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Description: uising different ICI self-cancellation scheme to see its performance-uising different ICI self-cancellation s cheme to see its performance
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Size: 60416 |
Author: 俞正元 |
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Description: 把地理区域分成一个个小区，蜂窝系统在该区域内提供无线覆盖。把可用的频谱分成很多信道，每个小区分配一组信道。使用频分双工（FDD）。在小区间进行频率利用，N个小区构成一个簇，簇间进行频率复用。定义了传播特性（信道参数）以及同频小区的位置。信道的参数包括：小区半径，路径损耗指数，以分贝为单位的对数正态阴影的标准差，基站发射功率级，移动台发射功率级，每个小区的扇区数，扇区化天线的正反向比，要仿真的瞬时位置的组数，同频干扰阈值。-To a geographical area is divided into small areas, cellular systems in the region to provide wireless coverage. The available spectrum is divided into multi-channel, each plot the distribution of a group of channels. The use of frequency division duplex (FDD). In the district between the frequency of use, N plots constitute a cluster, cluster between frequency reuse. The definition of the propagation characteristics (channel parameters), as well as with the frequency of residential location. Channel parameters include: cell radius, path loss index to decibels for units Lognormal shadow of the standard deviation, the base station transmitter power level, mobile station transmitting power level, the number of sectors in each district, sector of the antenna the pros and cons to the ratio, to the transient simulation of the group a few positions, the same frequency interference threshold.
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Size: 2048 |
Author: mame |
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Description: LASIP局部多项式逼近算法用于二维信号处理、图像复原，图像去噪的MATLAB实现。-LASIP local polynomial approximation algorithm for two-dimensional signal processing, image restoration, Image Denoising MATLAB to achieve.
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Size: 1005568 |
Author: 邓玥琳 |
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Description: ofdm ici self cancelation fah imp
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Size: 2048 |
Author: fahabb |
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Description: OFdm ici fah imp very good
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Size: 1025024 |
Author: fahabb |
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Description: OFDM系统同步中的定时估计算法，主要使用了极大似然估计法。此程序实现极大似然估计法定时的程序。-OFDM system, synchronization of timing estimation algorithm, the main use of maximum likelihood estimation method. Realize this procedure maximum likelihood estimation when the statutory procedures.
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Size: 3072 |
Author: 张彩 |
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Description: 直接序列扩频的相关文章及matlab程序，以及ofdm中ici消除的论文。-Direct Sequence Spread Spectrum matlab relevant articles and procedures, as well as the elimination of ofdm thesis in ici.
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Size: 694272 |
Author: garfield |
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Description:
应用OFDM可以有效地对抗多径时延扩展。循环前缀不仅可以消除符号间干扰（ISI），还能消除子载波间干扰（ICI).本项目完整地仿真了OFDM系统。-Application of OFDM can effectively combat multipath delay spread. Cyclic prefix can not only eliminate inter-symbol interference (ISI), can eliminate Inter-carrier interference (ICI). This project a complete simulation of the OFDM system.
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Size: 41984 |
Author: 吏继斌 |
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Description: 使用ICI自我相消的2種方法:分別是標準OFDM通訊系統下沒有使用ICI下，和使用ICI調變在OFDM通訊系統下 及指使用ICI解調變的ICI係數大小比較-The use of ICI self-phase elimination of two kinds of methods: namely the standard OFDM communication system is not used under the ICI, the modulation and the use of ICI in the OFDM communication system, and refers to the use of ICI under the demodulation of the ICI coefficient of more
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Size: 11264 |
Author: 鄭令儀 |
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Description: 分析了相位噪声对正交频分复用(OFDM)系统的影响,发现相位噪声不仅产生
通用相角错误(CPE),而且还会产生载波间干扰(ICI),这都使OFDM系统的性能急剧恶
化,因此必须对CPE和ICI进行校正.文中给出了基于MSE准则的CPE校正方法,考虑到
ICI干扰主要来源于相邻信道,进而提出了基于LMS法则的自适应相邻信道干扰消除方
法.整个算法简单高效.仿真结果表明,所提出的算法大大改善了OFDM系统的性能-Analysis of phase noise on the orthogonal frequency division multiplexing (OFDM) system, the impact of phase noise was found not only from the general phase angle error (CPE), but also generate inter-carrier interference (ICI), which are so dramatically the performance of OFDM system worse, it is necessary CPE and ICI correction. This paper gives guidelines for CPE-based MSE correction methods, taking into account ICI mainly come from the adjacent channel interference, then presents a rule-based LMS adaptive adjacent channel interference cancellation method. the algorithm is simple and efficient. The simulation results show that the proposed algorithm greatly improved the performance of OFDM systems
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Size: 44032 |
Author: sunkai |
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Description: 正交频分复用其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。-Orthogonal Frequency Division Multiplexing
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Size: 23552 |
Author: 江佩 |
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Description:
The LASIP routines for Color Filter Array Interpolation based on LPA-ICI:
- CFAI for noiseless data
- adaptation for noisy data
- CFAI for noisy data based on directional cross-color filters.-
The LASIP routines for Color Filter Array Interpolation based on LPA-ICI:
- CFAI for noiseless data
- adaptation for noisy data
- CFAI for noisy data based on directional cross-color filters.
