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QPSK system simulation not working

will read images from a file imagelist1 and resize all of them to the size of 320 rows and 240 column.

实现图像的傅里叶高通、低通滤波.经Fourier变换后的图像，中间部分是低频部分，外边是图像的高频部分。经过低通滤波后，图像中的高频成分被滤除掉，只留下低频成分，图像的边缘部分变得比较模糊了(useful for image Fourier high-pass, low pass filter)

研究如何实现matlab和c混合编程时的接口，可以看看思路。此文为中文学习资料。(The study how to achieve matlab and c mixed programming interface, you can look at the ideas. Article for Chinese learning materials.)

说明：  运用小波包分解功能对含噪信号降噪，剔除干扰噪声，提高信号信噪比。(The function of wavelet packet decomposition is used to denoise the noisy signal, eliminate the interference noise and improve the signal-to-noise ratio.)

改变窗长的相位差离散频谱校正源程序。改变窗长的相位差校正程序，可选择矩形窗和汉宁窗。已调试通过。(Matlab Codes for phase difference correction based on different window.Rectangle and Hanning Window can be choose to act.)

国外经典教材的中文译本，清华大学黄开支翻译的。个人觉得是所见过的最经典的(Overseas Chinese translation of the classic textbook, Tsinghua University, Huang expenditure translation. Personally feel is the most classic ever seen)

RBF训练新手上手代码 RBF训练 值得参考(RBF RBF training novice to get started training worthwhile reference code)

Kalman filter examples, kalman_smoother

IIsum compute the sum of untegral image