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screw
- 一个好用的扰码器,主要用在光纤通信上面。因为为了保持送给光模块的信号不是全1或者全0-A nice scrambler, mainly used in optical fiber communication above. Because in order to maintain the optical module of the signal is not sent to all 1 or all 0
sdh
- SDH是现代光纤通信中广泛应用的数据传输格式,在SDH帧结构中,前9列为开销字节,它包含了很多重要的信息,本程序为SDH开销的接收处理,查找帧头,分频,勤务话字节E1异步fifo。可拆为三段源代码,不知道能不能抵三个程序-SDH is a modern optical fiber communication is widely used in data transmission format, in the SDH frame structure, as the former 9 overhea
SDHAnalysis
- 光纤通信中的SDH数据帧解析及提取的VHDL实现源代码,共包含帧同步、E1及F1码流提取、DCC1码流提取、帧头开销串行输出四个主要模块-SDH fiber-optic communication data frame analysis and retrieval implementation of VHDL source code, include the frame synchronization, E1 and F1 stream extraction, DCC1 stream extra
pcm
- 在光纤通信系统中,光纤中传输的是二进制光脉冲"0"码和"1"码,它由二进制数字信号对光源进行通断调制而产生。而数字信号是对连续变化的模拟信号进行抽样、量化和编码产生的,称为PCM(pulse code modulation),即脉冲编码调制。这种电的数字信号称为数字基带信号,由PCM电端机产生。-In optical fiber communication systems, fiber-optic transmission of light pulses is a binary "
OpticalFiber
- 利用VHDL语言编写的光纤通信,将上位机的命令通过主站处理后,用光纤发送到从站。-VHDL language using fiber-optic communication, the host computer commands through the main points are treated, the fiber is sent to from the station.
5b6b
- 5B6B码是光纤数字通信系统中使用比较广泛的一种线路码型! 数据经过5B6B编码和并串转换后在光纤上传输,串行码序列中连续的比特0或比特1的长度不超过5,数据在0和1之间变换的密度很高,并具有直流平衡的特性,有利于接收电路和时钟恢复电路的设计。-5B6B code is used in fiber optic digital communication systems a more extensive line pattern! Data are 5B6B encoding and conver
VHDL_SDH
- 现代光纤通信SDH的VHDL源码,实现SDH开销的接收处理。-VHDL source code of modern fiber-optic communication SDH the SDH overhead of receiving and processing.
asas
- 系统应用FPGA技术,通过VHDL编程,在CPLD上实现。电子琴的基本原理是产生各个音符对应的频率,将频率放大后驱动喇叭发出音响。该电子琴包括手动弹奏与自动演奏两种功能,其中手动弹奏时还可录音回放。文中叙述了电子琴的设计原理和分块实现的方法,详细介绍各模块的设计及模块之间的连接组合方法,还包括电子琴 -According to incomplete statistics, these companies represent about 40 of the domestic fiber la