M2_FSK_Digital_Modulation

simulating PAPR reduction with PTS method in STBC MIMO OFDM

OFDM 同步技术研究 Schmidl_Cox算法 定时估计matlab程序(OFDM the synchronization technology research S&C algorithm timing estimation)

By building the generalized Sigmoid function relationship between normalized step-size and the power of error signal, a novel variable step-size NLMS algorithm is proposed. It is proved that the step-size of NPVSS-NLMS changes as the new algorithm does when A=σv -m and B=2. The physical meanings of the parameters in this algorithm are explored. The theoretical analysis illustrate that this algorithm combine the virtues of NPVSS-NLMS and Sigmoid function, and it leads to faster convergence rate and lower final misalignment. The computer simulation results support the theoretical analysis.

说明：  这是一个通信的Nakagami算法，理论值和仿真结果全都有，希望对大家有帮助。(This is a Nakagami algorithm for communication. Both theoretical and simulation results are available. I hope it will be helpful to you all.)

说明：  一种基于独立分量分析的改进算法． 可用于瞬时混合的盲分离．(based on independent component analysis algorithm improvements. For transient mixed Blind separation.)

异步socket通信C++，对socket基础协议进行封装处理(Asynchronous socket communication C++, on the basis of protocol encapsulation process socket)

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.)

改程序为应用M语言实现对FDMA系统的设计仿真，包括发送接收端以及用户端的仿真(The program is designed to simulate the FDMA system by using M language, including sending and receiving terminal and user side simulation.)

知道完美信道状态信息与不知道信道状态信息的信道容量的对比(Know the perfect channel state information and does not know the channel state information of the channel capacity of the contrast)

说明：  使用改进的遗传算法来优化一维周期稀疏线阵(Using improved genetic algorithm to optimize one-dimensional periodic sparse linear array)