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说明：  ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列 的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods 。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits． Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix— based algorithm has less complexity and less precision。and that the training sequence—based algorithm has better estimation performance at the cost of transmission efficiency．)

说明：  均匀平面天线阵列的三维极化方向图，matlab语言。(Antenna Polarization for Uniform Planar Array)

低通滤波器，低通滤波器 低通滤波器 低通滤波器 低通滤波器 (low-pass filter, Low-pass filter l ow-pass filter l ow-pass filter l ow-pass filter low-pass filter)

说明：  基于matlab平台的模拟ADS-B数据的解码过程(Decoding process of simulated ADS-B data based on matlab platform)

使用Matlab计算信源熵，利用信息论与编码所学知识完成实验(Using Matlab to compute source entropy)

通过单片机读取sht3x高精度温湿度传感器程序(Read sht3x high precision temperature and humidity sensor program through MCU)

Wireless Sensor Network (WSN) Platforms

为评估TD_SCDMA下行链路联合检测接收机的性能，使用MATLAB软件进行链路仿真，本程序主要是实现用户QPSK基带调制、扩频、加扰、形成时隙、形成子帧、以及进行脉冲形成滤波，通过加性高斯白噪声信道和瑞利衰落多径信道，信道估计、联合检测等几个主要过程，整个仿真都是在基带进行的。(Link simulation to assess the performance of the TD_SCDMA Downlink joint detection receiver using MATLAB software, this program is the main user QPSK baseband modulation, spreading, scrambling to form a slot to form a sub-frame, as well as for pulse formation filter, through an additive white Gaussian noise channels and Rayleigh fading multipath channel, channel estimation, the joint detection of several major process, the entire simulation in the baseband)

说明：  qpsk基带调制和解调matlab程序，包括gardner位同步(qpsk modulate and demodulate in baseband use matlab code,including gardner time synchronization)

一个可以用语音modem录音放音的Delphi控件源码(A modem with voice recording playback control of Delphi source code)