Multiuser-OFDM-with-Adaptive

OFDM仿真程序，信道估计采用LS,MMSE,LMMSE,DCT等方法，做了个比较，ofdm那个是主程序(OFDM simulation program, channel estimation using LS, MMSE, LMMSE, DCT and so on, made a comparison, ofdm that is the main program)

1）设计Butterworth型音频抗混叠滤波器； 2）参数： 下通带频率300Hz；上通带频率3400Hz； 下阻带频率280Hz；上阻带频率3600Hz； 通带最大衰减0.3dB； 阻带最小衰减40dB； 3）采用一低通滤波器和一高通滤波器级联； 4）分别确定LPF和HPF的性能指标； 5）求出两滤波器的系统函数和频率响应，并画出其幅频特性曲线； 6）求整个滤波器的系统函数和频率响应，并画出其幅频特性曲线。(1) the design of Butterworth-type audio anti-aliasing filter 2) parameters: passband frequency of 300Hz on pass-band frequency 3400Hz under the stop-band frequency of 280Hz on stop-band frequency 3600Hz passband maximum attenuation of 0.3dB minimum stopband attenuation of 40dB 3) the use of a low-pass filter and a high-pass filter cascade 4) separately to determine the performance of LPF and HPF target 5) to derive two-filter system function and frequency response, and draw its increase frequency characteristic curve 6) for the entire filter system function and frequency response, and draw its amplitude-frequency characteristic curve.)

简易智能家居,光采集,湿温度采集,自动浇花,总机控制 /************************* * 简易智能家居 * * 总机控制模块 * * 2016/4/10 * *************************/(Easy smart home, light collection, wet temperature acquisition, automatic watering, switchboard control Simple Smart Home Switchboard Control Module)

这是一篇介绍数字下变频中抽取滤波器设计的文章 我觉得很有指导意义，在此共享(this arcitle is dicrible the DDC design,very good)

说明：  EtherCAT(以太网控制自动化技技)是一种用于确定性以太网的高性能技业通信协议,它扩展了IEEE 802.3 以太网标准,使得数据传输中具有可预测性定时及高精度同步等特点。这个开放性标准作为 IEC 61158 的组成部分,常用于机械设计及运动控制等应用中。EtherCAT 采用标准的IEEE802-3 以太网帧,帧结构如图 1。EtherCAT 协议直接用标准以太网的帧格嵌传输数据,并不修改其基本结构(ethercat communication)

南自提供---标准FT3通讯规约格式,详细提供了他的格式(standard Statute of FT3)

说明：  电池管理系统当中使用的一线通，节省成本 本人已测试成功 效果显著(Battery management system in the use of the first line, saving costs)

无线通信瑞利信道仿真：使用复高斯滤波技术和近似多普勒扩展仿真瑞利衰落信道(Simulation of Rayleigh multipath fading Channel)

宽带发射波束形成仿真，16通道，合成角度可以让您以选择，观察角度也可以任意选择。选择了模拟延时线，并仿真了模拟延时线的量化误差。(the code is about WBDBF,it simulate the quantilization error effection of TDU.)

The PCI Local bus concept was developed to break the PC data I/O bottleneck and clearly opens the door to increasing system speed and expansion capabilities. The PCI Local bus moves high speed peripherals from the I/O bus and places them closer to the system’s processor bus, providing faster data transfers between the processor and peripherals. The PCI Local bus also addresses the industry’s need for a bus standard which is not directly dependent on the speed, size and type of system processor. It represents the first microprocessor independent bus offering performance more than adequate for the most demanding applications such as full-motion video.(The PCI Local bus concept was developed to breakthe PC data I/O bottleneck and clearly opens the doorto increasing system speed and expansion capabilities.The PCI Local bus moves high speed peripheralsfrom the I/O bus and places them closer to the system sprocessor bus, providing faster data transfersbetween the processor and peripherals. The PCI Localbus also addresses the industry s need for a bus standardwhich is not directly dependent on the speed, size and type of system processor. It represents thefirst microprocessor independent bus offering performancemore than adequate for the most demandingapplications such as full-motion video.)