modbus

opnet software fo simulation network

高速DDR存储器数据接口设计实例. 1. 将文件拷入硬盘 2. 产生DQS模块 3. 产生DQ模块 4. 产生PLL模块 5. 拷贝以上步骤生成的文件到子目录【Project】中 6. 打开子目录【Project】中的DataPath.qpf工程，设计顶层模块 7. 编译并查看编译结果 (High-speed DDR memory interface design data. 1. Copyed into the document hard disk 2. DQS generated module 3. Have a DQ module 4. Have a PLL module 5. Copies of the above steps to generate a document to a subdirectory 【Project】 6. Open the subdirectory 【Project】 DataPath.qpf in engineering, design top-level module 7. compilers to compile the results and see)

说明：  设计一个数字低通滤波器，来近似一个理想数字滤波器(Design a digital low-pass filter to approximate an ideal digital filter)

这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT， 上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模 块，并统括系统性能的仿真验证了系统设计的可靠性 (OFDM full version of the source code, including coding, modulation, IFFT, Upper and lower frequency, Gaussian channel model, FFT, PAPR suppression, a variety of synchronization, demodulation and decoding module, and system performance of the omnibus simulation verify the reliability of the system design)

C-Type Filter Design Based on Power-Factor Correction for 12-pulse HVDC Converters

说明：  利用Matlab软件来实现基于滤波的正交频分复用F-OFDM(use the matlab to achieve the F-OFDM)

说明：  数据通信的课程设计，用于实现AMI码等等在数据通信中实用的编码。(Data communication curriculum design, code, etc. used to implement AMI useful in data communications code.)

在高斯白噪声信道和莱斯信道下调制方式为qpsk的基本通信系统的误码率仿真 (In the Gaussian white noise channel and Rice channel qpsk modulation method is the basic communication system BER simulation)

Simulation DFB Laser by Burt Lann Espe

this is for calculate qam and it is very good to practice so good u can play