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仿真一个从卫星到区域数据中心的下行链路（由一组6个载波构成），评估热噪声，交调（IM）失真、由滤波器引起的码间干扰（ISI）以及临频干扰对下行链路性能的影响。(Simulation of a regional data center from the satellite to the downlink (from a group of six carrier composition) to assess the thermal noise, intermodulation (IM) distortion, caused by the filter ISI (ISI) and adjacent channel interference on the downlink link performance.)

演示如何在matlab中实现TCP/IP的功能，很详细。(demonstrate how to implement the tcp/ip stack.)

一种非常实用的识别数字的matlab程序，内有使用说明(the code can be used to recognition numbers)

sequential detection

it is used for the recovering speech from noise

测试陀螺仪随温度变化的特性，这是一个温箱测试的matlab处理程序！(Test gyroscope characteristics change with temperature, which is a warm-box testing matlab handler!)

Linear discriminant analysis (LDA) and the related Fisher s linear discriminant are methods used in statistics, pattern recognition and machine learning to find a linear combination of features which characterizes or separates two or more classes of objects or events. The resulting combination may be used as a linear classifier, or, more commonly, for dimensionality reduction before later classification.

动态因子模型，该模型可以有效对高维数据进行降维，将成百上千的数据信息浓缩在几个因子里面，即从一国许多经济时间序列数据中估计和解释驱动各变量波动的共同动态因子。 MATLAB代码(dynamic factor model, the model can be effective for high-dimensional data dimension reduction, condensed the hundreds of thousands of data in several factors, that is, from a country many economic time series data in the estimation and explain the common dynamic factors drive the variable volatility.MATLABcode)

本资源是现代数字信号处理理论及算法（何子述版）的作业仿真第四章的代码(This resource is the code of the fourth chapter of operational simulation of modern digital signal processing theory and algorithm (He Zishu Edition).)

本书将通信技术处理技术用代码的形式表现出来，这样可以通过代码来加深对理论知识的理解。(This book will use communication technology processing code forms, and so can the code to deepen the understanding of theoretical knowledge.)