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空域相关
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  spatial correlation
     Adaptive Wavelet Denoising by Spatial Correlation Thresholding
     基于空域相关的小波域硬阈值滤波
短句来源
     Based on the Canonical Correlation Analysis(CCA),the temporal correlation and spatial correlation are used together to detect the activated area in the fMRI data.
     在典型相关分析(CCA)基础上将时域相关系数与空域相关系数有机结合,并得到新的相关系数进行阈值分割,进而对fMR I数据进行提取.
短句来源
     It proves the efficiency of the improved approach for data compression of complex-valued SAR images through evaluating complex spatial correlation coefficient, comparing the amplitude images of raw data and decompressed data, and displaying the correlation map visually.
     复值空域相关系数指标评估,以及原始数据、重建数据的幅度图对比和两幅数据图 像之间的相关系数图都验证了算法的有效性。
短句来源
     L. Dohono's wavelet shrinkage method and Xu's spatial correlation filtering(SCF) was developed.
     本文基于 Dohono提出的小波阈值去噪和 Mallat,Xu等提出的空域相关去噪法 ,提出了一种新的自适应小波阈值函数滤噪法。
短句来源
     Improved Algorithm of Spatial Correlation Filtering and Its Application in Infrared Spectral Signal
     空域相关滤噪法的改进及用于红外光谱信号处理
短句来源
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  null field correlation
     The estimation methods of noise energy are studied in this paper, which include MAD method and its improved null field correlation estimation method.
     研究了噪声能量的估计方法:MAD法及其改进方法,空域相关估计法.
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  “空域相关”译为未确定词的双语例句
     The wavelet analysis method is applied to traditional correlation method .
     通过将小波分析的方法应用到传统的空域相关计算中,提出了基于小波变换的数字散斑相关方法。
短句来源
     Coded eigen-beams is studied in this project when a group of eigenvector from thespatial matrix is introduced as the weight of the STC transmit array.
     3.以一组空域相关矩阵的特征向量为空时码发射矩阵的加权因子,研究了基于特征波束形成的空时编码——空时特征波束编码。
短句来源
     Compared with the traditional DSCM,the accuracy of this new method is improved dramatically and the relative error is less than 1%.
     计算结果表明,多尺度小波降噪的数字散斑相关搜索方法与传统空域相关搜索方法相比,其测量精度提高了一个数量级,相对误差可以控制在1%以内;
短句来源
     A new method based on the wavelet transform is developed and the principle of this method is presented.
     详细介绍了该方法的原理,并对传统空域相关方法与小波相关方法进行了实验计算比较。
短句来源
     The method of AFM image enhancement by means of wavelet transform is researched, an improved image enhancement method based on multiscale correlation in wavelet domain is proposed, experiments show that this method can remove noise and preserve significant details.
     研究了小波变换在AFM图像增强领域的应用,在分析影响AFM. IPC-208B型机图像噪声性质的基础上,提出了一种改进的基于空域相关的小波图像去噪算法,仿真对比实验和标准图象测试结果表明,该算法在成功去噪的同时能够有效保持图像的细节信息,且运算速度快;
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  spatial correlation
This peculiar behavior of an entangled quantum system has surprisingly been observed experimentally in two-photon temporal and spatial correlation measurements, such as "ghost" interference and "ghost" imaging.
      
Seismic ground motion analysis of Shanghai Pudong Airport site considering the effects of spatial correlation and irregular topo
      
The spatial correlation of seismic ground motion, as well as the amplification of soft alluvium and the effect of irregular topography, should be considered.
      
For indicating the effect of the spatial correlation of input motions, the horizontal uniform inputs, as well as the horizontal and vertical uniform input are carried out for the seismic response analysis of the site.
      
It is shown theoretically that if the electrode surface is uniformly accessible, the current-pulsation spectrum is determined by the magnitudes of the three components of the velocity-pulsation vector and the spatial correlation of these components.
      
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In this paper,we associated multiresolutional analysis with spatially filter,then we gave a simple and changeable coefficient method.The experiments proved our method is very efficient in the noisy signal processing.

利用多分辨分析思想对空域相关滤波法进行了研究 ,给出了一种形式简单的变系数算法 ,仿真结果说明该算法对处理含有噪声的信号是有效的。

This paper presents a novel method for jointly estimating the direction of arrival (DOA) and time delay of each multipath of the desired user in a DS CDMA system.The respective spectra of the square of the desired user and MAI components at the matched filter output are different.After pre processing the spatial covariance matrixes at each frequency,we propose the 2D unitary ESPRIT algorithm as our estimator which provides closed form as well as automatically paired DOA and time delay estimates.The approach...

This paper presents a novel method for jointly estimating the direction of arrival (DOA) and time delay of each multipath of the desired user in a DS CDMA system.The respective spectra of the square of the desired user and MAI components at the matched filter output are different.After pre processing the spatial covariance matrixes at each frequency,we propose the 2D unitary ESPRIT algorithm as our estimator which provides closed form as well as automatically paired DOA and time delay estimates.The approach presented herein can give accurate estimates even under near far conditions at low computation cost.

本文针对DS CDMA系统 ,提出了一种新的期望用户多径信号波达方向和时延联合估计方法 .在匹配滤波器输出中 ,期望用户信号的平方与多址干扰信号的平方具有不同的频谱特性 .对各个频率上的空域相关矩阵进行预处理后 ,本文采用两维unitary ESPRIT算法完成角度时延的闭式估计和自动配对 .本文方法计算量小 ,并且在存在远近效应的情况下 ,仍能完成参数的准确估计

The noise often degrades the accuracy and precision of the results in instrument analysis. Wavelet transforms are multiresolution decompositions that can be used for signal denoising. In this paper, a new wavelet denoising method--spatial correlation filtering (SCF) is proposed to processing chemical signal. Based on the fact that the wavelet coefficients module of signal and noise after wavelet decomposition have different characteristics with the wavelet scale. Therefore, directly comparing the spatial correlation...

The noise often degrades the accuracy and precision of the results in instrument analysis. Wavelet transforms are multiresolution decompositions that can be used for signal denoising. In this paper, a new wavelet denoising method--spatial correlation filtering (SCF) is proposed to processing chemical signal. Based on the fact that the wavelet coefficients module of signal and noise after wavelet decomposition have different characteristics with the wavelet scale. Therefore, directly comparing the spatial correlation module with the wavelet module at different scales can reduce the noise contents from the chemical signal. SCF needs no denoising threshold selection and has the advantages of simplicity, swiftness and little signal distortion. The simulation and inductiveyl coupled plasma-atomic emission spectroscopy experiment results prove its effective.

仪器分析测定中 ,噪声的存在往往影响分析的准确度和仪器的检出限。小波变换多分辨分析的特性使得它成为一种很好的滤噪方法。基于小波分解后信号与噪声的小波系数随尺度变化规律不同的特性 ,提出了一种新的滤波滤方法———空域相关法 ,即通过不同尺度上相关系数模值与小波系数模值的比较 ,达到滤波滤的目的。本文提出的方法具有无需人为选定滤噪阈值和小波函数、方法简单、失真度小等优点 ,可以大大提高信号的信噪比。模拟数据和ICP AES实验数据证明了该方法的有效性

 
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