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baseband-signal_ofdm
- 一个OFDM 基带信号，采用256点IFFT,子载波采用8PSK映射,加保护段，调制信号采用“削顶”方法降低PAPR,FIR 半带滤波，最后输出时域信号/频域响应。包含各级的视频域比较-An OFDM baseband signal, using the 256-point IFFT, the sub-carrier using 8PSK mapping, plus the protection section, the modulated signal " cut top"
Timing
- 此为时域均衡的程序，主要用于OFDM接收系统，用verilog编写，很好-This time domain equalization program, mainly for OFDM receiving system, written in verilog good
basic_ofdm_inter
- basic ofdm with interlever: The transmitter section converts digital data to be transmitted, into a mapping of subcarrier amplitude and phase. It then transforms this spectral representation of the data into the time domain using an Inverse D
OFDMAsingalTimedomain
- OFDM A signal in Time domain
Demo
- OFDM仿真代码 时域及频域波形的实现代码-OFDM simulation code time domain and frequency domain waveform implementation code
homework2
- 通信系统与仿真作业： 1）设计π/4-DPSK或16-QAM调制器仿真程序， 画出时域波形、 正交分量、同相分量波形，眼图，散点图等。 2）利用MATLAB进行DPSK在高斯信道下的BER性能仿真，并将结果与PSK性能进行比较。 3）已知 OFDM的数据传输速率为19.2Kbps， OFDM 符号长度为320，保护间隔为32点，子载波数为128，IFFT/FFT点数为256，载波频率320KHz，调制方案采用QPSK，仿真其在高斯信道下的BER性能。 -Communication
OFDMAsingalTimedomain
- This program describes the ofdm subcarrier allocation in time domain
pts_paprofdm
- pARTIAL TRANSMIT SEQUENCE is very effective technique for papr reduction in OFDM.It divide OFDM sequence into several disjoint sub sequences and convert to time domain then Combine with complex phase factors to reduce PAPR.In this code matlab simul
QPSKOFDM
- 加窗QPSK-OFDM调制解调，每个OFDM符号采用QPSK调制方式，并画出了时域对比图-Windowed QPSK-OFDM modulation and demodulation, each OFDM symbol using QPSK modulation and a time-domain comparison chart shown
ofdm_mod
- ofdm系统仿真实现 OFDM符号的时域波形 频域波形 仿真图形-ofdm system simulation OFDM symbol in the time domain waveforms in the frequency domain waveform simulation graphics
pure_OFDM
- The inherent robustness of OFDM against multipath effects makes it an excellent choice for situations where multiple transmitters are used simultaneously (to avoid shadowing effects) and a path difference to the receiver exists. One of the ma
LTE_TX_PDSCH
- The inherent robustness of OFDM against multipath effects makes it an excellent choice for situations where multiple transmitters are used simultaneously (to avoid shadowing effects) and a path difference to the receiver exists. One of the ma
97325516
- A Novel Time and Frequency Synchronization Scheme for OFDM Systems A new training symbol is designed and a novel time and frequency synchronization scheme for orthogonal frequency division multiplexing systems is proposed. The time synchroniza
LTE-packet
- In Modulation schemes such as OFDM transmitter time domain signal will have higher PAPR, which leads to various distortions in the transmitter chain and degradation of system performance i.e. BER/PER. Also requires highly linear power amplifier which
code
- ofdm time and frequency domain representation
ofdm_paper4
- Power Allocation and Time-Domain Artificial Noise Design for Wiretap OFDM with Discrete Inputs
OFDM_matlab
- 该程序基本涵盖了OFDM-16QAM系统传输的全过程，除了调制解调外，有添加循环前缀，加窗的过程。生成图像有各个阶段的时域、频域图，以及发射前后的星座图。-This basically covers the whole process of OFDM transmission- 16 qam system, in addition to the modem, have add cyclic prefix, plus the window procedure. Generate the image
CFO_estimation_v1.0
- OFDM系统中通过时域（CP）以及频域（Moose/Classen算法）进行CFO估计算法-Time-domain CP based method and Frequency-domain (Moose/Classen) methods in OFDM system
CFO_estimation
- OFDM系统，时域/频域CFO估计技术MATLAB程序-OFDM systems, time-domain/frequency domain CFO estimation MATLAB program
OFDM_rece_matlab
- 接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。 首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计