Description: 基于小波变换的调制识别方法.里面包含如下内容：QAM、PSK、FSK、AM和OFDM信号源生成程序，基于小波变换的QAM、PSK和FSK信号分类算法的程序，利用小波变换区分OFDM信号与数字单载波信号的算法程序，利用OFDM信号自相关特性分类OFDM信号与模拟信号的算法的程序。-Based on Wavelet Transform modulation recognition method. Which contains the following elements: QAM, PSK, FSK, AM and OFDM signal source to generate procedures, based on wavelet transform QAM, PSK and FSK signal classification algorithm procedure, using wavelet transform to distinguish between OFDM signal and digital single-carrier signal algorithm procedure, the use of OFDM signal auto-correlation characteristics of OFDM signal classification algorithm with the analog signal process. Platform: |
Size: 39936 |
Author:raymond |
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Description: 空时分集Alamouti方案的matlab程序，还附有一个说明文档。对于理解STC很有帮助。-Alamouti Space Time Set matlab program procedures, the document is accompanied by a note. Helpful for understanding the STC. Platform: |
Size: 203776 |
Author:wu hao |
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Description: A matlab code that simulate wavelet based OFDM CDMA over multi path fading channel with covvolutional encoder. -A matlab code that simulate wavelet based OFDM CDMA over multi path fading channel with covvolutional encoder. Platform: |
Size: 3072 |
Author:almamori |
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Description: Describe OFDM system using wavelet transform. This paper are including of the advantages and disadvantages of OFDM system use wavelet transform. At the same time, comparing betweenDFT based OFDM and Wavelet base OFDM. Platform: |
Size: 330752 |
Author:Phan Thủ y |
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Description: 用小波变换思想,提出一种基于小波去噪的多输入多输出正交频分复用(MIMO-OFDM)系统信道估计方法。该方法首先利用最小二乘(LS)方法进行信道估计,然后对估计后的结果进行小波去噪处理。与传统最小二乘信道估计方法相比,该方法不需要预先知道信道的统计特性,信道估计性能有明显提高。-Based on wavelet transform,a method for MIMO-OFDM channel estimation with noise reduction is given,which is divided into DFT interpolation and noise reduction.Simulation experiments shows that,Compared with the traditional linear interpolation or DFT interpolation,the new method does not need any statistical characteristic of channel and it has good performance of channel estimation. Platform: |
Size: 206848 |
Author:王睿 |
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Description: 基于小波分析的BPSK的OFDM的分析，将对其的频谱进行分类及预测，-Based on the wavelet analysis of the analysis of BPSK OFDM, will the classification and prediction of the spectrum。
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Size: 1024 |
Author:xiaolinzhongzi |
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Description: OFDM is multicarrier modulation (MCM) technique which provides an efficient means to
handle high speed data streams on a multipath fading environment that causes ISI. Normally
OFDM is implemented using FFT and IFFT’s. To decrease the BW waste brought by adding
cyclic prefix, wavelet based OFDM is employed.-OFDM is multicarrier modulation (MCM) technique which provides an efficient means to
handle high speed data streams on a multipath fading environment that causes ISI. Normally
OFDM is implemented using FFT and IFFT’s. To decrease the BW waste brought by adding
cyclic prefix, wavelet based OFDM is employed. Platform: |
Size: 37888 |
Author:awatif |
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Description: OFDM is multicarrier modulation (MCM) technique [1] which provides an efficient means to
handle high speed data streams on a multipath fading environment that causes ISI. Normally
OFDM is implemented using FFT and IFFT’s. To decrease the BW waste [4] brought by adding
cyclic prefix, wavelet based OFDM is employed. Platform: |
Size: 1024 |
Author:awatif |
