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matlabASKPSKFSK
数字信号的传输方式分为基带传输和带通传输,在实际应用中,大多数信道具有带通特性而不能直接传输基带信号。为了使数字信号在带通信道中传输,必须使用数字基带信号对载波进行调制,以使信号与信道的特性相匹配。这种用数字基带信号控制载波,把数字基带信号变换为数字带通信号的过程称为数字调制。通常使用键控法来实现数字调制,比如对载波的振幅、频率和相位进行键控。(Transmission of digital signals into base band transmission and band-pass transmission, in practice, most of the channel with band-pass characteristics can not directly transmit base-band signal. In order to make the digital signal is transmitted with a communication channel, you must use the digital baseband signal to modulate the carrier to make the signal to match the characteristics of the channel. The digital baseband signal control with a carrier, the digital baseband signal conversion to digital bandpass signal is called digital modulation. Keying method is commonly used digital modulation, such as on the carrier' s amplitude, frequency and phase shift keying.)
- 2010-11-14 16:08:52下载
- 积分:1
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mianyiyichuan
该算法既保留了遗传算法的搜索特性,又利用了免疫算法的多机制求解多目标函数最优解的自适应特性,在很大程度上避免了“早熟”,收敛于局部极值。
生物体的免疫系统是一个高度进化、复杂的系统,它能自适应地识别和排除入侵肌体的抗原性异物,保护机体免受损害及维持内坏境稳定,并具有学习、记忆和自适应调节的能力。当抗原入侵时,免疫系统通过自体耐受对‘自己’和‘非己’进行识别,并产生最恰当的抗体排除抗原,通过抗体与抗体之间、抗原与抗体之间的相互刺激和抑制关系,降低抗原对免疫细胞的刺激,抑制抗体的过度分化、增殖,保证免疫平衡并维持抗体的多样性。同时在免疫过程中将产生抗体的部分细胞作为记忆细胞保存下来,对于今后侵入的同类抗原,相应的记忆细胞受到激发而产生大量的抗体。为提高生物体的免疫机能,医学上往往根据抗原性异物提取疫苗给生物体接种,接种过的生物体由于免疫细胞预先获得了抗原染色体的特征信息,因而在类似抗原入侵时,能迅速产生亲和度很高的抗体,有效抵御入侵。(The search algorithm only retains the characteristics of genetic algorithms, and use multiple mechanisms of immune algorithm for solving multi-objective characteristics of adaptive optimal solutions, in large part to avoid the " premature" , converge to local minima. Organism' s immune system is a highly evolved, complex system which adaptively identify and remove foreign matter intrusion antigenic body, protecting the body injury and maintain internal stability bad environment, and has learning, memory and adaptive Ability. When the antigen invasion of immune system tolerance to autologous ' own' and ' non-self' to identify and produce the most appropriate antigen antibody excluded by between antibody and antibody, antigen and antibody mutual stimulation and inhibition of the relationship between reduce the antigen to stimulate immune cells, antibodies inhibit excessive differentiation, proliferation, immune balance and ensure the maintenance of antibody dive)
- 2016-11-11 17:42:42下载
- 积分:1
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huaffman
MATLAB实现的平移huaffman编码,(MATLAB implementation of the translation huaffman code)
- 2010-07-01 21:10:18下载
- 积分:1
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facedctlocprot
说明: mlp
- 2009-03-14 16:48:57下载
- 积分:1
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Adamswai
Adams外插法程序,用于画16阶以内的稳定域。(Adams extrapolation procedure, used to draw the16 order within the stable region.)
- 2012-04-16 17:18:10下载
- 积分:1
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Population-projections-matlab
可以用来进行人口预测的matlab代码,直接模仿就可以用了(Can be used for population projections matlab code, you can use a direct imitation)
- 2013-10-01 22:20:21下载
- 积分:1
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tips
A basic tips of matlab
- 2011-11-24 17:20:36下载
- 积分:1
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equlization-matlab-code
equlization Matlab Code
- 2011-01-24 05:48:02下载
- 积分:1
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sept5
LMS算法源代码,输入为正弦加噪声LMS算法源代码,输入为正弦加噪声(LMS algorithm source code, the input is sinusoidal plus noise LMS algorithm source code, the input is sinusoidal plus noise)
- 2010-06-03 14:51:46下载
- 积分:1
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RD
说明: 合成孔径雷达RD算法源代码,对于初学者非常有用!(RD Algorithm for synthetic aperture radar imaging)
- 2011-08-22 21:08:20下载
- 积分:1