example-of-optimization

自己写的PCA降维算法，还有模糊k均值大家可以参考一下(Write their own PCA dimensionality reduction algorithm, and fuzzy k means we can refer to)

这是基于压缩感知的MP算法，经本人验证仿真，没得问题(This is based on the the compressed sensing MP algorithm, after I verify the simulation, did not have the problem)

its a ofdma simulink model. with a modulation scheme on 8psk

说明：  此程序给出信号的多分辨率分析（Multiresolution Analysis），即信号的多分辨率分解（Multiresolution Decomposition）方法及应用。该程序是一个多抽样率系统（Multirate System）举例，用M个的滤波器，将信号的频谱等分成M部分，使所得抽样频率降为1/M，然后再依据它们的“重要性”给一不同的bit数，那么所传输的bit流必然会进一步下降，起到压缩带宽的作用。(This program gives the signal of the multi-resolution analysis (Multiresolution Analysis), the multi-resolution signal decomposition (Multiresolution Decomposition) method and its application. The program is a multirate rate system (Multirate System) example, with M a filter, the signal' s frequency spectrum is divided into M parts, the proceeds of sampling frequency reduced to 1/M, then according to their &quot importance&quot to the bit of a different number, then the transmitted bit stream is bound to decline further, to play the role of bandwidth compression.)

关于非线性离散系统辨识，调试通过可以使用，各种kalman滤波器的设计。( Nonlinear discrete system identification, Debugging can be used, Various kalman filter design.)

全自由度空时自适应处理,加载数据后可以直接运行(Full freedom of space-time adaptive processing, loading data can be run directly)

source code for gausian mixture model

频率估计 1）产生一个单频实信号，加上一定信噪比的噪声。 2）对含噪声的信号进行频率估计。估计方法可以查阅相关文献。 3）统计估计出来的频率和真实频率之间的误差。 4）验证该频率估计算法在不同信噪比、不同数据长度下、不同频率时候的性能。 (Frequency estimation 1) produce a single-frequency real signal, plus a certain SNR noise. 2) noisy signal frequency estimates. Estimation method can access relevant literature. 3) out of the statistical estimation and frequency error between the true frequency. 4) Verify that the frequency estimation algorithm under different SNR, different data length, when the frequency of different properties.)

说明：  Matlab优化工具箱是最优化里的一个重要部分，最优化里MATLAB编程都要用到(Matlab optimization toolbox is optimized in an important part of the optimization to be used in MATLAB programming)

置信传播算法用于无环图时的误码率的检验。(this program is a detection of the BP algorithm error bit when it is used in cycle graphs.)