MUSIC

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.)

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：  蒙特卡罗模拟光散射程序，粒子随机分布，绝对可以直接运行。带有简单说明～～～～～～！(Monte Carlo Simulation of light scattering process, a random distribution of particles can definitely make a direct run. With a brief description of ~~~~~~!)

南航张小飞的书《阵列信号处理的理论和应用》，包括原书的PDF和MATLAB代码，内容为波束形成和阵列参数估计等内容。(Southern China Zhang Xiaofei book "array signal processing theory and application", including the original book PDF and MATLAB code, content for beamforming and array parameter estimation and so on.)

matlab编写的turbo码示例程序，用于通信系统的信道编解码仿真(matlab prepared turbo code sample procedures for communication system simulation channel codec)

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.)

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)

DVB-T simulink simulation

在发射端发射大时宽、带宽信号，以提高信号的速度测量精度和速度分辨力，而在接收端，将宽脉冲信号压缩为窄脉冲，以提高雷达对目标的距离分辨精度和距离分辨力。(In order to improve the speed measurement accuracy and speed resolution of the signal at the transmitter, the wide pulse signal is compressed into a narrow pulse at the receiving end to improve the range resolution and range resolution of the radar.)

仿真了限幅方法减小PAPR，在MATLAB环境下实现仿真(Simulation of the limiter methods to reduce PAPR, in the MATLAB environment to achieve simulation)