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Description: Matlab入门级OFDM仿真，包括每个步骤的波形，星座图，频谱等
含循环前后缀，时域加窗等，适合刚接触OFDM的学习
-Matlab entry-level OFDM simulation, including each step of the waveform, constellation diagram, spectrum including cycles before the suffix, such as time-domain windowing for OFDM new to the learning
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Author: the13thstone |
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Description: 峰值抵消算法的基本思想是：在OFDM信号上叠加一个由一系列加权参考函数组成的峰值抵消信号，通过抵消函数的选取以及权值计算，使得抵消信号尽可能消除超过门限的信号幅值。常见的参考函数分为脉冲函数和其他窗函数两类。- T. May, H. Rohling. Reducing the peak-to-average power ratio in OFDM radio transmission systems. IEEE Vehicular Technology Conference (VTC), May 1998, Ottawa Canada, 3: 2474-2478
A. Geert Arnout, van N. Richard D., de W. Arnout Hendrik. Transmission system and method employing peak cancellation to reduce the peak-to-avrage power ratio. US Patent 6175551, Issued on January 16, 2001
S. K. Cha, M. H. Park, S. G. LEE, et al. A new PAPR reduction technique for OFDM systems using advanced peak windowing method. IEEE Trans. Consum. Electron., 2008, 54(2): 405-410
G. G. Chen, R. Ansari, Y. W. Yao. Improved peak windowing for PAPR reduction in OFDM. IEEE Vehicular Technology Conference, Apr. 2009, Barcelona, Spain
H. Kuo, S.W. Cheung. Optimization of windowing and peak-windowing techniques for WCDMA systems. IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse France, 4: IV313-IV316
O. Vä ä nä nen, J. Vankka, K. Halonen. Simpl
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Author: daidaohan |
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Description: matlab的OFDM 通信系统仿真源程序，m文件的，含循环前后缀，时域加窗等，适合刚接触OFDM的学习
采用qpsk调制和OFDM方式调制的对比-The OFDM communication system simulation matlab source, m file, with circulation before the suffix, such as time-domain windowing for OFDM new learner
Qpsk modulation and OFDM method using the contrast modulation
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Size: 91136 |
Author: 张晋芳 |
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Description: A new PAPR reduction technique for OFDM systems using advanced peak windowing method.PDF
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Size: 1181696 |
Author: mary |
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Description: 基于ofdm的窗口技术-OFDM with windowing
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Size: 10240 |
Author: fanjun |
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Description: Matlab入门级OFDM仿真，包括每个步骤的波形，星座图图，频谱等含循环前后缀，时域加窗等，适合刚接触OFDM的学习
-Matlab entry-level OFDM simulation, including each step of the waveform, constellation Figure, spectrum containing cycle before the suffix, time-domain windowing suitable new to OFDM learning
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Size: 12288 |
Author: baress |
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Description: 采用16QAM函数编写的OFDM程序，程序思路清晰，按照OFDM通信系统编写，同时考虑前缀和加窗函数的效果。-here,I ｃｒｅａｔ ａ program ｆｏｒ OFDM ｗｉｔｈ １６ＱＡＭ ｍｏｄｕｌａｔｉｏｎ, program ideas ａｒｅ ｃｌｅａｒ, prepared in accordance with the OFDM communication system, taking into account the effect of the prefix and windowing functions.
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Size: 7168 |
Author: huangwei |
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Description: 这是一个完整的OFDM系统建模，包括主程序OFDM 调制模块，解调模块，调制解调模块中包括BPSK,QPSK,16QAM,64QAM, 主程序包括循环前缀添加，加窗处理，频谱图、PAPR计算，误码率统计等功能。-This is a complete OFDM system modeling, including main program OFDM modulation module, a demodulation module, modulation and demodulation module include BPSK, QPSK, 16QAM, 64QAM, main program includes the cyclic prefix, windowing processing, the spectrum, PAPRcalculate the error rate statistics and other functions.
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Size: 6144 |
Author: huangwei |
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Description:
reduction to papr in ofdm with Peak Windowing:
The basic idea of peak windowing is to multiply the envelope of OFDM
signal with a weighting function . Therefore,
~xE (t)= xE (t) f (t)
where
XE(t) =[x(t)]
The weighting function given by:
f (t)= 1-Σ α .w(t- t )
t-t
w(t) : is the window function.
t : denotes the position of a local maximum of the envelop xE(t) .
α : attenuation constant .
When the amplitude of envelop amplitude of the OFDM signal exceeds a threshold, a window function is applied to the envelop of the OFDM signal to eliminate the peak amplitude. windowing results in a smooth signal.
Hanning window function will be used for w(t)
As a matter of fact , other windows such as cosine, hamming and Kaiser may be employed.
