gray-relational-analysis-matlab

说明：  如何利用Matlab创建Quartus波形仿真文件，很详细(How to use Matlab to create Quartus simulation waveform files, very detailed)

认知无线电 提高频谱利用率 OR融合准则(OR fusion rule of cognitive radio spectrum efficiency)

MATLAB语言常用算法程序集，内含有基本常用的matlab算法，包括插值、函数逼近、矩阵特征值计算、数值微分、数值积分、方程求根、非线性方程组求解、解线性方程组的直接法和迭代法、随机数生成、特殊函数计算、常微分方程的初值问题、偏微分方程的数值解法、数据统计与分析等方面的代码。(MATLAB language commonly used algorithm for assembly, containing basic common matlab algorithms, including interpolation, function approximation, eigenvalue calculations, numerical differentiation, numerical integration equation Root, nonlinear equations, direct method and solution of linear equations iterative method, random number generation, special function calculation, the initial value problems of ordinary differential equations, numerical solution of partial differential equations, statistics and analysis and other aspects of the code.)

此为matlab的代码。包括数值o45算法及o23算法(This is the matlab code. Including numerical o45 and o23 algorithm algorithm)

说明：  关于正交信号中，复数的意义，其实复数是有实际意义的！(On the quadrature signal, the plural meaning, in fact, there is a complex meaningful!)

正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。(Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc)

MATLAB Simulations for Radar Systems Design，此书附带源程序 (MATLAB Simulations for Radar Systems Design, the book attached to source)

三分之一倍频程表示的短时傅里叶变换，需要时域分析工具箱(One-third octave express the short-time Fourier transform, the need for time-domain analysis toolbox)

用智能算法的粒子群算法进行压缩感知稀疏信号的重构(PSO is used for signal reconstruction)

说明：  这是一个有关频谱分析的程序，可实时的画出任意信号的频谱，通过测试程序无误，欢迎下载(This is a spectrum analysis procedure can draw an arbitrary signal in real-time spectrum, through the test procedure correctly, please download the)