xianglongyang123

vessel manuevering models

To calculate the maximum displacement in Cantilever beam. Using finite element method.

单脉冲雷达测角，方法为相位和差雷达的测角。详细内容可以下载自己看。(Monopulse radar angle measurement method for phase and differential radar goniometer. Details can download their own look.)

用matlab实现的均值滤波函数，可以有3*3,5*5等多种窗口可选(Using matlab to achieve the mean filter function, can have 3* 3,5* 5 and many other window options)

陈后金数字信号处理课件，很不错的，有助于学习(This is the ppt of digital signal processing of Chen Houjin. That is very useful for the students.)

用于计算内弹道各参数，采用经典内弹道模型。(used to calculate The interior ballistic Parameters)

三相逆变器空间矢量控制源程序，SIMULINK仿真结果显示，能够完美得到指定信号。(Three-phase inverter space vector control program SIMULINK simulation results show that perfectly specified signal.)

可以处理ECG，检测信号，该程序为MATLAB编写(Can handle the ECG, detection signal, the program is to prepare for the MATLAB)

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.)

说明：  元胞自动机在数学模型中的应用，用matlab进行模拟(Application of cellular automata in mathematical model)