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kuopin
直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)
- 2011-01-09 16:54:26下载
- 积分：1
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3
说明： 关于MATLAB的图形编程的文章，介绍的很细(MATLAB)
- 2008-08-31 10:53:46下载
- 积分：1
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m-language
m语言编程，详细介绍m语言的基本知识以及高级应用(m programming language, details the basics of the language m and advanced applications)
- 2011-10-17 14:57:46下载
- 积分：1
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DVB_TCOFDM
DVB_TCOFDM接收系统中关键技术研究与设计(DVB_TCOFDM receiver algorithm)
- 2011-01-07 18:05:26下载
- 积分：1
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daying1
说明： 基于matlab的电力系统潮流计算程序，希望对大家有用(Matlab-based Power Flow calculation program, we hope to be useful)
- 2011-03-08 13:42:34下载
- 积分：1
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mat.a-TSP-
已知n个城市之间的相互距离，现有一个推销员必须遍访这n个城市，并且每个城市只能访问一次，最后又必须返回出发城市。如何安排他对这些城市的访问次序，可使其旅行路线的总长度最短？
(Known n city between the distance, the existing of a salesman to be visited this n city, and each city can only be visited once, finally to return to the starting city. How to arrange for him to visit the city order, which can make the total length of the shortest travel route)
- 2012-05-05 14:36:03下载
- 积分：1
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bonchol
this is for lmi lmi problems
- 2010-01-12 14:51:05下载
- 积分：1
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grapheAlgoII
Code matlab for wireless sensor networks
- 2012-08-14 23:04:14下载
- 积分：1
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rs
说明： R/S分析法程序,用于分析时间序列波形特征(R/S analysis program for analyzing the time series waveform feature)
- 2013-04-26 14:20:40下载
- 积分：1
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ExtractBackground
he files in this package comprise the Matlab implementation of a
foreground segmentation algorithm based upon graph cuts, described in:
Better Foreground Segmentation Through Graph Cuts, N. Howe &
A. Deschamps. Tech report, http://arxiv.org/abs/cs.CV/0401017.
The file extractForeground.m contains a sample function that will
perform a complete foreground segmentation for static camera video.
It uses a number of parameters, which are described in the
documentation. An attempt was made to choose sensible default values,
but they may need to be adjusted for some videos.
More generally, the implementation in extractForeground.m is only a
suggestion of how the graph-based segmentation might be used. The
same approach can be applied with other (perhaps time-adaptive)
background models. The key step is at line 113 of the code, once the
deviation array has been created. The graph-cut segmentation can be
applied similarly to a deviation matrix computed in any other way.
- 2013-11-19 23:41:02下载
- 积分：1
