IET_QLRSA

OPNET仿真的无线信道，OPNET仿真的无线信道

说明：  构建了基于压缩感知的信号处理系统，并用BPDN算法将频域稀疏信号恢复出来，BPDN算法与GPSR算法类似，属于基追踪算法，复杂度较高但较为精准。(A signal processing system based on compressed sensing is constructed, and bpdn algorithm is used to recover the sparse signal in frequency domain. Bpdn algorithm is similar to GPSR algorithm, which belongs to base pursuit algorithm, with higher complexity but more accurate.)

LDPC最小和译码算法，c语言实现，适合初学者(Minimum and LDPC decoding algorithm, c language, suitable for beginners)

qpsk调制 预失真仿真程序 基于matlab开发环境( LUT predistortion matlab simulation)

OFDM-QPSK系统在不同信道（AWGN、AWGN+两径衰落信道、AWGN+三径衰落信道）下的接收端误码性能(three path fading, Gauss white noise)

Nist Conceptual model for smart grid communication.

观察者模式实现各模块之间的异步通讯。模拟MFC消息(message router)

说明：  基于matlab5g工具包，进行一定修改，使得信道估计和均衡效果更好(Based MatLab 5G Toolbox, make greater result)

国家环保总局污染源在线通讯协议的简化版，主要用于环保污染监测设备的数据上传(Sources of the State Environmental Protection Administration of the simplified version of online communication protocols, mainly for environmental pollution monitoring equipment, data upload)

给出了OFDM在卫星通信中的系统框图并 在Simulink中仿真实现，利用改进的CMA恒模算法进行盲均衡处理，来去除时变卫星信道对信号的影响,基于4阶累积量的方法 将OFDM信号与其他调制类型信号区分开来(OFDM is given in the satellite communication system block diagram and Simulation in Simulink using the modified constant modulus algorithm CMA for blind equalization, to remove the time-varying satellite channel on the signals, based on 4-order cumulant method OFDM signals and other types of signal modulation to distinguish)