Location:
Search - 数字载波
Search list
Description: 数字载波调制系统的matlab仿真程序，通过测试无误-digital carrier modulation system Matlab simulation, testing and unmistakably
Platform: |
Size: 2550 |
Author: 张舒 |
Hits:
Description: 针对扩频系统的载波同步, 研究了数字Costas 环的设计和实现方法。介绍了数字Costas 环的结构、实现载波同步的基本方法。以二阶环为例, 分析了数字锁相环的环路滤波器的参数设计方法, 为数字Costas 环的设计提供了参考。提出了在高速信号处理板(以FPGA 和DSP 为基础) 中数字Costas 环的实现方案, 经工程验证, 能够实现载波同步, 解调出所需信号.
Platform: |
Size: 254246 |
Author: aachenw@yahoo.com |
Hits:
Description: 近年来通信信号的数字解调技术引起了人们的广泛关注, 本文根据M SK 信号的数学特征, 提出了一种基于MSK 信号特殊点FFT 的实部或虚部比较判决的方法来实现M SK 信号的数字解调。推导了在高斯白噪声背景下该方法的误码情况。计算机仿真结果表明该算法是简单、有效的。与传统的M SK 最佳解调方法相比本算法对载波频偏不敏感, 可以应用于一些通信侦察和截获的场合。
Platform: |
Size: 204979 |
Author: 751491620@qq.com |
Hits:
Description: 基于相位载波( PGC , Phase Generated Carrier) 解调各环节的信号频率范围，提出变采样率解调方案，解决高采样频率下的实时全数字PGC 解调问题.
Platform: |
Size: 244669 |
Author: lisignal@126.com |
Hits:
Description: 实现数字载波的MSK调制和解调的程序，记事本格式 可在VHDL中运行仿真
Platform: |
Size: 4851 |
Author: liuliql_100 |
Hits:
Description: 本书是数学通信领域的一本经典教材，通过对概率论及随机过程的复习，详细介绍了数字和模拟信源编码，数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。本书适合通信工程相关专业的高年级本科生、研究生及工程技术人员阅读。
Platform: |
Size: 17766400 |
Author: 苹果 |
Hits:
Description: 基带数字信号通过成形滤波（选用升余弦滚降函数）然后进行载波调制-Base-band digital signal through the shaping filter (raised cosine roll-off optional function) and then proceed to carrier modulation
Platform: |
Size: 4096 |
Author: 黄华 |
Hits:
Description: 数字锁相环，采用costas环的数字形式，实现跟踪载波相位，-Digital phase-locked loop, using the digital form costas loop to achieve carrier phase tracking,
Platform: |
Size: 1024 |
Author: lily |
Hits:
Description: 看重讨论了数字接收机中载波同步环的一种设计方法,详细分析了从模拟域到数字域的转化过程，并以16QAM数字接收机载波同步环为例给出了相应的结论-Seriously discussed the digital receiver carrier synchronization in a ring design methodology, a detailed analysis of the domain from analog to digital domain of the transformation process, and 16QAM digital receiver carrier synchronization loop as an example the corresponding conclusions
Platform: |
Size: 108544 |
Author: 周禹 |
Hits:
Description: 数字中频采样接收机的设计，探讨了数字中频采样接收机的结构，时序同步与载波同步的算法。结合实际应用，对于数字中频采样接收机中的若干关键问题进行了较为深入的研究。-Digital IF sampling receiver design, to explore the digital IF sampling receiver structure, timing synchronization and carrier synchronization algorithms. Combined with practical application, the digital IF sampling receiver in a number of key issues in more depth.
Platform: |
Size: 223232 |
Author: 周禹 |
Hits:
Description: 用SystemView软件进行数字通信系统仿真
基带传输
载波传输-SystemView software used in digital communication system simulation base-band transmission carrier transmission
Platform: |
Size: 280576 |
Author: winnichan |
Hits:
Description: 本文首先介绍了数字接收机中同步技术，包括载波同步和符号同步。同步
算法主要可以分为两大类:现行的开环算法和传统的闭环算法。接着研究了一
些典型的载波同步算法和符号同步算法。
-This paper first introduces the digital receiver synchronization techniques, including carrier synchronization and symbol synchronization. Synchronization algorithm can be divided into two main categories: the existing open-loop algorithm and the traditional closed-loop algorithm. Then study some typical carrier synchronization algorithm and symbol synchronization algorithm.
Platform: |
Size: 2898944 |
Author: 萝卜 |
Hits:
Description: 基于模糊逻辑控制的数字锁相环，用于通信系统中的载波恢复。Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.-Based on fuzzy logic control of digital phase-locked loop for the communication system in carrier recovery. Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.
