Description: 改进的SLM算法，用于降低OFDM系统的峰值平均功率比-Improved algorithms for OFDM system to reduce the peak-to-average power ratio Platform: |
Size: 254976 |
Author:guoxu |
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Description: OFDM系统中用SLM算法降低系统的峰值平均功率比-SLM OFDM system using the algorithm to reduce peak-to-average power ratio Platform: |
Size: 1024 |
Author:guoxu |
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Description: OFDM系统中用限幅法降低系统的峰值平均功率比-OFDM system limiting method used to reduce the peak-to-average power ratio Platform: |
Size: 1024 |
Author:guoxu |
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Description: OFDM系统中用PTS算法降低系统的峰值平均功率比-OFDM system PTS algorithm used to reduce the peak-to-average power ratio Platform: |
Size: 1024 |
Author:guoxu |
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Description: OFDM信号具有高峰均功率比的特点，研究交织技术在抑制OFDM信号峰值平均功率比（PAPR）中的应用。论文首先阐述了OFDM的基本原理和关键技术，简单介绍了目前降低PAPR的几种方法，在对交织法降低OFDM系统的PAPR进行理论分析的基础上，提出了一套合理的交织方案――利用分组交织器和伪随机交织器降低PAPR，最后通过MATLAB仿真得出结论。-OFDM signal has a peak to average power ratio characteristic of interwoven OFDM technology in the inhibitory signal peak-average power ratio (PAPR) of the application. Thesis first expounded the basic principles of OFDM and key technologies, the simple introduction of the current of several methods to reduce PAPR, intertwined in the law to reduce PAPR of OFDM system, the theoretical analysis, based on a set of reasonable intertwined programs- use Packet interleaver and the pseudo-random interleaver to reduce PAPR, the final conclusion through MATLAB simulation. Platform: |
Size: 1024 |
Author:wu |
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Description: PAPR降低算法PTS和SLM源代码,降低峰值平均功率比的多载波调制的选择性映射-PAPR algorithm PTS and SLM to reduce the source code, reducing the peak-average power ratio of multicarrier modulation selective mapping Platform: |
Size: 2048 |
Author:sxb |
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Description: OnPerformanceLimitsofDFTSpreadOFDMSystems
DFT Spread OFDM has been proposed recently to
reduce the Peak to Average Power Ratio (PAPR) of conventional
OFDM transmission. Besides PAPR reduction, an important
implication of DFT Spreading is that the independent parallel
sub-channels between the sub-carriers cease to exist. This in
turn leads to difference in its performance limits as compared to
the conventional OFDM system. This paper analyzes the error
probabilities of DFT Spread OFDM systems, and derives their
analytical closed form expressions for the AWGN, fading AWGN,
multipath and fading multipath channel scenarios. Simulation
results presented in last section confirm the validity of the derived
analytical expressions. Platform: |
Size: 2151424 |
Author:ashokec |
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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 Platform: |
Size: 2681856 |
Author:daidaohan |
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Description: PTS与限幅结合降低OFDM峰均比的改进算法.提出了一种基于部分传输序列（PTS）算法和限幅算法相结合的改进算法来降低正交频分复用（OFDM）系统的峰均功率比（PAPR）。-Improved Algorithm of Combination of PTS and Clipping to Reduce PAPR in OFDM System
In this paper, an improved algorithm is proposed based on Partial Transmit Sequence (PTS) and clipping to reduce Peak to Average Power Ratio(PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) system. Platform: |
Size: 203776 |
Author:阿帮 |
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Description: 基于 PTS 级联抵消的峰均比抑制性能仿真.提出了 PTS 级联抵消算法，实现对地面数字多媒体广播系统中时域同步正交频分复用信号的峰均功率比的抑制-Simulation on PAPR Improvement Based on Joint Scheme of PTS and Peak-cancellation.
New joint scheme of partial transmit sequence (PTS) and peak-cancellation technique was proposed to reduce the peak-to-average power ratio of time-domain synchronous OFDM signals in terrestrial digital multimedia/TV broadcasting system. Platform: |
Size: 630784 |
Author:阿帮 |
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Description: PTS法降低OFDM系统峰值平均功率比的源代码-OFDM system PTS method to reduce peak to average power ratio of the source code Platform: |
Size: 1024 |
Author:cjc |
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Description: 着重介绍了OFDM 系统
中的峰值平均功率比（PAR）问题，给出了峰值平均功率比的定义以及高PAR 产
生的原因和它带来的问题，并且分析了OFDM 系统内PAR 的分布，最后对国内
外各种降低PAPR 的方法进行了简单介绍。-Focuses on the OFDM system
The peak to average power ratio (PAR), and gives the definition of peak to average power ratio and high PAR production
Health reasons and problems it brings, and the analysis of the distribution of the PAR of OFDM system, the last of the domestic
A variety of methods to reduce PAPR outside a brief introduction. Platform: |
Size: 4237312 |
Author:liufang |
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Description: 着重介绍了OFDM 系统
中的峰值平均功率比（PAR）问题，给出了峰值平均功率比的定义以及高PAR 产
生的原因和它带来的问题，并且分析了OFDM 系统内PAR 的分布，最后对国内
外各种降低PAPR 的方法进行了简单介绍。-Focuses on the OFDM system
The peak to average power ratio (PAR), and gives the definition of peak to average power ratio and high PAR production
Health reasons and problems it brings, and the analysis of the distribution of the PAR of OFDM system, the last of the domestic
A variety of methods to reduce PAPR outside a brief introduction. Platform: |
Size: 1135616 |
Author:liufang |
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Description: 降低峰均功率比的程序，pts方法，调试通过-Reduce the peak to average power ratio of the program, pts method, debugging through Platform: |
Size: 1024 |
Author:于平 |
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Description: The Peak to power Average Ratio is a main design consideration of OFDM,
which causes a degradation problem when a power amplifier is used. A combined algorithm
commanding technique and then the signal pass through all pass filters. This Reduces the
PAPR. The Companding transform is used to reduce the PAPR ratio without affection the
parameters of OFDM. Platform: |
Size: 256000 |
Author:redami |
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Description: 正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。-Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc Platform: |
Size: 142336 |
Author:num113 |
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Description: 使用PTS算法降低峰均比，提高OFDM通信系统通信质量，降低误码率(Using PTS algorithm to reduce the peak to average ratio, improve the communication quality of OFDM communication system and reduce the bit error rate) Platform: |
Size: 2048 |
Author:cristtting
|
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Search - Reduce Peak-to average ratio of OFDM