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OFDM
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)
- 2010-05-21 14:56:54下载
- 积分：1
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xwy
电力系统课程设计，PQ潮流算法源程序，IEEE节点适用。(Power systems curriculum design, PQ flow algorithm source code.)
- 2014-09-20 15:42:28下载
- 积分：1
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armaorder
本程序可以完成功率谱估计中，ARMA模型的阶数估计(This procedure can be completed in the power spectrum estimation, ARMA model order estimate)
- 2008-05-21 10:58:42下载
- 积分：1
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HW2
In mathematics, the discrete-time Fourier transform (DTFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the "DTFT", of the original function (which is often a function in the time-domain).(This file includes matlab source code about DTFT and also includes explanation report)
- 2010-01-28 20:34:53下载
- 积分：1
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Huffman
用赫夫曼树进行编码和解码的相关操作，支持字符串的加密和解密(the procedure was wrote for huffman code ,which can be uesd to encode sting)
- 2014-11-25 15:25:38下载
- 积分：1
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第八章
传感器阵列波束优化设计与应用书籍第8章matlab程序(Chapter 8 matlab program of book Sensor array beam optimization design and application)
- 2020-12-05 12:09:23下载
- 积分：1
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TRACK
MATLAB programing for engineering
- 2010-07-21 00:25:41下载
- 积分：1
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200707171150141339
这个Matlab程序实现一个基于活动轮廓的边缘检测，而不进行重新初始化。(The Matlab program of active contour based on edge detection, rather than re-initialization.)
- 2009-05-13 09:09:53下载
- 积分：1
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Iris1locate2prude3snake
说明： 基于主动轮廓模型的虹膜图像定位算法研究及其matlab实现(Iris recognization, Matlab, based on snake,actice countours)
- 2010-04-27 10:53:58下载
- 积分：1
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n-bus-Power-Flow-Solver-2
DESCRIPTION: This Matlab algorithm performs many tasks associated with
power system analysis. First, it has the ability to perform both fully
coupled and dc power flow analysis. Second, it has the ability to create
measurements (with user-defined error) to be used as input for state
estimation. Third, it has the ability to perform state estimation -
allowing the user to examine how the placement of measurement devices as
well as magnitude of distibution of measurement error affect the
discrepency between power flow and state estimation results. In essence,
it provides the user with a complete package for the study of both power
flow and state estimation in n-bus power systems.
- 2013-03-18 22:12:03下载
- 积分：1
