s4m

采用16QAM调制方式对一串二进制信息进行基带调制，并分析其功率谱，在AWGN信道上进行传输，并解调，最后对其误比特（BER）性能加以分析。(Using 16QAM modulation methods on a string of binary information in the baseband modulation, and analyze the power spectrum, in the AWGN channel for transmission, and demodulation, the last of its bit error (BER) performance analysis.)

这是一本有关MATLAB的参考书，适合于使用MATLAB或正在打算使用MATLAB的读者。本书另辟蹊径可以借助或不借助MATLAB随带的文档资料让读者自学MATLAB。书中口语化的风格,使读者易于阅读。如书名所示,本书提供了读者精通MATLAB所需的工具。作为编程语言和可视化工具,MATLAB具有丰富的一系列功能,可解决工程、科学计算和数学学科中许多问题。本书的基本目的是通过向读者展示如何有效地使用这些功能来帮助读者增强工作能力!(This is a reference book about MATLAB, suitable for use or are planning to use MATLAB MATLAB readers. This book can open a new path with or without the help of MATLAB documentation that comes with the reader learning MATLAB. Colloquial style of the book, the reader easy to read. Such as the title indicates, this book offers readers the tools needed to master MATLAB. As a programming language and visualization tools, MATLAB has a rich range of functions, solve engineering, scientific computing and mathematical disciplines, many of the problems. The basic purpose of this book by showing readers how to effectively use these features to help readers enhance the ability to work!)

OSTBC 准正交空时分组码多天线系统，QPSK，QAM调制的误码率比较

说明：  this is matlab pid tuning code

快速中值滤波，在大数据量的情况下速度很快，论文“Median Filter in Constant Time”的C语言实现(C souce code for "Median Filter in Constant Time")

Entropy calculation of a file

说明：  某城市的温度用matlab 的分析事例===数据分析的解析的结果(the temperature of a city using Matlab === examples of the analytical data analysis results)

matlab 分形hilbert曲线 复数向量编码，编码简短精炼，很值得学习。 (matlab fractal hilbert curve complex vector, coding short refining, it is worth learning.)

Tutorial and multiple Simulink examples regarding the integration of m-Files into Simulink models.

跳频系统的仿真,适合于初学者，算法还算清晰，还不错，希望对你有用(Simulation frequency hopping systems, suitable for beginners, the algorithm is fairly clear, well, I hope useful to you)