vector-xiansi

科斯塔斯环载波恢复，用来跟踪输入信号的载波频率(carrier recovery by costas loop)

DES function for the encryption of DES,use matlab to make it possible,first input in the function is plaintext ,second one is key,and last is to choose encrypt or decrypt

是一种双隐层反向传播神经网络，Relief计算分类权重，通过虚拟阵元进行DOA估计，虚拟力的无线传感网络覆盖，分析了该信号的时域、频域、倒谱，循环谱等,在matlab R2009b调试通过。( Is a two hidden layer back propagation neural network, Relief computing classification weight, Conducted through virtual array DOA estimation, Virtual power wireless sensor network coverage, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. In matlab R2009b debugging through.)

首先介绍了辐射状配电网三相潮流计算方法，对几种常用的配电网潮流计算方法进行了对比分析，着重介绍了配电网潮流计算中常用的前推回代法的基本原理，并利用Matlab仿真软件编写了相应的潮流计算程序，通过33母线系统对计算程序进行了仿真验证。然后介绍了含弱环网的配电网潮流计算的处理方法，编写了相应的仿真计算程序，并通过算例仿真予以验证。接着介绍了分布式电源并网的几种接口模型以及分布式电源在潮流计算中的数学模型，分析了在潮流计算过程中PQ、PV、PI节点的处理方法，特别是对PV节点的处理方法进行了详细的介绍。最后针对不同分布式电源并网的状况分为四种方案进行了仿真测试，验证了本文所编写的潮流计算方法在处理计及分布式电源的配电网三相潮流的正确性。(First introduced the radial distribution network three phase power flow calculation method for several common distribution power flow calculation methods were compared, highlighting distribution power flow calculation of the basic principles of common forward and backward substitution method, and the use of Matlab simulation software written in the corresponding flow calculation program, through the system bus 33 to a simulation calculation program. Then introduces the method of treating a distribution power flow calculation weak ring, write the corresponding simulation program and simulation to be verified by an example. Then interface model introduces several distributed power grid and distributed power flow calculation in mathematical models, analyzes the trends in the calculation process PQ, PV, PI node processing method, especially for PV node approach a detailed description. Finally different distributed power grid situation is divided into four scenarios simulation test to verif)

本代码详细说明了在matlab中,如何求解各种数学中的算法问题,方便了科研人员的使用.(Detailed description of the code in matlab, how to solve mathematical problems in the algorithm and make it easier for researchers to use.)

这是压缩感知领域，一个重构算法--子空间追踪方法，此方法是基于OMP之后的改进算法。(This is a compressed sensing area, a reconstruction algorithm- subspace tracking methods, this method is based on the OMP after the improved algorithm.)

声纳技术 常规的波束形成 信号形式：实信号,f0=1.5kHz，fs=15kHz 与带通采样等效。 统计方位估计性能与信噪比之间的关系，snr=0:30(Sonar technology)

数字信号处理，包括FFT变换、Z变换、滤波器等的matlab实现(Digital signal processing, including FFT, Z-transform, filters, etc. matlab implementation)

Matlab 的支持向量机的工具箱 Matlab 的支持向量机的工具箱(Matlab SVM Matlab Toolbox SVM Toolbox)

EMD工具箱，里面有EMD变换工具箱及工具箱安装的具体操作(EMD toolbox, there are specific to the operation of the EMD transform and the installation of the toolbox toolbox)