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classical_calculus_tutorial_matlab
matlab微积分经典教程classical calculus tutorial matlab(matlab calculus classic classical calculus tutorial matlab tutorial)
- 2010-08-02 09:08:03下载
- 积分:1
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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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the-method-to-remove-noises
数字图像处理 取出高斯噪声的有效方法.通过matlab处理(Digital image processing effective way to remove the Gaussian noise)
- 2012-04-22 17:40:37下载
- 积分:1
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QAM
matlab model file to simulate QAM modulation and demod.
- 2011-11-10 17:08:04下载
- 积分:1
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高阶累积量
高阶累积量,用于信号的调制识别,性能较好(high order cumulant,used to AMC.)
- 2017-12-28 11:28:16下载
- 积分:1
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1
说明: 数值计算方法—— 用matlab仿真实现牛顿迭代计算——源程序(iterative calculation method)
- 2010-02-26 14:15:36下载
- 积分:1
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lab2-conv
This does convolution of two sequences in stepwise manner according to normal understanding.
sigfold.m:-fips signal 1..and changes n accordingly.
sigshift.m:-shifts flipped signal from left to right to cover all overlapping
sigmulti.m:-multiplies two signals at each instant of overlapping
convolution.m:-it finally calculates the sum of the product
- 2011-07-27 22:58:21下载
- 积分:1
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xiaoboquzao
小波变换实现信号的去除噪声,仿真效果良好(Wavelet transform to remove the noise signal, the simulation results good)
- 2014-11-04 09:00:47下载
- 积分:1
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294976fcm
this is also fuzzy c means clustering for segmentation
- 2013-09-19 17:48:38下载
- 积分:1
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en-ef-mu
code for cognitive radios
- 2013-11-21 03:52:29下载
- 积分:1