查询词典 wavelet

Secondly, making use of the good time frequency characteristics of the wavelet analysis in the signal processing, the wavelet softthreshold filtering of the swing CO2 welding voltage signal under the arc discharge sense was carried out, showing the possibility of removing the peak current of the shortcircuit transition and improving the signal-to-noise ratio.

二是利用小波分析在信号处理上良好时域、频域局域性，对电弧传感方式下的摆动焊接电流进行了软阈值滤波，取得了良好的效果，消除了短路过渡所造成的峰值电流，提高了信噪比。

Since wavelet coefficient is related to reservoir well, high resolution smallscale signal after wavelet decomposition is reflection of fluid property in rocks for carbonate reservoir with little facies change.

由于小波系数与储层有着很好的相关性，对于岩相变化较小的复杂碳酸盐岩储层，小波分解后的高频小尺度信号就是岩石中流体性质情况的反映。

It has been proved that Reichardt's Elementary Motion Detector can perform figure-ground discrimination efficiently, and Wavelet transform analysis is similar to the multi-frequency channel of human vision. So we combine EMD, Wavelet transform and Pyramid image processing together, to propose a new motion estimation algorithm. The computer simulation results reveal that the proposed algorithm can well simulate vistual motion evaluation.

本文利用Reichardt的相关型初级运动检测器二维阵列可以有效地进行图象－背景相对运动分辨的特点，以及小波变换的频谱分析特性与人类视觉多频率通道特性相类似的性质，将EMD模型、小波变换和图象的塔式结构处理有机地结合起来，提出了一种类似视觉信息加工方式的新的运动分析算法。

Obtained about 100 models (namely wavelet-domain HMMs) of ships by training a large amount of the ship-radiated noise data, compared these models according to the combination of various conditions speed, abeam, etc.

对大量数据进行了训练得到近百个舰船辐射噪声的小波域HMM，并按航速、正横距离及不同工况组合比较了舰船辐射噪声的小波域HMM，给出了模型解释。

A method which combined Wavelet Affine Invariant Function with Convex Hull for object recognition is proposed.

提出一种将小波仿射不变函数与凸壳相结合进行目标识别的方法。

The Absolute Wavelet Affine Invariant Function is constructed based on WAIF,and is used as the eigenvector of the object to be recognized,and is combined with Convex Hull for object recognition.

基于小波仿射不变函数构造了绝对小波仿射不变函数，作为待识别目标的特征向量，与凸壳相结合进行目标识别。

Affine frame is a very basic concept in wavelet theory.

仿射框架是小波理论中很基本的概念。

The far-field wavelet of airgun array is the important criteria for evaluating airgun array,and also is one of the important parameters for seismic data processing after acquisition.

气枪阵列的远场子波是考察气枪阵列优劣的重要指标，同时气枪阵列远场子波也是后续地震资料处理的重要参数之一[1]。

The paper introduced in detail the development and application of airgun source and made summary of airgun theory and technology mainly from three aspects: developing history of airgun system,theory of airgun and relevant knowledge,and study of airgun array wavelet and developed results of correspondent software.

本文详细介绍了气枪震源的发展与应用，主要从三个方面对气枪震源的理论与技术进行综述：气枪震源系统的发展历程、气枪震源理论及相关知识、气枪阵列子波研究与软件开发成果。

We first obtained the algebraic structure when M band wavelet transform was performed to Toeplitz matrix.

首先研究了Toeplitz矩阵在多进制小波变换下的代数结构。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。