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A QPSK simulation using simulink. very useful to understand the scheme at every level of QPSK modulation.

信号的希尔伯特-黄变换，IMF分解，对IMF进行Hilbert处理，绘制二维/三维时-频图，时间-能量图(瞬时能量谱) ，频率-能量图（希尔伯特谱）(Hilbert signals- Huang Transform, IMF decomposition of the IMF Hilbert processing, rendering 2D/3D time- frequency diagram, time- energy (instantaneous energy spectrum), the frequency- energy (Hilbert spectrum))

具有新的模拟进化优化方法的有效性和应用价值的一群算法的matlab实现(Matlab implementation of the new analog evolutionary optimization approach the effectiveness and value of a group of algorithms)

光纤LP01模式,光纤模式计算，纤芯模式，有效折射率(Fiber LP01 mode, fiber mode calculation, fiber core mode, effective refractive index)

插值计算 底质遥感反射率 水面之下遥感反射率(interp1 bottom reflectance underwater irradaince reflectance)

插值与拟合的matlab实现，自己编的5种调制信号，对信号进行频谱分析及滤波。( Interpolation and fitting matlab implementation, Own five modulation signal, The signal spectral analysis and filtering.)

说明：  matlab数学形态学处理里面，一维信号的膨胀腐蚀等没有现成的公式，编程为解决一维信号的处理问题。(inside matlab mathematical morphology, the expansion of one-dimensional signal no ready formula for corrosion, programming to address the problem of one-dimensional signal processing.)

调用MATLAB命令conv()函数，编写连续信号卷积和的通用程序sconv( )(Call the MATLAB command conv () function, the preparation of continuous signal convolution, and the general program sconv ())

一个编译logmmse的Mfile，可以音频净化，噪音处理以及噪音识别，比通常的wiener filter效果要好，而且实现时间短(logmmse implementation)

这个目标函数的最值，希望对大家有帮助！(the objective function value the most, and I hope to be helpful! Thank you)