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OFDM_m
完整的OFDM链路程序并作了较为具体的解析从基本的bpsk,qpsk,qam到实际的ofdm系统,cdma链路,mac层仿真分析.(Orthogonal frequency division multiplexing (OFDM) is becoming the chosen
modulation technique for wireless communications. OFDM can provide large data
rates with sufficient robustness to radio channel impairments. Many research centers
in the world have specialized teams working in the optimization of OFDM for
countless applications. Here, at the Georgia Institute of Technology, one of such
teams is in Dr. M. A. Ingram’s Smart Antenna Research Laboratory (SARL), a part
of the Georgia Center for Advanced Telecommunications Technology (GCATT).
The purpose of this report is to provide Matlab code to simulate the basic processing
involved in the generation and reception of an OFDM signal in a physical
channel and to provide a description of each of the steps involved. For this purpose,
we shall use, as an example, one of the proposed OFDM signals of the Digital
Video Broadcasting (DVB) standard for the European terrestrial digital television
(DTV) service.)
- 2009-03-05 20:15:10下载
- 积分:1
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hurstestimators
包含了采用不同方法计算hurst指数的matlab程序( it contains several different methods for hurst exponent computation,including rs wavelet and so on)
- 2009-07-04 15:11:32下载
- 积分:1
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old-video-player-subeditand-more
old videoplayers src :cinemaplayer,subedit,viplay+the scientist & engineer s guide to digital signal processing.pdf(full)
- 2014-09-18 20:16:44下载
- 积分:1
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LFM
线性调频脉冲压缩过程中所有仿真结果和代码(Chirp compression process simulation and code all)
- 2013-12-04 21:55:44下载
- 积分:1
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xz_OPF
电力系统分析-IEEE标准14节点最优潮流计算程序(OPF)(Power system IEEE standard 14-node optimal power flow calculation (OPF))
- 2012-11-26 08:39:32下载
- 积分:1
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MATLAB
一、 牛顿-拉夫逊法概要
首先对一般的牛顿-拉夫逊法作一简单说明。已知一个变量X的函数
(4-6)
解此方程式时,由适当的近似值X(0)出发,根据 (4-7)
反复进行计算,当X(n)满足适当的收敛判定条件时就是(4-6)式的根。这样的方法就是所谓的牛顿-拉夫逊法。
式(4-7)就是取第n次近似解X(n)在曲线 上的点 处的切线与X轴的交点作下一次X(n+1)值的方法。参考图4-2(a)。在这一方法中为了能收敛于真解,初值X(0)的选取及函数f(X)必须满足适当的条件,如图4-2(b)所示的那种情况就不能收敛或收敛到别的根上去。
这一方法还可以做下面的解释,设第n次迭代得到的解与真值之差,即 的误差为 时,则
(4-8)
把 在 附近对 用泰勒级数展开
(4-9)
上式略去 以下的项
(4-10)
的误差可近似由上式计算出来
图4-2
(4-11)
比较式(4-7)和(4-11),可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。
用同样的方法考虑,给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language
is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2
sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s
symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability
of the programme dramatically. The advantage is that , what we need to do is change the model expression. We
can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2
lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique
functions of Matlab in the optimization and calculation for power system.
Key words :power system symbolic calculation optimal power flow interior point method)
- 2020-07-08 16:38:56下载
- 积分:1
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DCT-change
DCT变换图像处理,给出了源码和实现过程,是一个毕业设计(DCT transform)
- 2012-04-25 22:33:59下载
- 积分:1
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A
用matlab的mesh命令画出所要求解的大量数据文件的图形(The mesh command using matlab draw large amounts of data required for solution of graphic files)
- 2013-08-02 13:08:58下载
- 积分:1
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ImageCompression
hi this code image processing
- 2011-09-24 16:23:05下载
- 积分:1
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Untitled
使用MATLAB编程 配电网前推回代法潮流计算 采用的是标准的IEEE33节点(Power flow calculation of the standard IEEE33 node)
- 2015-07-20 09:46:59下载
- 积分:1