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Early_late
- Symbol Timing Tracking Using Early-Late Techniques by matlab-Symbol Timing Tracking Using Early-Late T echniques by Matlab
8PSK_carrier_timing_est
- 8PSK信号载波相位符号定时联合估计程序-8PSK symbol timing signal joint estimation of carrier phase process
DSP
- 位同步也叫码元同步或比特同步，在数字通信系统中，接受端不论采用什么解调方式，都要用到码元同步。再模拟通信中不存在码元同步。我们知道消息是通过一连串的码元来表示并传递的，这些码元一般均具有相同的持续时间，接收端就收这些码元序列时，都必须知道每个码元的起该产生一个码元定时脉冲序列，-Bit synchronization code yuan, also known as synchronous or bit synchronization in digital communication syste
baseband_detection_simulink
- In this simulink model , baseband binary detection is simulated .A rectangular pulse shaped signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying
pam_detection_simulink
- In this simulink model , baseband 8-ary PAM detection is simulated .A half-sine pulse shaped PAM signal is given as input to the detector.The received signal is matched filtered and down-sampled .The effects of symbol timing offset can be seen by
QAM16_simulink
- In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is m
qpsk_simulink
- In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is mat
OFDM
- OFDM通信系统调制解调 包括数字前端处理、卷积编码、峰均值抑制、符号定时、频偏检测、信道估计、相位补偿等-OFDM modulation and demodulation communication system including digital front-end processing, convolution coding, the mean peak inhibition, symbol timing, frequency offset detection, channel estim
cpml_test
- 对OFDM系统中的基于循环前缀的符号定时同步进行了仿真。-On the OFDM system based on cyclic prefix for symbol timing synchronization is simulated.
OFDM
- 该模型实现了一个通用的OFDM TX和RX，这是不依赖于任何特定的行业标准。该模型的目标是开发和研究不断（不是“突发”）载波同步和定时跟踪方案。该技术纳入然后可以扩展和修改，以标准的具体通讯套件。该模型采用了“收购”技术，它利用了循环前缀相关属性，以赶在试图完成罚款跟踪算法一帧的边界粗略的估计。该模型实现了一个16点64循环前缀的OFDM载波波形。在OFDM符号有16个飞行员，3后卫音（0，带边幅），并使用45 QAM的剩余数据流4。 这包括最新型的衰落信道，误码率计算，并
The_shortwave_high-speed_QAM_signal_fast_without_j
- 一种短波高速QAM信号快速无抖动码元同步方案的设计,文章基于Gardner定时误差检测算法、预滤波和一阶过零检测锁相环理论,结合卡尔曼 滤波算法,设计了一种快速无抖动的短波高速QAM信号全数字解调码元同步方案,从理论上 推导了方案中各个参数的设置方法,并在不同的信道环境下测试算法的性能,仿真结果显示 该方案具有优良的性能。 -A short high-speed QAM signal symbol timing quickly without jitter in the desi
acomparativestudyofnondata-aidedsymboltimingrecov
- a comparative study of nondata-aided symbol timing recovery techniques for digital satellite communications
1
- 多天线正交频分复用(MIMO-OFDM,Multiple-Input and Multiple-Output Orthogonal Frequency Division Multiplex)系统中,精确的符号定时同步可使接收端解调数据时消除载波频率偏移和符号间干扰。而由于MIMO空间信道复杂度较高,使得单天线OFDM系统的同步方法不能直接应用于MIMO-OFDM系统中。提出的两步同步方法首先利用时域导频作为第一步同步进行粗同步,然后利用循环交织前缀作为第二步同步对每一个MIMO-OFDM符号进行
feedforward-MSK-demodulator
- A fully digital feedforward MSK demodulator with joint frequency offset and symbol timing estimation for burst mode mobile radio
sc算法
- Schmidl算法实现符号定时同步，和频偏估计。(Schmidl algorithm implements symbol timing synchronization and frequency offset estimation.)