danshuitingqishifan

说明：  雷达回波脉冲压缩常用代码，包括线性调频信号的时频特性，脉冲压缩，压缩后拓展等(Common codes for radar echo pulse compression, including time-frequency characteristics of LFM signal, pulse compression, expansion after compression, etc.)

DS-EV证据理论消除了当不同证据冲突过大时，判决的错误型。自己论文里所用的代码，用在认知无线电中。函数文件。(DS-EV evidence theory eliminate the wrong judgement when supplied evidence have strong contradictory This file has been used in my thesis in CR field. hope it can help you.)

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.)

用于对基于GOLD码的串行捕获算法，可以自定义信噪比，待捕获信号参数，代码分成搜索跟踪和捕获两部分，其中搜索的步长等参数也可以自定义，代码中acquiresignal.m部分为最终捕获相位展示的主程序。(For the serial acquisition algorithm based on GOLD code, we can customize the signal-to-noise ratio and the parameters of the signal to be captured. The code is divided into search part and capture part, The parameters such as search step can also be customized. Acquiresignal.m part is the main progress to output the results of the capture of phase.)

说明：  固定权值的常规波束形成，波束主瓣随着权值的变化而变化(A fixed weight of conventional beam forming, beam main lobe with the right and change the value of)

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])

D-S证据理论的MATLAB代码函数文件 根据D-S理论，可以进行模式分类，消除不确定性。并附有能量检测的D-S判断函数文件、自己论文里的代码，希望对你有用(Code function file of D-S evidence theory in MATLAB. it can accomplish mode classification and eliminate uncertainty. besides that it includes that D-S operation in energy detection technology function file. this file has been used in my thesis, holp it can help you.)

LTE CRC校验码 MATLAB仿真 上行共享信道编解码 仿真方案(LTE CRC checksum MATLAB simulation)

这是一段求信息量的C++程序,对输入的一组数据进行求和,及最终算出其信息量和信道容量(This is for the amount of information for some of the C++ Procedures, a group of input data summation, and finally calculate the amount of information and channel capacity)

代码为实现EM算法进行ofdm调制信号进行信道估计的仿真代码(source codes simulate the channel estimation using em algorithm)