混叠

如果对K空间数据随机降采样，那么在重建图像中的混叠伪影将呈现出不一致性（看起来很象噪声）。

In the random undersampling case , the aliasing artifacts due to k-space undersampling is incoherent ( noise like ) .

连续Gabor展开离散化后的混叠问题

Aliasing Problem after Continuous Gabor Expansion be Made Discrete

16层螺旋CT中混叠假影的分析

Analysis of aliasing artifacts in 16 - slice helical CT

预估计混叠度的MAP超分辨率处理算法

An Aliasing Degree Pre-Estimated MAP Algorithm of Super-Resolution Processing

IP芯核测试响应的零混叠空间压缩

Zero-aliasing Space Compaction of Test Response for IP Cores

CCD的非线性与频谱混叠的关系研究

Study of the Relationship Between Nonlinearity of CCD and Frequency Overlapping

接着，在基于CASE匹配的SAR影像分类过程中，采用分层相似度评价的方法，消除CASE特征相互之间的混叠效应。最后，采用面向对象的方法进行影像分类后处理。

In the implementation of case-based classification , we propose a stratified similarity assessment and use it for the case-based matching .

图像放大中的两种FIR内插滤波器实现结构及其抗混叠效果比较

Comparison of the structures and anti-aliasing of two interpolation filters used in image magnification

基于FPGA的新型抗混叠CIC抽取滤波器的设计

New anti-aliasing CIC filter design and realization on FPGA

Bark尺度子波变换及其在混叠语音分离中的应用

Bark Wavelet Transform and Its Application for Overlapping Speech Separation

基于ICA和HMM的战场混叠声目标识别

Identification of Field Mixing Acoustic Targets Based on ICA and HMM

仿真结果验证了单个PID神经网络算法，能分离线性或后非线性混叠信号。

The simulation shows that singular PID neural network can separate source signals for the linear mixture and the post-nonlinear mixture .

对输入2个混叠信号时，用单个PI神经网络分离；

While two mixing signals are input , the singular PI neural network is used to separate signals .

基于频域内插抗混叠Shannon小波包变换的谐波检测方法

Harmonic detection based on frequency domain interpolation anti-aliasing Shannon wavelet packet transform

分析了CCD的非线性产生频谱混叠问题，提出了减小频谱混叠的方法。

The overlapping spectrum caused by the nonlinearity of CCD was analyzed , and the way of reducing overlapping spectrum was presented .

建立已知振动目标的GMM，然后实现混叠振动目标自适应盲源分离，提取了振动目标的线性预测系数作为目标识别的参数，产生了训练和识别所用的特征向量。

The GMM was employed to extract LPC as coefficients of targets identification .

本文将先进的DASP（DataAlias-freeSignalProcessing）抗混叠信号采样技术运用到现代测试仪器平台中。

The advanced DASP ( Data Alias - free Signal Processing ) technology is applied to modern test instrument platform .

为了分析谱线图像数据相互混叠、相互交错的原因，对丹巴天然云母还进行了X射线单晶衍射实验与表面观察实验。

In order to analyze the reason of unsatisfactory pattern in which spectral lines interveined each other , X-ray diffraction experiment and observating surface of muscovite were conducted .

如EMD分解后所出现的模态混叠问题就是其中之一。

For example , the mode mixing problem occured after the EMD decomposition is one of them .

对DFT的频率混叠问题和频谱泄露问题做了分析并提出解决方法。

The frequency spectrum aliasing problem and leakage problem about DFT are analyzed , and the solutions are proposed .

由于R，B通道的低采样率，R、B分量将会在图像的高频区域，例如边缘区域产生混叠，从而出现伪彩色。

Because of the low sampling rate of channels R and B , they will overlap in the high frequency region , such as region 's rim , and produce artificial color .

利用DCT变换的特性，该算法可以消除基于离散傅立叶变换（DFT）的信道估计算法引入的混叠效应。

By exploiting the properties of DCT , the proposed method mitigates the aliasing effect introduced in DFT-based channel estimation method .

系统硬件部分包括FPGA处理芯片，电压调理电路，抗混叠滤波电路，锁相倍频电路，A/D采样电路。

The hardware of the system includes the FPGA chip , the voltage conditioning circuit , anti-aliasing filter circuit , PLL circuit , the A / D sampling circuit .

用ICA算法可以将各独立分量及混叠矩阵估计出来，伪迹是其中的一个独立分量。

The independent components and mix matrix are estimated using ICA algorithm by taking stimulus artifact as one of the independent components .

一种基于去混叠影像配准方法的POCS超分辨率序列图像重建

POCS Super-resolution Sequence Image Reconstruction Based on Image Registration Excluded Aliased Frequency Domain

由于实际信号中通常含有干扰噪声，会导致EMD分解后的各阶IMF分量间出现模态混叠现象。

As the actual signal usually contain noise , so there will be the phenomena of mode mixing among IMF components after the EMD decomposition .

本文描述了CCD摄象机的混叠失真对图象清晰度的干扰，论述了混叠失真的测量方法，探讨了如何正确估价CCD摄象机的清晰度。

This paper describes alias-distortion disturbance on image resolution of CCD camera , discusses the measurement method of alias-distortion , and studies how to precisely evaluate the resolution of CCD camera .

在ADC这样的数据转换系统中，采样／保持电路用于处理从前置抗混叠滤波器输出的信号。

In such data conversion system as analog to digital converter , sample / hold circuit is used to deal with the output signal from anti-aliasing pre filter .

另外，针对暂态谐波问题，本文还提出了一种新的检测算法&基于抗混叠db小波滤波器的小波包谐波检测算法。

In order to detect the transient harmonic , a novel algorithm ' Wavelet packet transient harmonic detection algorithm based on anti - aliasing db wavelet filters ' is provided .

为了避免经验模式分解（EMD）过程中不同时间尺度函数间的模式混叠，采用基于高斯白噪声加入的经验模式分解方法，并将之应用于旋转机械故障诊断中。

The EMD added Gauss white noise is proposed to avoid mode mixing of different time-scale IMF , and is applied in fault diagnosis for rotating machine .