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matlab实现QPSK四相相移键控信号功率谱密度(matlab implementation QPSK quadrature phase shift keying signal power spectral density)

说明：  提出了一种综合采用ButterWorth低通滤波器和平均值低通滤 波器的低通滤波器设计新方法. (Presents a comprehensive low-pass filter and using ButterWorth average low-pass filter low-pass filter design of the new method.)

<How to Publish a Paper in the Top Journal><How to Write & Publish a Scientific Paper>两本电子书，或许对需要发论文的你有所启示(<How to Publish a Paper in the Top Journal><How to Write & Publish a Scientific Paper- Scanned> that may help you to learn something about writing a good paper)

利用MATLAB对语音信号进行数字信号处理和分析,以及合成，在MATLAB软件平台对所采集的语音信号，加快和变慢语速,同时进行一些特殊处理,如回音和变声,并进行语音的线性预测分析。(MATLAB voice signal to digital signal processing and analysis, and synthesis, in the MATLAB software platform for the acquisition of the speech signal, speed up and slow speech rate, while some special handling, such as echo and change the sound and voice linearpredictive analysis)

说明：  A New Fuzzy Fault Locator for Series Compensated Transmission Lines

《精通MATLAB最优化计算》优化的工具箱和自编函数实现双管齐下 算法原理→流程→编程→举例一杆到底 60余个程序，100余个实例一一精编精讲(" Mastering MATLAB optimization calculation optimization toolbox and self-function of the two-pronged algorithm principle → process → Programming → example one in the end more than 60 months of the program, more than 100 instances of eleven for fine Jingjiang)

《Digital and Analog Communications Systems》（《数字和模拟通信系统》）的配套MATLAB源代码，该书对数字和模拟通信系统都有讲述，偏重于数字通信系统。("Digital and Analog Communications Syste ms "(" digital and analog communications system ") supporting MATLAB source code, The book on digital and analog communications systems have talked about emphasis on digital communications systems.)

本程序特别适合于弹道计算等方面使用。比ODE45函数的速度加快了很多，且程序充分展示了Matlab向量运算的强大功能，以及编程的简单快捷。(This procedure is particularly suitable for use ballistic calculations and other aspects. ODE45 faster than a lot of functions and procedures for demonstrating the power of Matlab vector operations, and programming simple and quick.)

数模题目代码，一个简易的matlabUI动画演示程序(Modulus subject code, a simple animation demo program matlabUI)

本压缩包里面有几个月的光伏数据，文件里有几个当时计算用的几个小程序，求光伏概率分布的，(The compressed inside a few months photovoltaic data, there are several file was calculated using a few small programs, find the probability distribution of PV,)