-
reduction to papr in ofdm with Peak Windowing:
The basic idea of peak windowing is to multiply the envelope of OFDM
signal with a weighting function . Therefore,
~xE (t)= xE (t) f (t)
where
XE(t) =[x(t)]
The weighting function given by:
f (t)= 1-Σ α .w(t- t )
t-t
w(t) : is the window function.
t : denotes the position of a local maximum of the envelop xE(t) .
α : attenuation constant .
When the amplitude of envelop amplitude of the OFDM signal exceeds a threshold, a window function is applied to the envelop of the OFDM signal to eliminate the peak amplitude. windowing results in a smooth signal.
Hanning window function will be used for w(t)
As a matter of fact , other windows such as cosine, hamming and Kaiser may be employed.
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Size: 2048 |
Author: asmaa |
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Description: 正交频分复用(OFDM) 是第四代移动通信的核心技术。该文首先简要介绍了OFDM的发展状况及基本原理, 文章对OFDM 系统调制与解调技术进行了解析，得到了OFDM 符号的一般表达式，给出了OFDM 系统参数设计公式和加窗技术的原理及基于IFFT/FFT 实现的OFDM 系统模型。-Orthogonal frequency division multiplexing (OFDM) is the fourth generation mobile communication core technology. The article briefly describes the development of OFDM and the basic principles, the article OFDM system modulation and demodulation techniques are parsed to obtain a general expression of OFDM symbols, OFDM system design parameters are given formula and windowing technology works and based on the IFFT/FFT OFDM system model implemented.
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Size: 656384 |
Author: 曾福来 |
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Description: 关于OFDM的16QAM的调制和相关性能比较，使用了循环前缀和加窗来消除干扰。-About OFDM modulation of 16QAM and associated performance, use a cyclic prefix and windowing to eliminate interference.
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Size: 5120 |
Author: meng |
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Description: 关于OFDM的调制仿真，其中使用是QPSK调制，包含FFT、循环前缀、加窗等基本过程。-OFDM modulation on the simulation, in which a QPSK modulation, contains the basic process FFT, cyclic prefix, windowing and so on.
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Size: 3072 |
Author: meng |
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Description: 基于hdl的ofdm基带处理器发射机的设计与实现
包括 工作时钟 主控单元 导频插入 长短训练序列生成 data符号调制 循环前缀与加窗处理 IFFT/FFT 信道编码 扰码模块等-Hdl of ofdm transmitter baseband processor based design and implementation including work clock master unit pilot insertion length of the training sequence generated data symbol modulated cyclic prefix and windowing IFFT/FFT channel coding scrambling module,
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Size: 2598912 |
Author: 郭俊 |
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Description: ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，完整的基于HMM的语音识别系统，使用起来非常方便。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, Complete HMM-based speech recognition system, Very convenient to use.
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Size: 6144 |
Author: 田晓伟 |
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Description: 实现了对10个数字音的识别，利用自然梯度算法，ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块。- To achieve the recognition of 10 digital sound, Use of natural gradient algorithm, ofdm system simulation including 16qam modulation fft windowing modules plus cp.
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Size: 6144 |
Author: 赵万 |
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Description: 基于kaiser窗的双谱线插值FFT谐波分析，插值与拟合的matlab实现，ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块。- Dual-line interpolation FFT harmonic analysis kaiser windows, Interpolation and fitting matlab implementation, ofdm system simulation including 16qam modulation fft windowing modules plus cp.
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Size: 6144 |
Author: 刘发霞 |
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Description: 线性调频脉冲压缩的Matlab程序,分析了该信号的时域、频域、倒谱，循环谱等,ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块。- LFM pulse compression of the Matlab program, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. ofdm system simulation including 16qam modulation fft windowing modules plus cp.
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Size: 5120 |
Author: 陈长民 |
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Description: ofdm system simulation including 16qam modulation fft windowing modules plus cp, Noisy pulse correlation detection signal, Including the area, perimeter, rectangular, elongation.
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Size: 151552 |
Author: 王焕
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Description: 一个OFDM系统的仿真：信号的产生、调制、加循环前缀、加窗、并串转换等(The simulation of a OFDM system: signal generation, modulation, adding cyclic prefix, windowing, parallel string conversion, etc.)
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Size: 2048 |
Author: haibenben
|
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Description: 这是一个完整的OFDM系统建模，包括主程序OFDM 调制模块，解调模块，调制解调模块中包括BPSK,QPSK,16QAM,64QAM, 主程序包括循环前缀添加，加窗处理，频谱图、PAPR计算，误码率统计等功能。(This is a complete OFDM system modeling, including main program OFDM modulation module, a demodulation module, modulation and demodulation module include BPSK, QPSK, 16QAM, 64QAM, main program includes the cyclic prefix, windowing processing, the spectrum, PAPRcalculate the error rate statistics and other functions.))
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Size: 7168 |
Author: 本来我也是小傲娇 |
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