A modified synchronization approach by using sliding windows is proposed. The pre-processing for obtaining principal eigenvectors is a smoothing procedure for the DSSS signal.
3、提出了一种改进滑动窗的盲同步方法,该方法利用求主特征向量的过程,对扩频信号进行平滑降噪预处理,实现了较低信噪比下的码同步。
参考来源 - DSSS/BPSK信号扩频码序列估计方法研究·2,447,543篇论文数据,部分数据来源于NoteExpress
它是自然幂迭代方法的一个延伸,不仅跟踪主子空间,而且得到了主特征向量。
It is an extension of the natural power method because it is a solution to obtain the principal eigenvectors as well as to track the principal subspace.
根据3个主成分各自对应的特征向量特点,分别解释为人为因子、温度因子和降水因子并进行回归分析。
According to the corresponding eigenvectors, the 3 principal components were explained as the anthropogenic factor, the temperature factor, and the precipitation factor.
通过对图像在每个像素的邻域的基础上进行主分量分析,产生每个图像像素的特征向量,再用PCNN对得到的特征图像进行点火分割。
It presents principal component analysis on image based on neighborhood unions of per-pixel to obtain the eigenvector of per-pixel, then USES PCNN to set on fire to segment image with feature image.
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