ofdm-simulation

this program implement a pca_svm face recognition

采用互补序列降低ＯＦＤＭ的ＰＡＲ方法，降至３ＤＢ(lower with complementary sequences OFDM PAR method to Lateral)

说明：  MUSIC算法 DOA（Direction Of Arrival）波达方向定位技术主要有ARMA谱分析、最大似然法、熵谱分析法和特征分解法，特征分解法主要有MUSIC算法、ESPRIT算法WSF算法等。 MUSIC (Multiple Signal Classification)算法，即多信号分类算法，由Schmidt等人于1979年提出。MUSIC算法是一种基于子空间分解的算法，它利用信号子空间和噪声子空间的正交性，构建空间谱函数，通过谱峰搜索，估计信号的参数。对于声源定位来说，需要估计信号的DOA。MUSIC算法对DOA的估计有很高的分辨率，且对麦克风阵列的形状没有特殊要求，因此应用十分广泛。(DOA (direction of arrival) positioning technology mainly includes spectrum analysis, maximum likelihood method, entropy spectrum analysis method and feature decomposition method. The feature decomposition method mainly includes music algorithm, ESPRIT algorithm, algorithm, etc. Music (multiple signal classification) algorithm, namely multi signal classification algorithm, was proposed by Schmidt In 1979. MUSIC algorithm is an algorithm based on subspace decomposition. It uses the orthogonality of signal subspace and noise subspace to construct spatial spectrum function, and estimates signal parameters through spectrum peak search. For sound source localization, DOA of signal needs to be estimated. MUSIC algorithm has high resolution for DOA estimation, and has no special requirements for the shape of microphone array, so it is widely used.)

最小方差恢复算法，用于恢复图像中未知位置的点像素(Minimum variance recovery algorithm, used to restore the image point of the unknown location of the pixel)

计算区域分布指数，Moran指数，主要用于一国区域分布描述与分析(Regional distribution of index calculation)

simulink models of different types of motors

这个是matlab下时频分析中之非平稳信号的一般处理的全部代码(under Matlab is the time-frequency analysis of non-stationary signals in general will deal with all the code)

采用matlab工作环境，利用Thompson Tau进行异常值剔除(Remove outliers from data using the Thompson Tau method.)

Determine if an integer is a prime number. If not, provide the largest prime number by which the given number is divisible.

powel optimization method