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[VHDL-FPGA-Verilog] PL_FSK

Description: 数字通信系统通信系统调制解调（PL_FSK）VHDL建模，包括发送和接受模块-Digital Communication System Communication System modulation and demodulation (PL_FSK) VHDL modeling, including sending and receiving modules
Platform: | Size: 187392 | Author: 万金油 | Hits:

[Applications] infrared_transmitter

Description: 自定义编码的红外发射器，采用汉明纠错编码。接收方可实现一位误码的纠错。38KHz发射载波调制，配合红外发射二级管可实现5－10米的数据通信与遥控。-Custom-coded infrared transmitters using Hamming error correction coding. Receive only realize a bit error correction. 38KHz launch carrier modulation, with the infrared emission diode can realize 5-10 m data communication with the remote control.
Platform: | Size: 358400 | Author: M | Hits:

[Communication] ASK

Description: 通信系统的ASK调制程序，比较实用，包括完整的工程-ASK modulation communication system procedures, more practical, including the complete works
Platform: | Size: 290816 | Author: wanyou2345 | Hits:

[VHDL-FPGA-Verilog] FSK

Description: 通信系统的FSK调制程序，比较实用，包括完整的工程-FSK modulation communication system procedures, more practical, including the complete works
Platform: | Size: 331776 | Author: wanyou2345 | Hits:

[VHDL-FPGA-Verilog] alaw

Description: 使用VHDL实现通信脉冲编码调制（PCM）中的a律转换，并实现串并、并串转换。-Use VHDL to achieve communication pulse code modulation (PCM) of a law conversion, and to achieve and string, and string conversion.
Platform: | Size: 5120 | Author: wl | Hits:

[VHDL-FPGA-Verilog] ulaw

Description: 使用VHDL语言，实现通信脉冲编码调制（PCM）的u律压缩。-Using VHDL language, the realization of communication pulse code modulation (PCM) of u law compression.
Platform: | Size: 5120 | Author: wl | Hits:

[VHDL-FPGA-Verilog] ask

Description: 提供一个把通信中ASK调制用VHDL来实现的例子，内附有相应的VHDL源程序。-To provide a communication ASK modulation achieved using VHDL example, enclosing a corresponding VHDL source code.
Platform: | Size: 66560 | Author: 靳朝 | Hits:

[Communication-Mobile] qpsk

Description: qpsk vhdl code ue to impelemented on fpga kits
Platform: | Size: 6144 | Author: ahmed | 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:

[Communication-Mobile] FSK_modulation_and_demodulation

Description: 模拟数字通信通道，将离散数据利用奇偶效验码编码，FSK调制后，发送，接收端解调解码后还原-Analog-to-digital communication channel, the use of discrete data to be well-tested code parity coding, FSK modulation, the transmission, the receiving end to restore the decoded demodulation
Platform: | Size: 252928 | Author: Andy Hu | Hits:

[VHDL-FPGA-Verilog] hilbert_transformer_latest.tar

Description: The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approximate the Hilbert Transform with a digital filter. Due to the non-causal and infinite impulse response of that filter, it is not that easy to get a good approximation with low hardware resource usage. Therefore, different filters with different complexities have been implemented. The detailed discussion can be found in "Digital Hilbert Transformers or FPGA-based Phase-Locked Loops" (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4629940). The design is fully pipelined for maximum throughput.
Platform: | Size: 1239040 | Author: Arun | Hits:

[VHDL-FPGA-Verilog] HDB3encoder

Description: 数字基带信号的传输是数字通信系统的重要组成部分。在数字通信中，有些场合可不经过载波调制和解调过程，而对基带信号进行直接传输。采用AMI码的信号交替反转，有可能出现四连零现象，这不利于接收端的定时信号提取。而HDB3码因其无直流成份、低频成份少和连0个数最多不超过三个等特点，而对定时信号的恢复十分有利，并已成为CCITT协会推荐使用的基带传输码型之一。为此，本文利用VHDL语言对数据传输系统中的HDB3编码器进行了设计。-Digital baseband signal transmission is an important digital communication system components. In digital communications, some occasions may, after modulation and demodulation process, and on the base-band signals transmitted directly. AMI code using the turn signal inversion, there may be zero Silian phenomenon, which is not conducive to the receiving end of the timing signal extraction. HDB3 code and its non-DC components, and even less low-frequency components of 0 up to more than three the number of characteristics such as timing signals for the recovery of very favorable, and the Association has become the CCITT recommended base-band transmission-type, one code. In this paper, the use of VHDL language in the data transmission system HDB3 encoder has been designed.
Platform: | Size: 108544 | Author: shashou | Hits:

[Program doc] ofdm

Description: ofdm is a multicarrier modulation technique inn wireless communication
Platform: | Size: 754688 | Author: vijay | 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:

[Communication-Mobile] ask

Description: 通信系统数字信号调制，振幅监控ask信号的调制和解调的VHDL代码-Communication systems digital signal modulation, amplitude control ask signal modulation and demodulation of the VHDL code for
Platform: | Size: 1024 | Author: lihao | Hits:

[VHDL-FPGA-Verilog] 4ask

Description: 数字通信系统4进制振幅键控4ASK信号的调制的VHDL代码-Digital Communication Systems 4 binary amplitude shift keying modulation 4ASK signal VHDL code
Platform: | Size: 1024 | Author: lihao | Hits:

[VHDL-FPGA-Verilog] 4fsk

Description: 数字通信系统4进制频移键控4ASK信号的调制的VHDL代码-Digital Communication Systems 4 MFSK 4ASK signal modulation VHDL code
Platform: | Size: 1024 | Author: lihao | Hits:

[VHDL-FPGA-Verilog] ask_fsk

Description: 数字通信系统振幅键控ASK信号和频移键控FSK的调制与解调的VHDL代码-ASK amplitude shift keying digital communication system signal and the frequency shift keying modulation and demodulation of the VHDL code for
Platform: | Size: 2048 | Author: lihao | Hits:

[DSP program] fangz

Description: 数字通信系统的仿真，包括调制解调，上下变频，加入了高斯白噪声，并且每个步骤都生成相应的图形-Digital communication system simulation, including the modulation and demodulation, the upper and lower frequency, by adding Gaussian white noise, and each step generates the appropriate graphics
Platform: | Size: 34816 | Author: maominchao | Hits:

[VHDL-FPGA-Verilog] bpsk

Description: 基于FPGA的BPSK数字调制器的实现，对于学习通信专业的人应该有些帮助-FPGA-Based Digital Modulator BPSK, for people to learn communication professional should be some help
Platform: | Size: 432128 | Author: 李博 | Hits:
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