1572-Introduction-to-Using-OPNET-Modeler-Network-

基于MATLAB用窗函数设计FIR滤波器，并验证滤波效果(Design FIR filter based on MATLAB with window function and verify filter effect)

OFDM信道的参数估计模拟。QDPSK调制，采用训练信号。(OFDM channel estimation simulation.)

matlab中fsk调制与解解调解调方式有相干与非相干解调哟 (matlab fsk modulation and the solution demodulation Demodulation coherent and incoherent demodulation yo)

BER of SIC receiver used in CDMA

水下扩频系统研究，本系统采用直接扩频序列方式，在有多径水声信道和无多径的水声信道进行研究比较(Underwater spread spectrum system, the system uses direct sequence spread-spectrum approach, in a number of Acoustic Channel Drive and non-multi-path acoustic channel for the study of comparative)

本程序利用改进的CHOW算法，仿真了自自适应OFDM系统的性能，并画出了SNR (This program makes use of improved CHOW algorithm simulates the performance of self-adaptive OFDM system, and draw the SNR)

完整的qpsk通信系统，包括发送端，接收端，在不同的信道模型下的仿真：awgn，rayleigh。包括各种眼图，星座图，基带波形，载波波形。(Complete the qpsk communication system, including the sender, the receiver in a different channel model Simulation: awgn, and Rayleigh. Including a variety of eye diagram, constellation, waveform baseband carrier waveform.)

通过串口解析MODBUS协议 读开关量型的输入信号 读保持寄存器上的内容 批量写数据到保持寄存器(Resolving MODBUS Protocol through Serial Port Input signal of reading switch type Read and hold registers Write data in batches to hold registers)

LDPC codes 4girth check

simulink for BPSK modulation