Platform: |
Size: 33792 |
Author: gogomx |
Hits:
Description: 本课程设计完成了基带线路码产生电路的设计，数字基带信号的传输是数字通信系统的重要组成部分之一。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。为使基带信号能适合在基带信道中传输，通常要经过基带信号变换，这种变换过程事实上就是编码过程。本些课题实现了这样的编码过程。-This course is designed to use VHDL hardware description language completed the base-band circuits have a code of the circuit design. Digital base-band signal transmission of digital communications systems is an important part of one.In the signal before transmission to go through the code to deal with. In digital communications, there are some occasions, not through the process of modulation and demodulation, and base-band signal for direct transmission. In order to be able to base-band signal for the base-band transmission channels, usually after a base-band signal transformation, the transformation process is in fact the process of encoding.
Platform: |
Size: 683008 |
Author: li |
Hits:
Description: 数字信号解调（接收端），包括：“删除干扰噪声信号”，“从载波信号中提取原始信号”，“滤波器滤波”，“用PSK解码，把图形变成数字信号”。-Digital signal demodulator (receiver), including: " to remove interference noise signal," " carrier signal extracted from the original signal," " filter" , " with PSK decoding, graphics put into a digital signal."
Platform: |
Size: 153600 |
Author: hub86 |
Hits:
Description: 数字信号载波传输仿真实现，m文件，波形及其运行结果-Digital signal carrier transmission simulation, m file, waveform and its results
Platform: |
Size: 2048 |
Author: 牙羽獠 |
Hits:
Description: 载波调制的数字传输，有幅度，相位，频率的调制，以及正交调制和同步-Modulation of the digital transmission, a range, phase, frequency modulation, and quadrature modulation and synchronization
Platform: |
Size: 9216 |
Author: 廖洪运 |
Hits:
Description: 1、用数字信源模块、数字终端模块、位同步模块及帧同步模块连成一个理想信道时分复用数字基带通信系统，使系统正常工作。
2、用数字信源、数字终端、数字调制、2DPSK解调、载波同步、位同步及帧同步等七个模块构成一个理想信道时分复用2DPSK通信系统并使之正常工作。
3、用数字信源、数字终端、数字调制、2FSK解调、位同步及帧同步等六个模块，构成一个理想信道时分复用2FSK通信系统并使之正常工作。-1, with the number of source modules, digital terminal module, bit synchronization module and frame synchronization modules together into an ideal channel time-division multiplexing digital baseband communications system, make the system work properly. 2, with the number of sources, digital terminals, digital modulation, 2DPSK demodulation, carrier synchronization, bit synchronization and frame synchronization seven modules constitute an ideal channel time-division multiplexing communication system 2DPSK make it work properly. 3, with the number of sources, digital terminals, digital modulation, 2FSK demodulation, bit synchronization and frame synchronization six modules, constitute an ideal channel time-division multiplexing communication system 2FSK make it work properly.
Platform: |
Size: 1101824 |
Author: 张三 |
Hits:
Description: 使用verilog实现全数字16QAM调制器，载波频率1MHZ，数据比特流的速率为100Kbps,-the modulation of 16QAM based on FPGA
Platform: |
Size: 2048 |
Author: 杨明 |
Hits:
Description: 《数字通信》(第4版)是数字通信领域的一本经典教材,通过对概率论及随机过程的复习,详细介绍了数字和模拟信源编码、数字调制信号和窄带信号与系统的特征、加性高斯白噪声中数字通信的调制和最佳调制与检测方法、基于最大似然准则的载波相位估计和定时同步的方法、不同信道模型的信道容量及随机编码、带限信道的信号设计、受到符号间干扰恶化信号的解调与检测问题、自适应信道均衡、多信道与多载波调制、扩展频谱信号和系统、衰落信道上的数字通信。 -" Digital communication" (4th edition) is a digital communications of a classic textbook in the field, through the review process, the probability of randomly addressed, details of the digital and analog source coding, digital modulation signal and the narrowband signal and system characteristics, additive white Gaussian noise in digital communication modulation and the best modulation and detection methods, based on maximum likelihood criterion of carrier phase estimation and time synchronization method, different channel model of channel capacity and random coding, band-limited channel signal design by ISI worse signal demodulation and detection, adaptive channel equalization, multi-channel and multi-carrier modulation, spread spectrum signals and systems, fading channel digital communications.
Platform: |
Size: 17589248 |
Author: ng |
Hits: