PnGen

matlab实现16QAM调制解调 matlab实现16QAM调制解调(ALLIANCES is a recently proposed cooperative random access protocol for wireless networks. In this paper we modify the original model to include user location information. We also derive pair-wise error probability (PEP) under Rayleigh flat fading channel and a power-law attenuation environment. Based on the PEP analysis we propose an optimal relay selection scheme, which achieves significant throughput gains as compared to the random relay selection scheme in the original ALLIANCES.)

matlab code for multipath rayleigh fading

说明：  可以识别电子文档,图片和手写的英文字母,用MatLAB打开即可(It can recognize electronic documents, pictures and handwritten English letters. It can be opened with MatLAB.)

matlab开发的地震数据的波形图绘制程序，能够直接使用，操作方便(matlab drawing development process of seismic waveforms)

介绍了跳频扩频通信系统的原理。应用matlab语言防真和分析了一个1个频点的跳频通信系统的扩频通信过程；防真和分析了2个跳频信号跳频点的变化情况。(introduced a frequency-hopping spread spectrum communication systems theory. Application of Matlab language and the defense really an analysis of a frequency hopping spread spectrum communication systems communication process; Defense and analysis of the true two-frequency point of the changes.)

this matlab is used widely there

Matlab book Engineering Matlab Programming Engineering Matlab Programming

说明：  6QAM通过带限信道，设码元速率为1000波特，传输信道特性为滚降系数为0.75的滚升余弦频谱的滤波器，试建立测试模型并观察接收信号（等效基带信号）的眼图、星座图和相位转移轨迹图。simulink模型(6QAM through the band-limited channel, located at 1000 baud symbol rate, the transmission channel characteristics for the roll-off factor of 0.75 of spectrum raised cosine filter roll and try to create a test model and observe the received signal (the equivalent baseband signal) of the eye diagram, constellation and phase transfer trajectories. simulink model)

Modern instrumentation in nuclear

覆盖保存是WSN的一个基本质量要求。选择一个最佳的簇头，以满足长时间的监视区域的完全覆盖。使用覆盖意识的方法来选择簇头，而不是基于能量的方法，可以增加场景有效时间。(WSN coverage preservation is a basic quality requirements. Choose one of the best cluster head in order to meet long surveillance area completely covered. Awareness of the methods used to select the cover cluster head, rather than energy-based method, can increase the effective time of the scene.)