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OFDMsystem
- 正交频分复用技术是近年来发展起来的新技术,在高速无线数据传输领域有很大的应用前景。文章在分析和总结相关文献的基础上,介绍了正交频分复用(OFDM)技术的发展历史,讨论了正交频分复用技术的基本原理和实现方法。通过分析表明,在高速无线通信中OFDM对于消除符号间干扰(ISI),降低系统的复杂度等方面具有很大优势。正交频分复用(OFDM)是一种多载波宽带数字调制技术,它能有效地克服传输中的多径干扰和消除码间串扰,适合于高速率的地面信道视频传输。本文就OFDM技术进行了较为详尽的分析,并对OFDM的传输
BPModulationClassification
- 采用BP神经网络算法进行调制样式识别的Matlab代码-Using BP neural network pattern recognition algorithm Matlab code modulation
moulation_classification
- 主要是实现调制识别，区分几种常用的数字调制信号。含有两个文件夹 其一为特征参数的仿真；其二为正确识别率的仿真。-Mainly to achieve modulation recognition, distinction of several commonly used digital modulation signals. One folder contains two characteristic parameters for the simulation second simulation
QPSKtiaozheiofdmfangzhen
- QPSK调制的ofdm仿真，采用matlab语言编写，忽略了信道估计等部分。-QPSK modulation ofdm simulation using matlab language, ignore the part of the channel estimation.
QPSK
- 基于matlab的QPSK调制及其误码率曲线-QPSK modulation and the bit error rate curve
MUTLABDSB
- matlab实现通信中DSB调制。程序中相关数据不同，请根据自己需要修改。-DSB modulation matlab to achieve communication. Process data are different, modify according to their needs.
a
- 一个关于FM收音机的程序，里面包括FM调制解调，以及PLL模块，并在SIMULIN内实现仿真。-A program on FM radio, which includes FM modulation and demodulation, and PLL module, and simulation within the SIMULIN.
pcm
- 脉冲编码调制(PCM)实现 编程实现PCM技术的三个过程：采样、量化与编码。 采样：低通连续信号采样，以 x=sin(200*t) m=x./(200*t) m=m.*m 为例说明低通采样定理，绘出信号时、频图形；带通连续信号采样，以x=sin(20*t) m=x./t 为例说明带通采样定理，绘出信号时、频图形。 量化：均匀量化，以幅度 的正弦信号为例实现为64级电平的均匀量化；非均匀量化，输入A律PCM编码器的正弦信号 ，采样序列为 ，将其进行PCM编码，给出编码器的输出码组序列
uncoded
- 基于高斯白噪声信道采用M-QAM调制技术的系统，分组错误概率与信噪比函数关系的matlab仿真程序-Gaussian white noise channel with M-QAM modulation system, packet error probability and SNR function of matlab simulation program
modulation
- in this program all modulation technique like ASK,FSK,PSK etc are implimented
Modulation
- 对无线通信中调制部分进行了C语言描述，很详细，请大家下载-Modulation for wireless communication part of the C language described in great detail, please download
s_2FSK
- 利用MATLAB/simulink实现2FSK调制-Using matlab simulink for simulation modulation 2FSK
wavelength-modulation
- 半导体激光频率调制和波长调制光谱的理论技术描述-Theoretical descr iption of frequency modulation and wavelength modulation spectroscopy
channel
- channel prediction for adaptive modulation in wireless communication
ofdm-modulation
- 该文档为一个实现ofdm子载波调制和解调的代码，利用QPSK和16QAM两种方式实现，并附有运行结果。-This document is an implementation of ofdm subcarrier modulation and demodulation of the code, the use of QPSK and 16QAM two ways, along with operating results.
Modulation
- 此程序涵盖了常见的五种参数的生产程序，并有常见的数字信号的调制生产程序-This program covers the five common parameters of the production process, and a common production process digital signal modulation
Script-for-computing-the-BER-for-BPSK-modulation-
- scr ipt for computing the BER for BPSK modulation in a Rayleigh fading channel-scr ipt for computing the BER for BPSK modulation in a Rayleigh fading channel
digital-modulation
- 三种不同的数字调制解调，分别产生PSK,QAM，16QAM，32QAM等-three different digital modulations, which produces PSK,QAM,16QAM,32QAM and so on
Pulse-Width-Modulation
- Pulse Width Modulation circuits for Sinusoidal PWM & Multiple PWM
conf_69_HSK_May_2004
- Efficient Subcarrier and Bit Allocation Algorithm for OFDMA System with Adaptive Modulation