OptiSystem_Tutorials

实现信号处理中QAM调制、过信道、解调部分。其中QAM调制部分可改符号点数，M阶数，信道加高斯白噪声、时延、多径，调制解调均有星座图。通过本代码，可学习QAM调制解调，或者通信系统的知识。(To achieve QAM modulation, signal processing over channel, a demodulation section. QAM modulation section can be changed symbolic points M order channel additive white Gaussian noise, delay, multipath, the modem has constellation diagram. QAM modulation and demodulation, or communication system knowledge through this code, you can learn.)

本程序主要是有关循环平稳特性的 是关于QPSK信号降阶处理 并利用BPSK信号进行相关的参数估计问题的 有详细的循环平稳特性的程序 及不同的平方降阶方法(This procedure is mainly reduced order processing QPSK signal and BPSK signals related to the parameter estimation problem detailed cyclostationary features program and the square of reduced-order cyclostationary characteristics)

这个matlab代码仿真了M-QAM的传输。M的取值不同，调制方式分别为4QAM，16QAM，64QAM等。传输信道为AWGN信道，能出误码率曲线。(The matlab code simulation of the M-QAM transmission. The value of M, the modulation mode of 4QAM, 16QAM, 64QAM. The transmission channel is AWGN, the BER curves.)

正弦调频信号的时域 频域 模糊度函数的设计(Time domain sinusoidal FM signal frequency-domain ambiguity function design)

多输入多输出系统不同收发天线对系统性能的影响(Multiple-input multiple-output system transceiver antenna different impact on system performance)

华为3G模块_EM770W_EM660资料和wince驱动(Huawei 3G module _ EM770W_EM660 data and WinCE driver)

说明：  求两个信号之间的相干性，输入是两个不同的信号，如eeg和semg，输出一一个相干性的值的矩阵，附带傅里叶变换和semg和eeg数据集(To find the coherence between two signals, the input is two different signals, such as EEG and sEMG, and the output is a matrix of coherence values,with Fourier transform and sEMG and EEG data set)

说明：  PEGSIS协议仿真 包含很多东西 通讯协议仿真 可用于对比 MATKLAB(PEGASIS Protocol Simulation)

说明：  qpsk信号插入导频，使用升余弦滤波器，利用导频估计信道，在simulink中仿真(inset pilot in QPSK signal, use square root raised cosine filters in simulink)

实现ls信道估计，计算误码率计算，均方误差，对比MMSE和ls两种算法(ls estimation ababababababbababababaa)