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数字通信QAM调制的MATLAB仿真程序

Computes motion vectors using Adaptive Rood Pattern Search method Based on the paper by Yao Nie

基于粒子群算法的函数求最大值的matlab程序，自己照书编写的(PSO algorithm based on the function of matlab procedures for the maximum, according to the book written their own)

基于LabView2011的自相关分析和互相关分析，测试两个信号的互相关函数和自相关函数。(Based on the autocorrelation and cross-correlation analysis LabView2011 analysis, test cross-correlation function of two signals and autocorrelation function.)

光伏电池阵列输出功率受光照强度和温度变化的影响，因此最大功率点跟踪（MPPT）技术广泛应用于光伏系统中。在所有最大功率点(MPP)控制策略中，扰动观察（P&O）MPPT算法因易实现被广泛应用，然而它的缺点是在稳定工作状态下工作点通过MPP 时会导致能量振荡损耗，并且在光照强度或温度发生突变时表现较差的动态响应。在本文中，提出一种改进型变步长扰动观察MPPT 算法，此方法依据工作点动态调整步长变化，与传统固定步长方法比较，本文提出的方法能有效地提高MPPT 速度和转换效率，通过仿真和实验结果分析，验证了此改进算法的可行性。(PV array output power by light intensity and temperature changes, so the maximum power point tracking (MPPT) technology is widely used in photovoltaic systems. In all the maximum power point (MPP) control strategy, the perturbation and observation (P & O) MPPT algorithm because easy to implement is widely used, but its disadvantage is the steady-state operating point by the MPP causes energy oscillations loss, and in the light intensity or temperature mutated poor performance dynamic response. In this paper, we propose a modified variable step size perturbation and observation MPPT algorithm, this method is based on dynamically adjusting the operating point changes in steps, with the traditional fixed-step methods, the proposed method can effectively improve the speed and efficiency MPPT, The simulation and experimental results verify the feasibility of this algorithm.)

说明：  录制一段个人的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用双线性变换法和窗函数法设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。(Record a personal voice signal, and recording the signal is sampled draw sampled speech signal time-domain waveform and frequency spectrum for a given filter performance, the bilinear transformation and design of filter window functions and draw the frequency response filter then filter of their own design collection of the signal filtering, to draw the filtered signal in time domain waveforms and frequency spectrum, and filtering the signal before and after comparison, analysis of signal changes playback audio signals Finally, a signal processing system interface design.)

压缩采样中各种贪婪算法性能的matlab仿真比较，包括LS-MP，OMP，WMP，硬阈算法。(Compression of various sampling greedy algorithm performance of matlab simulation comparison, including LS-MP, OMP, WMP, hard threshold algorithm)

说明：  遗传算法 C语言源码Denis Cormier (North Carolina State University)开发的，Sita S.Raghavan (University of North Carolina at Charlotte)修正，很实用(GA C language source code Denis Cormier (North Carolina State University) developed, Sita S. Raghavan (University of North Carolina at Charlotte) amendments, it is practical)

fitting magnetization curve

分别用LMS和RLS算法实现回音对消，并比较二者收敛性能，及不同信道参数对算法的影响(LMS and RLS algorithms were used to achieve echo cancellation, and compare the convergence performance of the two, and different channel parameters affect the algorithm)