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Description: 该函数是实现Costas环仿真的Matlab编程，具有较好的性能-this function is to achieve Costas Loop Simulation Matlab programming, with good performance
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Size: 2048 |
Author: xiaozhu |
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Description: BPSK\QPSK的二阶载波跟踪环,附matlab程序和dsp程序!-BPSKQPSK second order carrier tracking loop, with matlab processes and procedures dsp!
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Size: 229376 |
Author: 肖永江 |
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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,
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Size: 1024 |
Author: lily |
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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
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Size: 108544 |
Author: 周禹 |
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Description: 美国弗州大学的讲义,用cotas环实现载波恢复-The United States notes the University of Virginia, and realize carrier recovery loop cotas
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Size: 1024 |
Author: ltj1974 |
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Description: 一个QPSK的仿真程序，使用的是COSTAS环来恢复载波，给予SIMULINK-A QPSK simulation procedures, using a COSTAS loop to restore the carrier to give SIMULINK
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Size: 11264 |
Author: 杨沛 |
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Description: 汽车防盗器控制器源码，采用电力载波方式，后端通过一个锁相环解调。-Car anti-theft controller source, using power line carrier way back through a phase-locked loop demodulation.
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Size: 20480 |
Author: |
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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.
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Size: 2898944 |
Author: 萝卜 |
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Description: 介绍了一种基于锁频锁相环(FPLL)的载波跟踪算法。频率跟踪模块可以适应较大动态范围的频率变化，基于软件的数控振荡器(NCO)模块可以达到极高的频率跟踪精度。由于有锁频环的频率牵引，锁相环路滤波器可以设计得很窄，具有很好的抑噪性能，满足精确跟踪载波相位的要求。因此，该基于FPLL的载波跟踪算法可以适应信号存在较大的动态范围和噪声干扰的应用环境；同时，其鉴频鉴相算法表达式简单，易于用可编程数字器件实现。-Introduce an approach based on frequency-locking phase-locked loop (FPLL) carrier tracking algorithm. Frequency tracking module can adapt to a larger dynamic range of the frequency change, software-based numerical control oscillator (NCO) module can achieve the very high frequency tracking accuracy. Because of the frequency lock loop traction PLL filter can be designed very narrow, with very good noise suppression performance, to meet the precise requirements of carrier phase tracking. Therefore, the FPLL carrier-based tracking algorithm can be adapted to signal the existence of a larger dynamic range and noise of the application environment at the same time, the PFD algorithm expression is simple, easy to use programmable digital devices.
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Size: 162816 |
Author: 何宁 |
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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.
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Size: 33792 |
Author: gogomx |
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Description: 经典载波跟踪环costas环simulink建模仿真，采用QPSK调制，包含上下变频以及三种不同鉴相方式。-Classic costas loop carrier tracking loop simulink modeling and simulation, using QPSK modulation, including the upper and lower frequency, as well as phase three different ways.
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Size: 13312 |
Author: 李辉 |
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Description: 定义锁相环的工作模式：单载波为“1”、BPSK调制为“2”、QPSK调制为“3”-The definition of phase-locked loop mode of operation: single-carrier for the " 1" , BPSK modulation for the " 2" , QPSK modulation for the " 3"
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Size: 1024 |
Author: 昌平荣 |
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Description: Carrier Recovery Using a Second Order Costas Loop
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Size: 207872 |
Author: 蝈蝈 |
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Description: QPSK modulation system with recover loops-This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.
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Size: 15360 |
Author: ranbowang |
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Description: QPSK开环载波同步技术研究 频偏估计算法-Open-loop carrier synchronization QPSK Research Frequency Offset Estimation Algorithm
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Size: 1024 |
Author: wenweigao |
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Description: 通信载波恢复中Costas环仿真的Matlab编程-Communication Costas carrier recovery loop simulation in the Matlab programming
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Size: 17408 |
Author: fy |
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Description: costas环matlab仿真程序，用于载波恢复，能够达到很好的效果。-matlab simulation program costas loop for carrier recovery, to achieve good results.
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Size: 1024 |
Author: zhai |
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Description: 基于硬件定点的完整的costas载波恢复环设计，FPGA设计可以用之参考。包括输入QPSK信号，16倍符号率采样，初始频差2.4KHz，以及低通滤波器的设计等待。最重要的是有本人的注释，易于上手。-Hardware-based fixed-point of complete costas carrier recovery loop design, FPGA reference design can be used. Including input QPSK signal, 16 times the symbol rate sampling, the initial frequency difference 2.4KHz, and the design of low-pass filter to wait. The most important thing is to have my notes, easy to fly.
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Size: 2048 |
Author: luoshuwen |
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Description: 本文在分析GPS 软件接收机跟踪原理的基础上，首先比较码环与载波环不同鉴相器的性能，然后对二阶锁相环中不同环路参数设下的跟踪效果进行仿真分析，最后设计
了合适的码环与载波环路，并用实际采集的GPS 数据论证了所设计环路的有效性，为GPS 软件接收机跟踪环路的设计提供了参考。-Based on the analysis of GPS receiver tracking software on the basis of the principle, first compare the different code loop and carrier loop phase detector performance, and the different second-order PLL loop parameters set by the tracking simulation analysis, the final design the appropriate code loop and carrier loop, and with real GPS data collected demonstrated the validity of the design loop for GPS receiver tracking loop design software provides a reference.
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Size: 634880 |
Author: herui |
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Description: Costas loop for BPSK demodulation
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Size: 714752 |
Author: bouabidi |
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