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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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Digital-Image-Process
數位影像處理作業
noise filter
(Digital Image Process
Noise filter)
- 2013-12-25 00:31:53下载
- 积分：1
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MATLAB
利用超星阅览器阅读的书籍，介绍关于Matlab的使用方法(Use Chaoxing reader to read books, information on the use of Matlab)
- 2008-01-26 19:25:12下载
- 积分：1
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wsn_matlab
说明： 无线传感器网络路由算法，采用最短路径，先搜索节点的一跳范围的距离，再搜索两跳的距离，仿真效果良好。(Wireless sensor network routing algorithm, using the shortest path first jump of the scope of the search node distance, and then search for the two jump distance, simulation results were very good.)
- 2008-12-08 20:22:00下载
- 积分：1
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matlabcodeforscmtechnique
scm modulation technique
- 2012-04-15 20:29:27下载
- 积分：1
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ferman
Code used by Ferman (2011) in the matlab.
- 2013-03-27 03:15:52下载
- 积分：1
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Suspend--terminate--continue
暂停，终止，继续，非常高效，实用，适合比较大程序(Suspend, terminate, continue, very efficient, practical, suitable for relatively large program)
- 2012-11-22 17:02:36下载
- 积分：1
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Matrix_ComplexNumber_Ex3
Spatially multiplexing several data streams onto the MIMO channel,the rank of the matrix H and with full rank.
- 2014-02-25 15:03:26下载
- 积分：1
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bp投影
说明： sar雷达成像的后向投影算法的matlab代码(Matlab code of backward projection algorithm for SAR radar imaging)
- 2020-11-02 11:11:40下载
- 积分：1
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arxModel_shm
运用matlab编程实现ARX模型中的参数确定(ARX model)
- 2012-11-20 11:30:02下载
- 积分：1
