QPSK定时同步代码，采用Gardner定时同步算法 qpsk_demod

说明：  MANET routing model with DSR

说明：  详尽描述了3GPP LTE环境中小区间资源分配仿真的全过程，有蜂窝小区的模拟方法和资源调度的算法，还有性能仿真的曲线图(3GPP LTE detailed description of the allocation of resources between the environment small and medium-sized simulation of the entire process, and the simulation of Cellular and resource scheduling algorithm, as well as the curve of performance simulation)

TD-SCDMA物理层原理，了解物理层技术，了解信道编码的基本原理。(TD-SCDMA Physical Layer Principle)

In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. Frame synchronization is an essential procedure for normal operation of the OFDM system because of sensitivity to synchronization errors. And when there are frequency offsets in OFDM frame, the loss of orthogonality occurs and the interference problem among several subcarriers is introduced. These fact leads to the requirement for joint implementation of the frame synchronization and frequency offset compensation.

说明：  简单实现基于各种加权分数傅里叶变换的混合载波系统(Simple implementation of hybrid carrier system based on various weighted fractional Fourier transform)

信号处理、检测。CHAP全称是PPP（点对点协议）询问握手认证协议 （Challenge Handshake Authentication Protocol）。(Noise, signal processing, detection, waveform. The full name of CHAP is PPP (Point-to-Point Protocol) Challenge Handshake Authentication Protocol.)

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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)

说明：  QT编写的CAN通讯源代码文件，通讯盒子用的是珠海芯创的can盒(The source code file of CAN communication written by QT. The communication box is the can box of Zhuhai Xinchuang.)

说明：  该MATLAB用以计算LTE下行业务数据在高斯信道下QPSK的误码率(The MATLAB is used to calculate the error rate of QPSK of LTE downlink data in Gaussian channel)