In distributed video coding (DVC) because the decoder cannot have access to the current frame, modeling the temporal correlation noise becomes a difficult task.
在分布式视频编码(DVC)中,由于解码端不能获取当前编码帧的信息,精确地对时域相关噪声进行建模变得更为困难。
The simulation shows the algorithm has good noise suppression effect to plus correlation noise and non-correlation noise, thus has the practical application value.
仿真结果表明,该算法对加性相干和非相关噪声都有明显的消噪效果,有一定的实际应用价值。
Through estimating the signal and noise subspaces with the eigen-decomposition of the correlation matrix, the MUSIC algorithm is used to estimate the DOAs of LFM sources.
通过对相关矩阵进行特征值分解,估计信号子空间和噪声子空间,并利用MU S IC算法估计宽带LF M信号的波达方向。
A modified ULV updating algorithm. is applied to performing noise subspace tracking. The algorithm does not require rank estimation of the correlation matrix, and estimate directly the noise subspace.
使用一种修改的ULV更新算法进行噪声子空间跟踪,该算法不需要相关矩阵的秩估计,直接估计噪声子空间。
The spectral correlation of stationary noise and interference is identically zero.
平稳的噪声和干扰的谱相关为零。
These characteristics of spectral correlation can be used to classify modulated signals, even when the signals are buried in noise.
利用谱相关函数的这些性质可以识别出噪声中的调制信号。
Correlation properties of sine plus noise compound FM radar signal are studied and the special anti-interference performance of the radar system is presented.
本文研究正弦加噪声复合调频雷达信号的相关特性,并指出这种体制具有独特的抗干扰性能。
By means of the principle of correlation analysis, this paper introduces an approximate method for estimating signal-to-noise ratio on random noise background.
本文利用相关分析的原理,提出一种在随机噪音的背景上估算信噪比的近似方法。
The group decision algorithm based on GLRT principle was utilized to estimate correlation template through all data frames in detection window and could offer better noise suppression.
分组判决算法利用检测窗内所有数据帧,在广义似然比准则下对相关模板进行联合估计,进一步压制了模板噪声。
According as principal of cross-correlation, the hardware circuit is used to restrain noise efficiently and acquire faint change of crack signal.
根据互相关原理,设计了相应的硬件相关电路,有效的抑制了噪声并能够提取缺陷信号的微小变化量。
A new structure damage indicator was expatiated which was obtained through calculating the correlation function of structure response under white noise.
阐述了一种新型结构损伤指数,该指数通过计算白噪声激励下结构响应的相关函数得到。
Based on the Gaussian signal detection principle under Gaussian noise, the correlation detection is analyzed in theory.
从高斯噪声中高斯信号的检测原理出发,对相关性检测器进行了理论分析。
Since the downward conversion photon pairs have strong correlation in time, they can be used for noise - free optical communication.
由于下转换光子对具有很强的时间相关性,可用来进行无噪声的光通讯。
In a low light level wavefront sensor with image intensifier, the random noise of CCD output image is inhibited by delay correlation algorithm.
在带像增强器的微光波前传感器中,采用延时相关算法抑制CCD输出图像的随机噪声。
The barrier fluctuation is characterized by Gaussian colored noise with exponential correlation.
势垒的涨落由指数关联的高斯色噪声描述。
The paper design a driving circuit of high speed linear CCD, and adopt correlation double sampling method to decrease the noise.
本论文设计了高速线阵CCD的驱动电路,并采用相关双取样的方法消除噪声。
The experiment results show that the correlation detection method can distinguish the system's noise and the detected fluorescence signal clearly, and the system is feasible.
实验结果表明,该相关检测方法能很好的区分系统的噪声信号和所探测的荧光信号,整个系统具有良好的可行性。
Based on the propagator method, noise correlation matrix is constructed by array signals and a fast TCT focusing matrix is developed.
该方法基于传播算子思想,直接利用阵列接收信号估计噪声相关矩阵,得到一种快速TCT聚焦矩阵。
Furthermore, initial neighborhood radius was computed by the estimated noise level based on the G-P saturation correlation dimension method.
初始领域半径的选取采用了基于G - P关联维法的噪声水平的初始估计方法。
The relationship between the properties of double singularities, noise correlation time and dissipative parameter and their effects on entropy flux and entropy production are discussed.
分析(非平衡约束下)所引入的奇异性强度参数、噪声相关时间与耗散参数的相互作用以及对熵流、熵产生的显著影响。
Impulse noises are often encountered in image acquisition and communication. We present an impulse noise removal method using long range correlation.
针对图像采集与通信过程中经常遇到的脉冲噪声问题,提出基于远程相关性的脉冲噪声消除方法。
The algorithm mainly controls the size of the smoothing area and the mean variance threshold to select the maximum correlation area containing minimum noise interference.
该算法主要通过控制平滑区域大小和均方差阈值来选择受噪声干扰最小和最大相关区域。
The noise correlation matrixes of two linked two-port networks were also gotten from basic definitions.
并推导了两个二端口网络的级联和并联后的噪声相关矩阵。
The results demonstrate the cross correlation filter not only can suppress random noise in GPR signal but also confirm exactly the onset of reflection wave.
结果表明:应用该文所介绍的处理方法不但能有效压制探地雷达信号中的随机干扰而且能精确确定反射波的起跳点。
Effect of the noise correlation time on the stationary probability distribution is opposite to the noise strength.
得到噪声关联时间对电流定态几率分布函数曲线的影响与噪声强度的影响相反。
Using correlation means in testing phase response can reduce random noise and improve precision of phase test.
用相关法进行相频特性的测试,可以有效抑制随机噪声的干扰,提高相位测量的精度。
From the correlation dimension analysis of noise signals of internal combustion engine, it was proved that engine noise signals have an obvious fractal characteristic.
通过对实际测量的内燃机噪声信号的关联维数计算分析,证明了内燃机噪声信号的分形特性。
The influence of noise on the computational precision of correlation dimension is discussed, and iterative singular value decomposition for reducing noise is introduced.
同时研究了噪声对关联维数计算结果的影响,并提出用采样迭代奇异值降噪算法对原始数据进行降噪处理。
After correlation detection step, noise pixels in the image sequences are almost suppressed, and only target pixels and a few clutter pixels can pass the detection threshold.
经过相关检测后,图像序列中的噪声几乎完全被门限所抑制,只有极少数噪声像素、全部目标像素和一小部分杂波像素可以通过相关检测门限。
By using the fast Fourier transform and optimized filter, the impact of image noise has been reduced, so we can estimate the correlation peak fast and accurate.
通过采取快速傅立叶变换以及优化滤波减弱了图像噪声对相关波峰的影响,能快速、准确、实时的对相关点进行定位。
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