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[Communication] HDB3code

Description: 光纤通信中的编码方式hdb3，编解码的vhdl实现-Optical fiber communications in encoding hdb3, codec realize the VHDL
Platform: | Size: 5120 | Author: 江泽民 | Hits:

[VHDL-FPGA-Verilog] T5B6B

Description: 5b6b编码，在光通信线路编码中有很广泛的应用。VHDL语言。-5b6b coding, coding in optical communication lines have very broad applications. VHDL language.
Platform: | Size: 1024 | Author: BrivaMa | Hits:

[Other Embeded program] qep

Description: 一个QEP电路的verilog代码。输入信号是光电编码器的A相和B相信号和一个处理时钟，输出的是计数信号和方向信号。-A QEP circuit Verilog code. Input signal is the optical encoder of the A phase and B and believe that a deal with the clock, the output is the count signal and direction signal.
Platform: | Size: 1024 | Author: 张洁 | Hits:

[SCM] CPLD

Description: 控制三相步进电机及光电编码器的采集,当电机停止时,保证三相里面只有一相相通,防止停止时电流过大.-Control three-phase stepper motor and optical encoder collection, when the motor stops to ensure that only one phase of three-phase inside the heart, and to prevent too much current is stopped.
Platform: | Size: 580608 | Author: suifeg | Hits:

[MiddleWare] counter

Description: 基于CPLD的计数器 实现光纤测距，包含与单片机的时序控制 Verilog 实现 通过仿真-CPLD-based counters realize optical ranging, single-chip microcomputer that contains timing control and realize the adoption of Verilog simulation
Platform: | Size: 2048 | Author: 强冰 | Hits:

[Windows Develop] sdh

Description: 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 overhead bytes, it contains a lot of important information, the procedures for receiving SDH overhead processing, search header, sub-frequency ,勤務if E1 asynchronous byte fifo. Removable for three source code, I do not know the three procedures can be arrived
Platform: | Size: 6144 | Author: 韩冰 | Hits:

[VHDL-FPGA-Verilog] CPLDforCCD

Description: 基于CPLD的光积分时间可调线阵CCD驱动电路设计-CPLD-based optical integration time adjustable linear array CCD Drive Circuit Design
Platform: | Size: 418816 | Author: 赵晖 | Hits:

[ARM-PowerPC-ColdFire-MIPS] DesignofIntegratedCircuitsforOpticalCommunications

Description: Design of Integrated Circuits for Optical Communications deals with the design of high-speed integrated circuits for optical communication systems. Written for both students and practicing engineers, the book systematically takes the reader from basic concepts to advanced topics, establishing both rigor and intuition. The text emphasizes analysis and design in modern VLSI technologies, particularly CMOS, and presents numerous broadband circuit techniques. Leading researcher Behzad Razavi is also the author of Design of Analog CMOS Integrated Circuits. -Design of Integrated Circuits for Optical Communications deals with the design of high-speed integrated circuits for optical communication systems. Written for both students and practicing engineers, the book systematically takes the reader from basic concepts to advanced topics, establishing both rigor and intuition. The text emphasizes analysis and design in modern VLSI technologies, particularly CMOS, and presents numerous broadband circuit techniques. Leading researcher Behzad Razavi is also the author of Design of Analog CMOS Integrated Circuits.
Platform: | Size: 10731520 | Author: huang | Hits:

[VHDL-FPGA-Verilog] fpga

Description: 无线光通信技术具有通信容量大、传输速率高等众多优点, 在许多场合都有重要的应用, 是现代通信技术研究的一个热点。由于脉冲位置调制 ( PPM ) 有较高的平均功率利用率和抗干扰能力, 故 PPM是无线光通信系统中常用的调制方式。在研究 PPM调制技术的基础上, 就基于 FPG A的无线光通信 PPM调制系统进行设计, 并用 V H D L语言完成了系统的设计和仿真。仿真结果表明, 该设计具有正确性和合理性。-Wireless optical communication technology has the communications capacity, many of the benefits of higher transmission rates, in many occasions have important applications in modern communication technologies are a hot research. Because of pulse position modulation (PPM) have a higher average power utilization and anti-interference ability, so PPM is a wireless optical communication system commonly used in modulation. PPM modulation technique in the study on the basis of FPG A based on wireless optical communication PPM modulation system design, and VHDL language achieve the system design and simulation. Simulation results show that the rationality of the design right.
Platform: | Size: 194560 | Author: 朱雯 | Hits:

[VHDL-FPGA-Verilog] statemachine

Description: 基于状态图的光电编码器4倍频vhdl程序，输入相位差90度的两相，输出倍频和方向信号-Based on the state of the optical encoder Figure 4 multiplier vhdl procedure, enter a 90-degree phase difference of two-phase, frequency and direction of the output signal
Platform: | Size: 1024 | Author: pudn | Hits:

