QPSK

Kernel Local Fisher Discriminant Analysis for Supervised Dimensionality Reduction

说明：  用matlab做数字滤波器 对滤波因子加窗函数fir滤波因子的设计(Add to the filter window function fir filter design)

模拟退火算法，模拟退火算法来源于固体退火原理，将固体加温至充分高，再让其徐徐冷却，加温时，固体内部粒子随温升变为无序状，内能增大，而徐徐冷却时粒子渐趋有序，在每个温度都达到平衡态，最后在常温时达到基态，内能减为最小。(Simulated annealing algorithm, simulated annealing algorithm derived from the principle of solid annealing, heating the solid to the full high, let it slowly cooling, heating, the solid particles with the internal temperature rise to disorder symptoms, which can be increased, and slowly gradually cooling particles in an orderly manner, at each temperature to reach equilibrium, and finally at room temperature reaches the ground state, which can be reduced to a minimum.)

用MATLAB 编写的 ADPCM 编解码器(MATLAB prepared ADPCM codec)

本程序主要分析了三种调制方式对放大器非线性的敏感度，从中得出结论，APSK信号最佳。(the procedures of the three main methods of modulation of the nonlinear amplifier sensitivity, draw conclusions, APSK best signal.)

幅频键控ASK的相干调制解调以及非相干调制解调的仿真实现，源代码中作了详细的备注，通过学习该代码能够对ASK的调制解调有更加深入的认识(Coherent amplitude and frequency shift keying ASK modulation and demodulation, and non-coherent modulation and demodulation simulation, source code made detailed notes, by learning the code to the ASK modulation and demodulation of a more in-depth understanding of)

直驱风力发电的matlab仿真模型，仿真通过，可以使用(Direct-drive wind power matlab simulation model, through simulation, you can use)

MATLAB实用教程——高级编程技术（非常实用）(MATLAB practical tutorial- advanced programming techniques (very useful))

单载波频分多址的研究，可以降低单载波的峰值平均功率比(Single-carrier frequency division multiple access research, can reduce the peak single-carrier average power ratio)

用matlab实现QPSK调制，各路信号的频谱，高斯白噪声信道(QPSK modulation to achieve with matlab, and the brightest signal of the spectrum, white Gaussian noise channel)