Verilog超详细教程-北京大学于敦山

说明：  2. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions: (1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing; (2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape; (3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)

说明：  关于ofdm系统中ml检测信号的算法，供大家参考(ML detection algorithm for OFDM system)

基带数字传输系统的仿真 基带传输系统的基本结构带限信道的仿真以及性能分析；眼图和星座图判断信号的传输质量。 (Base-band digital transmission system simulation-based transmission system with the basic structure of band-limited channel simulation and performance analysis eye diagrams and constellation to determine the signal transmission quality.)

通过具体的信道实例对比几种信道容量，绘出对数正态衰落、瑞利衰落、Nakagami衰落下确定的容量随平均接收信噪比变化的曲线。(The capacity of several channels is compared by a specific channel example, and the curve determined by the logarithmic normal fading, Rayleigh fading and Nakagami fading with the change of the average received signal to noise ratio (SNR) is drawn.)

极化码基础方法仿真代码，并附外文解释文档(Polarization code basic method simulation code, with foreign language interpretation document.)

说明：  基于matlab平台，产生4FSK,2PSK数字信号(Generate 4FSK, 2PSK digital signal based on MATLAB platform)

MATLAB，基于GUI的串口的调试工具，并将接收到的数据实时显示在坐标轴上。(MATLAB, the serial port of the GUI-based debugging tools, and data received in real time is displayed in the axis.)

这是一个关于ofdm在802.11协议下的源码，很有参考价值，希望对大家有用(This is a matter of OFDM in the 802.11 protocol under the source, a good reference, in the hope that useful)

说明：  标准接口1-5V转换成4-20mA程序，应用于标准传感器接入(Standard Interface 1-5V Converting 4-20mA Program for Standard Sensor Access)

说明：  LDPC各种改进的比特翻转算法及加权比特翻转算法，包含BF,WBF,IMWBF,SMWBF,VSMWBF,RRWBF，提前终止的多比特翻转EWBF(LDPC improved bit flipping algorithms and weighted bit flipping algorithms, including BF, WBF, IMWBF, SMWBF, VSMWBF, RRWBF, and early terminated multi bit flipping EWBF)