Schmidl Cox ferr

一篇关于四桥臂有源电力滤波器关键技术研究的文章(research on the key issues of the four-leg active power filter)

迭代ACCF相参积累与参数估计,SAR回波，只加了噪声(Iterative ACCF coherent accumulation and parameter estimation)

说明：  给程序给出了功率放大器预失真过程中的时延同步问题。(This codes provides the time delay synchronization in the process of power amplifier predistortion.)

手机无线控制电脑...............(my English is poor)

随机方法构造的LDPC码，码长可变，无四环(random ldpc,code length can be changed)

说明：  半带滤波器，工作在采样率122.88Msps上(Half-band filter, working at the sampling rate of 122.88 Msps)

此代码通过随机生成二进制码，对其进行二进制差分调制，以及加入高斯白噪声后对其解调计算误码率，绘制出其输入信噪比与输出信噪比的实验曲线及理论曲线的比较。(This code generates binary codes randomly, modulates them by binary differential modulation, demodulates them with Gauss white noise and calculates the bit error rate, draws the experimental curve and theoretical curve of their input signal-to-noise ratio and output signal-to-noise ratio.)

this document present three algorithms to identify the type of modulation in digital communication.

二进制格雷码与自然二进制码的互换 它就是介绍怎么把二进制格雷码与自然二进制码的互换。主要是异或操作(itis to for 2to 2)

数字通信原理是一门学习通信原理的重要的基础课程，该ppt讲述了通信原理的基础知识，适合初学者(Principles of digital communication is an important principle of learning communication basic course, the ppt about the basic knowledge of communication principles, suitable for beginners)