[VHDL-FPGA-Verilog] zhuanpan

Description: 增量式光电编码器输出四分频脉冲计数，分别为A，B两路信号-Incremental optical encoder pulse count output frequency of a quarter, namely A, B two-way signal
Platform: | Size: 1024 | Author: 方培潘 | Hits:

[VHDL-FPGA-Verilog] pcm

Description: 　　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 " 0" code and " 1" code, which is a binary digital signal to carry out on-off modulation source derived. The digital signal is a continuously variable analog signal sampling, quantization and coding generated is called PCM (pulse code modulation), or pulse code modulation. Such as digital signal power digital baseband signal by the PCM client machine generated electricity.
Platform: | Size: 1024 | Author: 圈石 | Hits:

[VHDL-FPGA-Verilog] MAIN_RX_V10

Description: 8路视频光端机 接收侧 VHDL源码，使用了千兆以太网SERDES芯片，基于TBI接口的PCM视频传输。-8-Channel Video Optical Receiver side of VHDL source code, using the Gigabit Ethernet SERDES chip, based on the TBI interface PCM video transmission.
Platform: | Size: 1088512 | Author: tr | Hits:

[Embeded-SCM Develop] opticalgrating

Description: 是基于FPGA的光栅尺辩向程序设计！使用的是quartes II开发软件！-FPGA-based optical grating to the program design debate! Using quartes II development software!
Platform: | Size: 849920 | Author: 陈涛 | Hits:

[VHDL-FPGA-Verilog] B_PON_OLT_VHDL

Description: ATM-PON(Passive Optical Network) OLT vdhl proj.file
Platform: | Size: 16136192 | Author: mr.jeon | Hits:

[Software Engineering] fjq4

Description: 光纤通信以其损耗低、高带宽、抗电磁干扰、保密性好等优点越来越多地应用在视频通信中[1～ 5 ]. 针对 光纤综合业务传输平台, 本文提出了一种将三路视频信息复用为一路视频信息的数字复接器的硬件电路 设计. 提高了传输容量和传输效率, 达到抗干扰、抗噪声的能力, 从而改善了传输平台的环境适应性及工作 性能. 该复接器硬件电路的设计采用EDA 技术, 以FPGA 器件为载体, 使用VHDL 硬件描述语言进行电路-Optical fiber communication with its low loss, high bandwidth, anti-electromagnetic interference, security and good benefits are increasingly used in video communications in the [1 ~ 5]. For the fiber optic integrated services delivery platform, this paper presents a three-way will be video information re-used as the way digital video multiplexer hardware circuit design. to improve the transmission capacity and transmission efficiency, to achieve anti-jamming, anti-noise capability, thereby improving the transmission platform, environmental adaptability and work performance. The re- connector hardware circuit design using EDA technology to FPGA devices as the carrier, using the VHDL hardware description language circuit
Platform: | Size: 325632 | Author: renxiang | Hits:

[VHDL-FPGA-Verilog] coder_counter

Description: 增量式光电编码器计数器的FPGA实现程序,verilog3段式FSM,异步加载.-Incremental Optical Encoder counter program FPGA implementation, verilog3 struts FSM, asynchronous load.
Platform: | Size: 1024 | Author: | Hits:

[VHDL-FPGA-Verilog] work

Description: 增量式正交光电解码盘FPGA verilog-Incremental orthogonal optical disk FPGA verilog decoder
Platform: | Size: 29696 | Author: wangjinghui | Hits:

[VHDL-FPGA-Verilog] screw

Description: 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
Platform: | Size: 1024 | Author: 刘金华 | Hits:

[Software Engineering] Baseband-optical-based-on-Gigabit

Description: 提出一种适用于数字微波接力系统的基 带光纤拉远的接口方案 采用高性能千兆以太网物理层芯片 88E1111 和 1.25G 光收发器 SSFF3151 完成基带接口 基带信号可以通过数字光纤传输技术传到远端 并恢复射频信号 介绍了 88E1111 的工作原理 性能 接口等 并给出硬件电路设计的原理 以及各部分的具体实现方法和原理图 -Compared with the traditional RF and IF pulls distant technology the baseband optical pulls distant technology has some obvious superiority,especially in feeder line processing and choice of station site it has become the main pulls distant technology in 3G network such as TD SCDMA.Refering to the baseband optical pulls distant technology in 3G network the paper proposes a scheme which is suitable for the digital microwave relay system.The design uses high performance Gigabit chip 88E1111 and 1.25G optical transceiver SSFF3151 to compelete the baseband interface.The signal transmits to the remote through the digital fiber and restores the radio frequency signal.This paper introduces 88E1111 s principle performance interface the hardware circuit design principles as well as part of the concrete implementation and schematic diagrams.The scheme satisfies the baseband transmision in the stability and the error rate aspect.It can be used in kinds of digital microwave relay systems.
Platform: | Size: 143360 | Author: moon | Hits:
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