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Description: 采用了小波去噪的思想，dsSUUQE参数使用大量的有限元法求解偏微分方程，主要是基于mtlab的程序，MIMO OFDM matlab仿真,ZlgswoJ条件是小学期课程设计的题目，采用波束成形技术的BER计算。- Using wavelet denoising thought, dsSUUQE parameter Using a large number of finite element method to solve partial differential equations, Mainly based on the mtlab procedures, MIMO OFDM matlab simulation, ZlgswoJ condition Is the topic of the elementary school stage curriculum design, By applying the beam forming technology of BE. Platform: |
Size: 7168 |
Author:eqfztd |
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Description: 给出接收信号眼图及系统仿真误码率，有CDF三角函数曲线/三维曲线图，关于小波的matlab复合分析，在matlab环境中自动识别连通区域的大小,基于分段非线性权重值的Pso算法，搭建OFDM通信系统的框架。- The received signal is given eye and BER simulation systems, There CDF trigonometric curve/3D graphs, Matlab wavelet analysis on complex, Automatic identification in the matlab environment the size of the connected area, Based on piecewise nonlinear weight value Pso algorithm, Build a framework OFDM communication system. Platform: |
Size: 6144 |
Author:qmgzstjnu |
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Description: 基于人工神经网络的常用数字信号调制，采用加权网络中节点强度和权重都是幂率分布的模型，用MATLAB实现动态聚类或迭代自组织数据分析，模拟数据分析处理的过程，采用了小波去噪的思想，进行逐步线性回归，MIMO OFDM matlab仿真,包含位置式PID算法、积分分离式PID。- The commonly used digital signal modulation based on artificial neural network, Using weighted model nodes in the network strength and weight are power law distribution, Using MATLAB dynamic clustering or iterative self-organizing data analysis, Analog data analysis processing, Using wavelet denoising thought, Stepwise linear regression, MIMO OFDM matlab simulation, It contains positional PID algorithm, integral separate PID. Platform: |
Size: 7168 |
Author:ethbk |
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Description: 光纤陀螺输出误差的allan方差分析，搭建OFDM通信系统的框架，本程序的性能已经超过其他算法，基于SVPWM的三电平逆变的matlab仿真，构成不同频率的调制信号，调试通过可以使用，有小波分析的盲信号处理，复化三点Gauss-lengend公式求pi。- allan FOG output error variance analysis, Build a framework OFDM communication system, This program has exceeded the performance of other algorithms, Based on SVPWM three-level inverter matlab simulation, Constituting the modulated signals of different frequencies, Debugging can be used, There Wavelet Analysis Blind Signal Processing, Complex of three-point Gauss-lengend the Formula pi. Platform: |
Size: 14336 |
Author:xdqvxfdnc |
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Description: It has a wealth of parameter options, Based on wavelet transform digital watermarking algorithm matlab code, Sampling from a priori probability, calculate the weight. Platform: |
Size: 151552 |
Author:赵小平
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Description: Based on wavelet transform digital watermarking algorithm matlab code, MIT Artificial Intelligence Laboratory identification of the target source, It uses a pulse of consumer law. Platform: |
Size: 151552 |
Author:党昆侠
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Description: 程序实现的主要功能：
OFDM调制识别：研究了基于高阶累量和基于小波变换的OFDM信号和单载波调制信号的识别算法，仿真分析了两种算法在高斯信道和多径瑞利衰落信道下的信号识别性能。
OFDM参数估计：研究了基于Welch算法和AR模型法求解功率谱进而估计信号带宽的算法，对两种算法的估计性能进行了比较；根据OFDM信号的循环平稳性研究了基于循环谱的载频估计算法；根据 OFDM信号的自相关性研究了基于可变延时自相关和固定延时自相关的FFT相结合的算法，估计了OFDM信号的有效数据长度、符号总长度、循环前缀长度和子载波间隔；最后研究了基于带宽和基于过采样估计子载波数目两种算法，并在高斯信道和多径瑞利衰落信道下对以上参数估计算法进行了仿真分析。
其中OFDM_DEMO为整个项目的程序入口，其余均为辅助函数，每一个函数均有参数注释和功能说明。(The main functions of the program are as follows:
OFDM modulation recognition: the recognition algorithms of OFDM signal and single carrier modulation signal based on high-order cumulant and wavelet transform are studied. The signal recognition performance of the two algorithms in Gaussian channel and multi-path Rayleigh fading channel is simulated and analyzed.) Platform: |
Size: 37888 |
Author:奥奥奥奥利奥 |
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