tuxiangfenkuai

利用MATLAB负折射率材料 导纳矩阵法(Negative refractive index materials using MATLAB admittance matrix)

Matlab Simulation for DS-CDMA

《数学物理方法的matlab解法与可视化》用matlab处理数学物理方法的书(《Methods of mathematical physics and visualization solution matlab》 matlab deal with methods of mathematical physics books)

通过将余弦电流脉冲分解，直观描述余弦电流脉冲分解图像(The cosine current pulses through decomposition, intuitive description of the current pulse resolution image cosine)

这是一个matlab代码，实现mfsk信号源的产生。(This is a matlab program ,it is a m file to create mfsk source.)

floyd算法计算最短路的matlab源程序(floyd calculated)

本算法用来实现图像的首数字规则特性，首数字规则在1881年就被发现，他能检测图像的所有像素点的AC系数是否符合首数字规则(The first algorithm is used to achieve image characteristic figure rule, the first rule number 1881 was found that he can detect all the pixels in the image whether the First Digital AC coefficient rules)

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.)

矩阵的LU分解、QR分解、Jordan约当标准型.matlab实现(LU decomposition of the matrix, QR decomposition, Jordan Jordan canonical form. Matlab)

ecg signal reader and identification