OFDM_channelEstimation

说明：  QPSK通信调治与解调DSP开发C++代码，可以在TI DSP上实现(QPSK modulation and demodulation communications DSP development of C code can achieve TI DSP)

欧洲标准DVB-S2的LDPC编码的实现代码(European standard DVB-S2 LDPC encoding implementation code)

多用户检测算法的比较，包括解相关、MMSE、SIC、PIC(Multi-user detection algorithm, including the decorrelating, MMSE, SIC, PIC)

一个DQPSK信号接收与发送部分的软硬件设计。其中IF=70MHZ，信息速率=10MBS，采用带通信号采样技术，数字正交解调和调制技术。NCO频率分辨率为32位，相位分辨率为10位(A DQPSK signal reception and transmission part of the software and hardware design. Which IF = 70MHZ, information rate = 10MBS, the use of bandpass sampling technique, the digital quadrature demodulation and modulation techniques. NCO frequency resolution of 32, phase resolution of 10)

说明：  卡尔曼滤波，对一个做匀加速直线运动的目标进行跟踪，跟踪效果较好(Kalman filtering, do a linear motion with constant acceleration target tracking, track better)

电力系统14节点模型，用于计算电力系统潮流计算(Power System 14 node model, used to calculate the power flow calculation)

关于FASTICA算法的完整应用程序，其中有图像版(FastICA algorithm on a complete application, which has the image version)

LTE的系统级仿真平台的搭建，包含每个模块，以及每个模块如何使用，都有介绍，里面还包含两个pdf文档(LTE System Level Simulator Documentation,This document contains documentation on how to use the Long Term Evolution (LTE) System Level simulator [1] as well as some insight on its structure and the assumptions that were made while developing it. This document relates more on how to actually use the simulator. The concept and the structure of the simulator is described in more detail in [2])

把地理区域分成一个个小区，蜂窝系统在该区域内提供无线覆盖。把可用的频谱分成很多信道，每个小区分配一组信道。使用频分双工（FDD）。在小区间进行频率利用，N个小区构成一个簇，簇间进行频率复用。定义了传播特性（信道参数）以及同频小区的位置。信道的参数包括：小区半径，路径损耗指数，以分贝为单位的对数正态阴影的标准差，基站发射功率级，移动台发射功率级，每个小区的扇区数，扇区化天线的正反向比，要仿真的瞬时位置的组数，同频干扰阈值。(To a geographical area is divided into small areas, cellular systems in the region to provide wireless coverage. The available spectrum is divided into multi-channel, each plot the distribution of a group of channels. The use of frequency division duplex (FDD). In the district between the frequency of use, N plots constitute a cluster, cluster between frequency reuse. The definition of the propagation characteristics (channel parameters), as well as with the frequency of residential location. Channel parameters include: cell radius, path loss index to decibels for units Lognormal shadow of the standard deviation, the base station transmitter power level, mobile station transmitting power level, the number of sectors in each district, sector of the antenna the pros and cons to the ratio, to the transient simulation of the group a few positions, the same frequency interference threshold.)

信道比特分配需要根据信道好坏分配，可采用自适应chow算法 MATLAB编程( U81EA u9002 u5E94chow u7B97 u6CD5 MATLAB u7F16 u7A0)