Description: idl环境下运行，计算两幅图像的交叉相关系数，用于变化检测方面的研究-idl environment to run the calculation two images of cross-correlation coefficient for change detection studies Platform: |
Size: 2048 |
Author:李观 |
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Description: 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying
in Rayleigh fading, using the Alamouti transmission scheme and
receiver selection diversity in the presence of channel-estimation
error, is studied. Closed-form expressions for the BER of log-likelihood
ratio selection, signal-to-noise ratio (SNR) selection, switchand-
stay combining selection, and maximum ratio combining are
derived in terms of the SNR and the cross-correlation coefficient
of the channel gain and its corrupted estimate. Two new selection
schemes, space–time sum-of-squares combining selection diversity
and space–time sum-of-magnitudes selection diversity, are
proposed and proven to provide almost the same performance as
SNR selection, but with much simpler implementations. The effects
of channel- Platform: |
Size: 340992 |
Author:刘小洋 |
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Description: 针对星载的干涉型成像光谱仪提出了一种基于归一化互相关系数的光谱数据立方体重建质量的量化评价
方法 ,并以工程化的要求作为仿真背景条件 ,建立了一个通用仿真系统。通过仿真 ,证实了基于归一化互相关系数的成
像光谱仪数据立方体重建质量量化评价方法是可行的。-According to the demands of processing imaging interferometer data cubes , which come f rom the remote satel2
lites , an evaluation system is necessary to estimate the performance of all kinds of processing algorithms. Aiming at the imaging
interferometers of the satellites , an estimative method based on normalized cross 2correlation coefficient (NCC) for data cube re2
construction quality of imaging interferometer is presented. According to the context of a real imaging spectrometer , a simula2
tion system is built and many simulative tests are done. The experimental results prove that NCC is robust and feasible. Platform: |
Size: 538624 |
Author:drawsalt |
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Description: 图像融合中常用的评价指标（非常全面）如：平均梯度、相关系数、信息熵、交叉熵、联合熵、均方误差、互信息、信噪比、峰值信噪比、均方根误差、空间频率、标准差、均值、扭曲程度、偏差指数等等。-Image fusion evaluation (very comprehensive): average gradient, correlation coefficient, entropy, cross entropy, joint entropy, mean square error and mutual information, signal to noise ratio, peak signal to noise ratio, root mean square error, spacefrequency, standard deviation, mean, distorting the degree of deviation index. Platform: |
Size: 9216 |
Author:杨哲辉 |
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Description: matlab程序求相关系数数字图像相关法是对全场位移和应变进行分析的一种新的实验力学方法
-matlab program seeking correlation coefficient Digital image cross-correlationmethod (DIC) is a newmethod ofexperimentalmechanics for the analysis ofwhole field
displacement and strain. Image processing is one of the cores ofDIC.
Platform: |
Size: 1024 |
Author:张华俊 |
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Description: 首先将非平稳的故障振动信号进行双树复小波包分解，得
到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量
进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实
现了故障特征信息的提取。-In view of the above situation, a new fault diagnosis
method is proposed based on dual-tree complex wavelet packet transform and threshold de-noising. Firstly, the
non-stationary fault signal is decomposed into several different frequency band components through dual-tree
complex wavelet packet decomposition. Secondly, Kurtosis and the cross-correlation coefficient of each
component are obtained and compared. Due to the kurtosis reflecting the signal variations, if the kurtosis value is
bigger, the degree of the change of signal is bigger too. The correlation coefficient can reflect the proximity
between the component and the original signal at the same time, the correlation coefficient is bigger, the more
similar with the original signal. Finally, the components that have a bigger value are chosen to be de-noised by a
soft threshold and reconstructed by dual-tree complex wavelet packet transform. The noise interference was
eliminated effectively, and the effective si Platform: |
Size: 1164288 |
Author:侯蒙蒙 |
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Description: The fusion of images is the process of combining two or more images into a single image retaining important features from each of the images. A scheme for fusion of multi-resolution 2D gray level images based on wavelet transform is presented in this paper. If the images are not already registered, a point-based registration, using affine transformation is performed prior to fusion. The images to be fused are first decomposed into sub images with different frequency and then information fusion is performed using these images under the proposed gradient and relative smoothness criterion. Finally these sub images are reconstructed into the result image with plentiful information. A quantitative measure of the degree of fusion is estimated by cross-correlation coefficient and comparison with some of the existing wavelet transform based image fusion techniques is carried out. Platform: |
Size: 3039232 |
Author:Deepesh |
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Description: 含噪脉冲信号进行相关检测,保证准确无误，是学习通信的好帮手，对于初学者具有参考意义，包括广义互相关函数GCC时延估计，LCMV优化设计阵列处理信号，最终的权值矩阵就是滤波器的系数，使用高阶累积量对MPSK信号进行调制识别，GPS和INS组合导航程序。-Noisy pulse correlation detection signal, Ensure accurate communication is learning a good helper, For beginners with a reference value, Including the generalized cross-correlation function GCC time delay estimation, LCMV optimization design array signal processing, The final weight matrix is ??the filter coefficient, Using high-order cumulants of MPSK signal modulation recognition, GPS and INS navigation program. Platform: |
Size: 7168 |
Author:reaigue |
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Description: LDPC码的完整的编译码，可以广泛的应用于数据预测及数据分析,基于欧几里得距离的聚类分析，最终的权值矩阵就是滤波器的系数，包括广义互相关函数GCC时延估计，使用混沌与分形分析的例程，考虑雨衰 阴影 和多径影响。- Complete codec LDPC code, Can be widely used in data analysis and forecast data, Clustering analysis based on Euclidean distance, The final weight matrix is ??the filter coefficient, Including the generalized cross-correlation function GCC time delay estimation, Use Chaos and fractal analysis routines, Consider shadow rain attenuation and multipath effect. Platform: |
Size: 10240 |
Author:zvvsxarnk |
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Description: 包括调制，解调，信噪比计算，滤波求和方式实现宽带波束形成，最终的权值矩阵就是滤波器的系数，包括广义互相关函数GCC时延估计，有CDF三角函数曲线/三维曲线图，是一种双隐层反向传播神经网络。- Includes the modulation, demodulation, signal to noise ratio calculation, Filtering summation way broadband beamforming, The final weight matrix is ??the filter coefficient, Including the generalized cross-correlation function GCC time delay estimation, There CDF trigonometric curve/3D graphs, Is a two hidden layer back propagation neural network. Platform: |
Size: 6144 |
Author:jdhbh |
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Description: 主同步信号PSS在时域上的相关仿真，music高阶谱分析算法，仿真图是速度、距离、幅度三维图像，最终的权值矩阵就是滤波器的系数，有循环检测，周期性检测，光纤陀螺输出误差的allan方差分析，包括广义互相关函数GCC时延估计，有借鉴意义哦。- PSS primary synchronization signal in the time domain simulation related, music higher order spectral analysis algorithm, FIG simulation speed, distance, amplitude three-dimensional image, The final weight matrix is ??the filter coefficient, There are cycle detection, periodic testing, allan FOG output error variance analysis, Including the generalized cross-correlation function GCC time delay estimation, There are reference Oh. Platform: |
Size: 8192 |
Author:wjtghjj |
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Description: 包括广义互相关函数GCC时延估计，非归零型差分相位调制信号建模与仿真分析 ，最终的权值矩阵就是滤波器的系数。- Including the generalized cross-correlation function GCC time delay estimation, NRZ type differential phase modulation signal modeling and simulation analysis, The final weight matrix is ??the filter coefficient. Platform: |
Size: 6144 |
Author:fing |
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Search - cross correlation coefficient