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hdb
- 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。 基于达到达到达到的信号发生器的源程序-Digital baseband
costas_ClosedLoop
- A Costas loop is a phase-locked loop used for carrier phase recovery from suppressed-carrier modulation signals, such as from double-sideband suppressed carrier signals. It was invented by John P. Costas at General Electric in the 1950s. Its inventio
costas_ClosedLoop_IIR
- A Costas loop is a phase-locked loop used for carrier phase recovery from suppressed-carrier modulation signals, such as from double-sideband suppressed carrier signals. It was invented by John P. Costas at General Electric in the 1950s. Its inventio
sqrt-base-on-fpga
- 对一种改进的不恢复余数的开方算法(non - restoring square - root algorithm)进行了讨论 ,并将其应用于基于 IEEE 754 标准的32 位浮点格式的开方运算中 ,以一款 FPGA 为载体 ,实现了进行运算的基本电路。对目前存在的几种开方 算法进行了评述 ,分析了他们的优缺点 ,提出了改进的不恢复余数开方算法模块化的设计思路与关键电路 ,并分析了仿真和 逻辑综合的结果 ,证明了该算法运算速度较快且占用资源极少的特点。-An improved no
highorderQAMequalicarecovery
- 一篇高阶QAM信号联合载波同步与盲均衡的外文文献，采用了多模盲均衡算法-a paper about the blind equalization and carrier recovery of high order QAM signals and uses MMA method
TBMatlab
- 软件无线电的matlab程序，包含了一个软件无线电全功能接收机的实现：信号产生、调制与解调、数字滤波和fft变换、载波恢复和脉冲成形，同步恢复，线性均衡，编码Mix‘n 接收机-Software radio matlab program, includes a full-featured software-defined radio receiver implementation: signal generation, modulation and demodulation, digital f
carrier-recovery
- this code simulate the channel model and function about channel
COSTAS_LOOP
- 使用ISE12.1编写的Costas环，用于载波恢复，直接使用了IP核中的FIR和DDS模块-Use ISE12.1 written Costas loop for carrier recovery, the direct use of the IP core of FIR and DDS module
code
- 卷积码的维特比译码函数与通信中接收端载波恢复的科斯特斯环函数.-The receiving end of the carrier recovery convolutional codes Viterbi decoding functions and communication functions Costes ring
5.--PSK-Demodulation-(Part-1)
- Phase-shift keying (PSK) is a modulation process whereby the input signal, a binary PCM waveform, shifts the phase of the output waveform to one of a fixed number of states. The demodulation process can be divided into three major subsections, as
phase-shiftKeying
- Thus PSK systems require less transmitted power for a given probability of error than ASK or FSK systems. Synchronous detection of PSK signals is required,due to the absense of a large carrier component.Carrier recovery is there for emore compl
CTRecovery
- carrier and timing recovery radio communication receiver
Post_S_DSP_Phase_16QAM
- MQAM在DSP中进行信号处理需要的载波相位恢复程序，适用于16QAM信号的载波相位恢复，利用Python语言编写 -MQAM signal processing in the DSP requires the carrier phase recovery process, the 16QAM signal applied to the carrier phase recovery, using the Python language
MATLAB3E23
- 【matlab编程代做】载波同步恢复16QAM星座图-[Do] matlab programming generation carrier synchronization recovery 16QAM constellation
LJDS4554
- 【matlab编程代做】载波同步恢复16QAM星座图可以作为参考使用学习 -[Do] matlab programming generation carrier synchronization recovery 16QAM constellations can use as a reference to learn
paper5
- LTE论文（Channel Estimation, Carrier Recovery, and Data Detection in the Presence of Phase Noise in OFDM Relay Systems）-Channel Estimation, Carrier Recovery, and Data Detection in the Presence of Phase Noise in OFDM Relay Systems
times_four_carrier_recovery
- 实现了OFDM信号的四倍载波恢复，通过带通，滤出4fc。-Four times to achieve the OFDM signal carrier recovery, through a bandpass filtered off 4fc.
BPSK_Costas
- 使用科斯塔环的方法实现基于BPSK调制的载波恢复跟踪(Using Costas loop method to recovery and track carrier frequency of BPSK modulation signal)
CFRdemo
- Carrier Frequency Recovery from Sub-Nyquist Samples
costas loop for BPSK demod
- Costas loop for BPSK demodulation