射线追踪法

用 MATLAB 对基带数字通信系统进行仿真。整 个系统模拟了发送和接收的全过程。其中调制部分采用 16QAM，并且采用基带传输(Using MATLAB for baseband digital communication system simulation. The system simulates the entire process of sending and receiving. Where the modulation part is 16QAM, and using the base band transmission)

PAPR抑制主要有SLM,PTS以及限幅法，主要对限幅法进行仿真，对比不同限幅阈值的限幅效果(PAPR suppression mainly includes SLM, PTS and amplitude limiting method. It mainly simulates the amplitude limiting method and compares the amplitude limiting effect of different amplitude limiting threshold.)

OFDM中降低峰均比的方法，将传统的SLM法，改进的SLM法和限幅加改进SLM法进行比较(Compare OFDM PAPR reducing methods in the traditional SLM method, improved SLM method and limiter plus improved SLM method)

说明：  关于polar code的信息，我认为非常有用。这不是我写的(As for the information of polar code, I think it is very useful. It is not written by me)

在matlab环境下实现通信系统中的BPSK，QPSK，16QAM，调制。成型滤波和匹配滤波都采用根升余弦函数。(In the matlab environment to achieve communication system BPSK, QPSK, 16QAM, modulation. Shaping filter and matched filter are used root raised cosine function. )

仿真实现了关于认知无线电中合作频谱检测的性能分析(Simulation to achieve the performance of cooperative spectrum sensing in cognitive radio)

一篇西安电子科技大学的博士论文《LTE中MIMO_OFDM系统物理层关键技术研究》，作者李文刚，关键词：多入多出 多用户 MIMO 空时编码 功率分配 波束赋形(Xidian University, a doctoral thesis " LTE physical layer system in MIMO_OFDM key technologies" , author Liwen Gang, Keywords: Multiple Input Multiple Output Multi-user MIMO space-time coding beamforming power allocation)

Two different types of measurement matrices: predefined and random measurement matrices were studied and tested using MATLAB. The speech signal was reconstructed without losing important information in order to achieve an increase in the data rates. After multiple simulations

help you to learn use VB cominacate to outher maine

包含对gpib通讯的一些操作，类中包括对安捷伦数字万用表的基本操作，对固纬程控电源的基本操作和程控变阻箱的基本操作(Contains some operations for GPIB Communications,Class includes the basic operation of Agilent digital multimeter, weft fixing programmable power supply and programmable resistance box.)