heterodyne

仿真图是速度、距离、幅度三维图像，插值与拟合的matlab实现，计算两个矩阵之间的欧氏距离。( FIG simulation speed, distance, amplitude three-dimensional image, Interpolation and fitting matlab implementation, Calculation of the Euclidean distance between the two matrices.)

16QAM调制解调，包含QAM的调制解调Matlab程序(16QAM modem, including QAM modem matlab program)

这是一篇现代通信原理课程的作业报告.题目为几种时频分析方法比较及应用.详细介绍了短时傅里叶变换、小波变换、魏格纳—威利分布和Cohen类时频分布这4种典型时频分析方法,并作了比较(This is a modern communication Principle operating report. Entitled Comparison of several time-frequency analysis and 应用. 详细 Jieshao the short time Fourier transform, wavelet transform, Wigner- Willie distribution and frequency distribution of Cohen Lei This four kinds of typical time-frequency analysis method, and compared)

kasami序列的生成程序及相关论文，带64位的生成程序，供学习者使用。(kasami sequence generation)

说明：  利用商用WIFI和matlab对走、坐和蹲的三种数CSI 数据包进行预处理和特征提取(Commercial WIFI and matlab were used to preprocess and extract features of walking, sitting and squatting CSI packets)

基于OQPSK，高斯信道和瑞利信道的matlab仿真程序(Matlab simulation program based on OQPSK)

The HART Application Guide has been created by the HART Communication Foundation (HCF) to provide users of HART products with the information necessary to obtain the full benefits of HART digital instrumentation. The HART communication protocol is an open standard owned by the more than 100 member companies in the HCF. Products that use the HART protocol to provide both analog 4–20 mA and digital signals provide flexibility not available with any other communication technology.

说明：  A Study on OFDM Mobile Radio Transmission Scheme with Adaptive Guard Interval Length

ofdm的matlab仿真以及信道估计，瑞利多普勒信道(the matlab simulation of ofdm channel estimation, Rayleigh Doppler channel)

OFDM系统，包括系统的编码，调制，转换，发送，时间同步，频率同步(OFDM systems, including system encoding, modulation, conversion, send, time synchronization, frequency synchronization)