ssvep

PCA技术的一大好处是对数据进行降维的处理。我们可以对新求出的“主元”向量的重要性进行排序，根据需要取前面最重要的部分，将后面的维数省去，可以达到降维从而简化模型或是对数据进行压缩的效果。同时最大程度的保持了原有数据的信息。 (A major advantage of PCA technology is reduce the dimension of the data processing. We can calculate the new " principal component" vector order of importance, according to need to take the most important part of the front, eliminating the rear of the dimensions, dimension reduction can be achieved to simplify the model or the effect of data compression . At the same time maintaining the greatest degree of the original data.)

利用Matlab程序，绘制磁力线，采用三维作图，做出了长方体状磁体的磁力线分布(Matlab program used to draw the magnetic field lines, using three-dimensional mapping, rectangular-shaped magnets made of the distribution of magnetic field lines)

用等倾线法绘制二阶系统的相平面图 二阶系统自己拟定(Line method to draw the second-order system using equal inclination plan second-order system own prepared)

ofdm snr is designed for signals

语音方面的工具箱，里面包含了很多语音的基础函数如分帧函数等等(Voice in the toolbox, which contains a lot of voice-based functions such as sub-frame function, etc., etc.)

it is histogram matching using companding method

Memset、Memcpy、Strcpy 的作用和区别(Memset, Memcpy, Strcpy distinction between the role and)

摘要 该文主要考虑利用图像噪声再生技术来提取图像细节 其思想是利用被滤除的噪声信号进行回收再利用 通过对噪声信号和初步去噪信号进行小波变换 比较它们的小波系数 当噪声信号的小波系数达到一定的阈值时 将噪声信号的小波系数保留叠加至初步去噪信号的小波系数 然后利用传统的软阈值去噪的方法来进行图像的去噪 从而达到既能够去除噪声 又能保留图像细节的目的 实验证明 该方法较传统的方法在去噪和细节保持上有改进(Abstract In this paper, consider using images to extract the noise regeneration of its ideological image detail is the use of the noise signal was filtered to recycle through the noise signal and the initial wavelet transform de-noising signal comparison of their wavelet coefficients of the wavelet signal when the noise coefficient reaches a certain threshold will be the noise signal superimposed to the wavelet coefficients to retain the initial de-noising signal wavelet coefficients and then using the traditional soft-threshold denoising approach to image denoising in order to achieve the removal of noise can not only be able to retain The purpose of image detail that the methods of the experiment a more traditional approach to denoising and detail in there to keep improving)

给lee。用来通信仿真试验。关于信道编码和信源编码(to lee. For communications simulation. On the channel coding and source coding)

说明：  地震真振幅成像，以及射线追踪技术，外文文章，内容非常详尽(seismic true-amplitude imaging, and seismic ray tracing )