极大值描述来重构信号。
This paper proposed a method for the implementation of continuous wavelet-transform (CWT) using switched-current (si) technology, based on current mode and a substitute of switched-capacitor.
提出了一种基于电流模的开关电流技术取代基于电压模的开关电容技术实现连续小波变换的方法。
The feasibilities of using wavelet transform to extract the edges of the echoes and then classify the targets based on the edge features have been studied in this paper.
本文研究了利用小波变换提取水下目标瞬态回波的边缘特征并进行目标分类的可行性。
This paper combines the two aspects to recognize handwritten digits by using wavelet transform to extract feature and Adaptive Resonance Theory (ART) Neural Networks for Classification.
本文将二者结合起来,用小波变换抽取特征、用自适应共振art网络作模式分类器来识别手写数字。
The experiments show that compared with traditional method which using wavelet for image de-noising, the method based on FPGA has a great improvement in speed.
实验结果表明,以FP - GA来实现基于小波变换的图像去噪方法与传统方法相比,在速度方面得到了很大的提高。
A new method of fault diagnosis of in-situ sampled vibration signals is introduced for the non-stationery signals of rotating machines by using the harmonic wavelet filtering.
针对旋转机械非平稳信号的特点,提出采用谐波小波滤波对现场采集的振动信号进行故障诊断的新方法。
A new method of fault diagnosis of in-situ sampled vibration signals is introduced for the non-stationery signals of rotating machines by using the harmonic wavelet filtering.
针对旋转机械非平稳信号的特点,提出采用谐波小波滤波对现场采集的振动信号进行故障诊断的新方法。
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