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Description: OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。-OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced.
Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results.
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Size: 7168 |
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Description: mips大端平台busybox，里面包含telnet、ping、tftp、ssh、ifconfig、cat、ls等常用命令-mips big endian platform busybox, which contains the telnet, ping, the tftp, ssh, ifconfig, cat, the ls and other commonly used commands
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Size: 1676288 |
Author: 查云 |
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Description: LS-SVM toolbox 里面集合了所有的最小二乘法支持向量机的工具函数，可以直接调用。-LS-SVM toolbox里面集合了所有的最小二乘法支持向量机的工具函数，可以直接调用。
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Size: 122880 |
Author: 任超 |
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Description: FTP文件上传程序包，VS2005下开发，简单方便-FTP file upload package, developed under the VS2005 easy
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Size: 261120 |
Author: hjh |
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Description: Tripwire是一款最为常用的开放源码的完整性检查工具，可用于实现安全管理系统，它生成目标文件的校验和并周期性的检查文件是否被更改。下面我们简单介绍一下Tripwire的运行机理。与大多数完整性检查程序相同，对于需要监视的文件，Tripwire会使用校验和来为文件的某个状态生成唯一的标识（又称为"快照"），并将其存放起来以备后用。当Tripwire程序运行时，它先计算新的标识，并于存放的原标识加以比较，如果发现不匹配的话，它就报告系统管理人员文件已经被修改。接下来，系统管理员就可以利用这个不匹配来判断系统是否遭到了入侵。例如，如果Tripwire已经为/bin/login和/bin/ls存放了快照，那么对它们的尺寸、inode号、权限以及其他属性的任何修改，都逃不过Tripwire的火眼金睛。尤其是对于文件内容的修改，即使只改变了一个字节，Tripwire也能察觉得到，因为校验和是针对文件整体的。-Tripwire is a most commonly used open source integrity checking tool can be used to implement a safety management system, it generates the target file checksum and periodic check whether a file was changed. Here we briefly explain the operation mechanism of Tripwire. Most of the integrity checker, Tripwire will need to monitor the file
Uses a checksum to generate a unique identifier for a state of the file (also known as a "snapshot"), and store them for later use. When the Tripwire program runs, it first calculates the new identity, and to compare the original logo in storage, if we find do not match, it is the reporting system management personnel file has been
Modified. Next, the system administrator can use this match to determine whether the system was the invasion. For example, if Tripwire/bin/login and/bin/ls stored snapshot, then any modification of their size, inode number, permissions and other attributes, can not escape at Tripwire eyes. Modify the contents of the file, ev
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Size: 315392 |
Author: 王涛 |
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Description: 实现LTE下行信道估计，有LS、LMMSE、SVD-MMSE和线性插值、二阶插值、三次样条插值等算法-LTE downlink channel estimation, LS, LMMSE, SVD-MMSE and linear interpolation, second order interpolation, cubic spline interpolation algorithm
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Size: 19456 |
Author: xiaoqing |
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Description: 对VBLAST的MIMO_OFDM系统进行信道估计，估计的方法可以选择LS或则LMMSE。对于LS又可以选择三种不同的插值方法：线性的，高斯插值和DFT插值。另外对于均衡方法也可以选择ZF或者MSSE-uing LS and LMMSE to estimate VBLAST(2Tx*2Rx).What is more for LS there are three method can be chosen:Linear, Gaussi and DFT.
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Size: 8192 |
Author: 刘雅男 |
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Description: OFDM基于块状导频的信道估计算法仿真，包括LS LMMSE估计算法-Channel estimation algorithm for OFDM frequency block conduction simulation, including the LS LMMSE estimation algorithm
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Size: 1024 |
Author: cao yu |
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Description: 基于梳状导频的OFDM信道估计中LS算法的测试程序-LS algorithm testing program based on the the comb pilot of OFDM channel estimation
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Size: 2048 |
Author: lixiaojing |
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Description: 商业公司提供的LTE资源分配平台，可以可视的分析每个RB的占用情况-Commercial edition.The simulation will show you many detail message on resource used while the LTE system is running
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Size: 251904 |
Author: 王珂 |
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Description: ofdm信道估计仿真（ls算法，mmse算法，还有一种改进的的mmse算法lmmse，能直接在马特拉并上运行）
-The ofdm Channel Estimation Simulation (ls algorithm, the MMSE algorithm, there is a improved mmse algorithm lmmse directly in Matera and on the run)
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Size: 6144 |
Author: tiebos |
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Description: 一种基于matlab的支持向量机机小例子，用于预测，LS
-Based on matlab support vector machine machine small example, be used to predict, LS
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Size: 225280 |
Author: 面积 |
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Description: 用C语言实现unix/linux下 ls -l 命令，里面的注释都是英文的但比较容易读懂-Unix/linux using C language under the ls-l command inside the notes are in English, but relatively easy to read
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Size: 2048 |
Author: 龚堆 |
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Description: list all directories recursively
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Size: 1024 |
Author: Faruk |
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Description:
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Size: 203776 |
Author: mohit |
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Description: 信道估计LS法，从数据中将导频提取出来进行估计-LS channel estimate
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Size: 1024 |
Author: 邸娜 |
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Description: 改写bash4.1的bashhist.c部分内容，完成审计的直接向远端的发送，信息丰富如下：
PID=23244,PPID=23242,TIME=1348019885,TTY=/dev/pts/2,ORG=192.168.198.1,SRC=root,USER=root,DIR=/siem,CMD=ls -l-To rewrite bash4.1 the bashhist.c part to complete the audit sent directly to the remote, rich information is as follows: PID = 23244, PPID = 23242, TIME = 1,348,019,885 TTY =/dev/pts/2, ORG = 192.168. 198.1, SRC = root, USER = root, DIR =/siem, CMD = ls-l
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Size: 6919168 |
Author: holy |
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Description: 通过Matlab仿真，对有无信道估计对系统误码率的影响进行了比较，对LS和MMSE估计算法进行比较-Matlab simulation, whether the channel estimation system bit error rate compared with LS and MMSE estimation algorithm compares
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Size: 66560 |
Author: liwei |
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Description: 最小二乘拟合直线，通过一些测量数据拟合成一条直线
-Least-squares fitting a straight line, fit a straight line through measurement data
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Size: 1381376 |
Author: 西电 |
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Description: matalb程序编写横向剪切干涉最小二乘法波前拟合。-matalb programming lateral shearing interferometry method of least squares wavefront fitting.
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Size: 1024 |
Author: 冯鹏 |
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