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Size: 122880 |
Author: mythu |
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Description: 该文档介绍了高速移动情况下，由于多普勒频移导致的ICI干扰问题。描述了问题的产生，解决的算法，并附有自消除、最大似然估计、卡曼滤波参数估计的matlab仿真-introuces the ICI problem in high-speed mobile radion channel.Describe the reasons ,algorithms,such as Self-cancellation,ML,Kalman.And the M files
are atteched
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Size: 390144 |
Author: 夜思明 |
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Description: OFDM,实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。在向B3G/4G演进的过程中，OFDM是关键的技术之一，可以结合分集，时空编码，干扰和信道间干扰抑制以及智能天线技术，最大限度的提高了系统性能。-OFDM
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Size: 6144 |
Author: 王龙 |
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Description: OF,实际上OF是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。在向B3G/4G演进的过程中，OFDM是关键的技术之一，可以结合分集，时空编码，干扰和信道间干扰抑制以及智能天线技术，最大限度的提高了系统性能。-OF
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Size: 6144 |
Author: 王龙 |
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Description: this reports explain the effect of ICI in ofdm with matlab code.
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Size: 441344 |
Author: cyber |
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Description: ICI自消除算法中的CIR画图，利用matlab软件-ICI self-cancellation algorithm of CIR drawing
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Size: 1024 |
Author: 于天泽 |
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Description: matlab软件编程实现ICI自消除中峰值变化。-matlab software programming ICI to self eliminate the peak changes.
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Size: 1024 |
Author: 于天泽 |
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Description: 扩频通信在现代无线通信技术中是一种具有较强抗干扰性能的技术，正交频分复用(OFDM)一种具有较高数据传输速率和频谱利用率，并能有效对抗频率选择性衰落的多载波调制技术，因而将这二者结合起来构建系统势必会进一步提高系统的抗干扰和抗衰落性能，研究其结合技术也逐渐成为无线通信领域的热点。随着3G的兴起，即将推出的LTE也将采用OFDM技术（正交频分多路复用）。
由于OFDM的多载波特性，使得直接序列扩频技术和跳频技术能够与OFDM技术进行有效的结合。在本文中,我们研究了OFDM）以及相关抗干扰抗衰落技术。同时用matlab进行了仿真，仿真结果表明，本文提出的ICI干扰消除技术在ofdm中起到了很好的效果。
-In modern wireless communication technologies, spread spectrum communication is a kind of strong anti-jamming technology, the performance of orthogonal frequency division multiplexing (OFDM) is a kind of high data rate and spectrum efficiency, and can be effective against frequency selective fading of multi-carrier modulation technology, and combine the two build system is bound to further improve the system s anti-interference and decay resistance, and study the combining technology also gradually become a hot spot in the field of wireless communications. With the development of 3 g, the upcoming LTE will also use OFDM (orthogonal frequency division multiplexing) technology.
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Size: 489472 |
Author: wfyan |
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Description: 从抗ISI和ICI的角度来讲，总是希望能量集中在时频格点附近，而扩散到其他格点的能量越小越好，TFL正是描述这一特性的最直接的方法，从滤波器的角度看，TFL特性描述两个滤波器之间的相关性，描述TFL特性的方法包括TFL函数和TFL参数两大类，TFL函数又包含瞬时相关函数、模糊函数和干扰函数，而TFL参数包括Heisenberg参数和方向参数。
本代码使用matlab仿真常见的高斯、IOTA和HSIN等滤波器，与矩形滤波器进行对比与分析。(This code uses MATLAB to simulate common filters such as Gauss, IOTA and HSIN, and compares and analyzes rectangular filters.)
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Size: 1061888 |
Author: 圆妮
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