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利用EM算法结合颜色直方图的目标跟踪，利用EM算法实时更新颜色直方图(Using EM algorithm combines the color histogram for target tracking, real-time updates using EM algorithm color histogram)

说明：  《MATLAB图形技术——绘图及图形用户接口》西北工业大学出版社，1999年版，周明等编著。介绍了matlab绘图方法和图形对象的特性及图形用户接口的设计技术。(MATLAB graphics- drawing and graphical user interface, Northwest Industry University Press, 1999 edition, Zhou Ming, eds. Introduced matlab drawing method and graphic object properties and the graphical user interface design.)

双载波的8psk调制，这是8p*2a的调制，所以是2^4进制；一个码元周期有8个载波周期；

船舶垂荡时的波浪力计算程序。给需要的朋友。(Ship wave force calculation procedure.If anyone need can download it. equations)

这是一个用MATLAB编的模拟一个小球的下落过程 ,很不错,希望和大家分享.(This is an addendum to the MATLAB simulation of a small ball on the whereabouts of course, very good, and he hopes to share with you.)

产生右图所示图像f1(m,n)，其中图像大小为256×256，中间亮条为128 ×32，暗处=0，亮处=100。对其进行FFT： ① 同屏显示原图f1(m,n)和FFT(f1)的幅度谱图； ② 若令f2(m,n)=（-1）m+n f1(m,n)，重复以上过程，比较二者幅度 谱的异同，简述理由； ③ 若将f2(m,n)顺时针旋转90 度得到f3(m,n)，试显示FFT(f3)的幅 度谱，并与FFT(f2)的幅度谱进行比较； ④ 若将f1(m,n) 顺时针旋转90 度得到f4(m,n)，令f5(m,n)=f1(m,n)+f4(m,n)，试显 示FFT(f5)的幅度谱，并指出其与FFT(f1)和FFT(f4)的关系； ⑤ 若令f6(m,n)=f2(m,n)+f3(m,n)，试显示FFT(f6)的幅度谱，并指出其与FFT(f2)和 FFT(f3)的关系，比较FFT(f6)和FFT(f5)的幅度谱。(Generating an image f1 (m, n) shown in the figure, wherein the image size is 256 256, the intermediate light bar 128 32 0 = dark, bright Department 100. Its FFT: ① screen display picture f1 (m, n) and the FFT (f1) of the amplitude spectrum ② If so f2 (m, n) = (-1) m+n f1 (m, n), repeat The above process, comparing the amplitude spectrum of the similarities and differences between the two, brief reasons ③ If f2 (m, n) 90 degrees clockwise to get f3 (m, n), try to display FFT (f3) the amplitude spectrum and with the FFT (f2) comparing the amplitude spectrum ④ If f1 (m, n) obtained by 90 degrees clockwise f4 (m, n), so f5 (m, n) = f1 (m, n)+f4 (m, n ), try to display FFT (f5) amplitude spectrum, and pointed out its relationship with the FFT (f1) and FFT (f4) of ⑤ If so f6 (m, n) = f2 (m, n)+f3 (m, n) and try to display the FFT (f6) amplitude spectrum, and pointed out its relationship with the FFT (f2) and FFT (f3), comparing FFT (f6) and FFT (f5) amplitude spectrum.)

This is an archive for feature extraction.

系统辨识和控制方面的程序，适用于初学者，比较好(System identification and control procedures for beginners)

双谱法时延估计算法，经过仿真验证效果很好(Dual spectroscopy delay estimation algorithm through simulation works well)

MATLAB学习教程，更快更好的学习matlab这个软件。(MATLAB tutorials, faster and better learning matlab software.)