A new time and frequency synchronization method based on frequency domain correlation for an Orthogonal frequency Division Multiplexing (OFDM) system is presented.
该文根据频域相关的原理，提出了一种新的用于无线移动信道下的正交频分复用(OFDM)系统的时频同步算法。
The algorithm USES the channel correlation in the frequency domain to greatly reduce the computation complexity and the number of required samples.
利用信道频率相关特性降低了算法复杂度，同时解决了算法对样本数的依赖问题。
The correlation of adjacent slices bitrates in frequency domain can effectively reflect the activity of the motion pictures.
此判别法表明，相邻编码帧宏块条码率的频域互相关能够有效反映图像活动性变化的特点。
In our paper, we propose a novel frequency domain embedding algorithm based on the correlation analysis, which can solve effectively to hide the secret information of large capacity.
本文以内容相关性为基础，提出一种新的基于相关性分析的频率域嵌入算法，以解决信息隐藏中由于秘密信息容量大而无法有效操作的问题。
First, the range shift is estimated according to the derived frequency-domain expression of the correlation function.
首先，根据所导出的相关函数的频域表达式估算出回波的距离平移量。
To resolve the problems existed in the estimation of motion in video sequences, a novel method combining gray projection in spatial domain and phase correlation in frequency domain is proposed.
针对视频图像运动检测问题，提出一种空域灰度投影和频域相位相关相结合的亚像素配准方法。
For low frequency fusion, it is used to combine with bases on domain pixel correlation and regional variance.
对于低频融合，采用了基于领域像素相关和基于区域方差相结合的融合策略。
At the same time, the channel estimation error, caused by the spectral leakage of DFT, can be reduced by canceling the auto-correlation error of the time-domain sequence of frequency-domain pilots.
同时，通过消除频域导频时域序列的自相关误差，能有效降低由DFT谱泄漏导致的信道估计误差。
The experiments results indicate that, the correlation between the statistical characteristics in the frequency domain and the sizes of JPEG images exists;
实验结果表明，JPEG图像频域统计特性与其文件大小之间具有相关性；
The experiments results indicate that, the correlation between the statistical characteristics in the frequency domain and the sizes of JPEG images exists;
实验结果表明，JPEG图像频域统计特性与其文件大小之间具有相关性；
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