signals-modulation-recognition

RA 码及其在通信系统中的应用研究确良：重复累积码；简化译码算法；高斯估计；比特交织编码调制；光纤通 信；码率兼容码；Turbo 码交织器(RA Code and Its Application in Communication System does good: repeat accumulate codes simplify the decoding algorithm Gaussian estimation Bit-Interleaved Coded Modulation optical fiber communication rate compatible code Turbo Code Interleaver)

赖斯分别图图形及用MATLAB实现实现的程序代码，运行过，效果很好。(Rice, MATLAB implementation plan)

说明：  AR谱估计算法的matlab仿真，包括Yule-Walker方法、协方差方法、修正协方差方法和burg递推法等(AR spectral estimation algorithm matlab simulation, including the Yule-Walker method, covariance method, modified covariance method and the recursive law burg)

卡尔曼滤波器的编码程序，基础程序可以好好学习下，希望有帮助！(Kalman filter coding procedures, based on the program can learn under, want to help!)

利用遗传算法来优化BP神经网络来对神经网络进行训练，以现场实际采集的数据为训练样本，使得训练后的网络可以用来预测下一卷铝板轧制的轧制力(Genetic algorithm to optimize BP neural network to train the neural network, the actual collection of data for on-site training sample, so that the network can be used to predict the next roll of aluminum plate rolling rolling force training)

The m-file contends the matlab code for the class of linkedlist, a classic kind of data structure. OOP is an important and brandnew characteristic of the matlab language, which is embodied in the m-file.

说明：  此为C++环境下的LDPC编译码的完整的源代码。常用于通信系统的编译码仿真过程。有助于各种项目的完成。(This is the C++ environment LDPC coding and decoding of the complete source code. Commonly used in the encoding and decoding communication system simulation. Contribute to the completion of various projects.)

使用MATLAB从你的iPhone或iPad上的内置传感器采集传感器数据(Use MATLAB to acquire sensor data from built-in sensors on your iPhone or iPad. )

An ad-hoc network with a sender, a destination and a third station act- ing as a relay is analysed. The channels are modelled containing thermal noise, Rayleigh fading and path loss. Di® erent combining methods and di- versity protocols are compared. The amplify and forward protocol shows a better performance than the decode and forward protocol, unless an error correcting code is simulated. To combine the incoming signals the chan- nel quality should be estimated as well as possible. Information about the average quality shows nice bene¯ ts, and a rough approximation about the variation of the channel quality increases the performance even more. What- ever combination of diversity protocol and combining method is used second level diversity is observed. The relative distances between the relay and the stations has a large e® ect on the performance.

基于MATLAB的QPSK数字调制与解调的仿真(QPSKSimulation)