PosVelToKepler.m

potential field method

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.)

这是我自己编写的一段VDkalman程序，对于研究雷达目标跟踪的朋友应该有点帮助，愿意分享。(This is what I have written for some VDkalman procedures, the study of radar target tracking should be a little friend to help, willing to share.)

MATLAB初学者使用教程，共4部分。第1章概述1.rar第2章语法.rar第3章SIMULINK.rar第4章建模.rar(MATLAB Tutorial for beginners to use, a total of 4 parts. Chapter 1 outlines the 1.rar Chapter 2 grammar. Rar Chapter 3 SIMULINK.rar Chapter 4 Modeling. Rar)

this code reduce the dimentional of feature space using combine sparse matrix+PCA for classification eeg signal. more detail exixst inside the code. this code tested and work properly

此例程是matlab6.5辅助小波分析与应用例程书中的例程，希望对您有用(This routine is matlab6.5 auxiliary routines and application of wavelet analysis of the routine book, I hope useful for you)

Fading envelope simulator

自适应滤波器LMS算法的误差曲线和误差平方曲线，并在等高线上绘出LMS100次迭代的平均轨迹曲线，配合数字信号处理2课程的学习(LMS adaptive filter algorithm and error squared error curve curve and contour line drawing LMS100 iterations the average trajectory curve, with 2 digital signal processing courses)

network security algorithm ceasar cipher codes, simple implementation

Experiments on effects of synchonization errors in OFDM receivers