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模拟出一个雷达的线性调频信号的波形，给出其频谱图(Simulate a radar LFM waveform, give its spectrum)

mallab codes for marine guidance and control

惯性导航误差分析程序可以做误差曲线图像，可以模拟真实系统的误差特性(Inertial navigation error analysis program can make the error curve of the image, you can simulate the real system error characteristic)

curvelet的usfft算法，是curvelet最先采用的算法(curvelet the usfft algorithm is the first use of curvelet algorithm)

Uncertainty analysis of flood damage curves. Code for the work described by Egorova et al. in their journal paper

Calculate the least squares approximation method.

说明：  基于matlab的自适应分段阈值分割，根据直方图自动寻峰自动分割(Matlab based on adaptive sub-threshold segmentation, according to the histogram peak automatic automatic segmentation)

杨氏双缝干涉 两相干光源到接收屏上P点距离r1=(D2+(y-a/2)2)1/2, r2=(D2+(y+a/2)2)1/2, 满足相干条件的光波叠加后，对于观察屏上某一确定点，即r1、r2确定后，叠加后的光强为 式中λ为光波的波长， 、 ，令相位差φ=2π（r2-r1）/λ, 最后可得公式如下： ， 最后光强I=4I0cos2（Φ/2）。 观察相干光叠加后光强的分布. (Young' s double slit interference two coherent light source to the point P on the receiving screen distance r1 = (D2+ (YA/2) 2) 1/2, r2 = (D2+ (y+a/2) 2) 1/2, meet coherent conditions lightwave after superposition, for a determined point on the viewing screen, i.e. R1, R2 is determined, the superimposed light intensity where λ is the wavelength of light, make the phase difference φ = 2π (R2-R1)/λ, final can be obtained using the following formula: Finally, the light intensity I = 4I0cos2 (φ/2). Observed coherent superposition of light intensity distribution.)

matlab source code.....................

电磁悬浮系统电流控制平衡点线性化MATLAB仿真(Electromagnetic suspension system current control balance linearization MATLAB simulation )