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carrier-modulation
多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流,从而使子数据流具有低得多的传输比特速率,利用这些数据分别去调制若干个载波。所以,在多载波调制信道中,数据传输速率相对较低,码元周期加长,只要时延扩展与码元周期相比小于一定的比值,就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现,如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中,OFDM可以抵抗多径干扰,是当前研究的一个热点。(Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. )
- 2014-11-26 20:06:23下载
- 积分:1
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MATLAB-wavelet-analysis
MATLAB 小波分析高级技术,西电版,小波的经典教材(MATLAB wavelet analysis of advanced technology
)
- 2015-01-15 10:29:51下载
- 积分:1
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Bernstein_chebyshev_Lagrange
Bernstein_chebyshev_Lagrange等基函数编写和实现(Bernstein_chebyshev_Lagrange basis functions, such as the preparation and implementation)
- 2013-12-05 10:29:29下载
- 积分:1
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MATLABpid
先进 PID 控制及其 MATLAB 仿真(教材+相关程序) 刘金琨 著 电 子 工 业 出 版 社
内 容 简 介 本书从 MATLAB 仿真角度系统地介绍了 PID 控制的基本理论、基本方法和应用技术,是作者多年来从事控制系统教学和科研工作的结晶,同时融入了国内外同行近年来所取得的新成果。 全书共分十章,包括连续系统和离散系统的 PID 控制,常用数字 PID 控制,专家 PID和模糊 PID 控制,神经 PID 控制,遗传算法 PID 控制,多变量解耦 PID 控制,几种先进的PID 控制,灰色 PID 控制,伺服系统 PID 控制,PID 实时控制,每种方法都通过 MATLAB 仿真程序进行了说明。本书各部分内容既相互联系又相互独立,读者可根据自己需要选择学习。本书适用于从事生产过程自动化、计算机应用、机械电子和电气自动化领域工作的工程技术人员阅读,也可作为大专院校工业自动化、自动控制、机械电子、自动化仪表、计算机应用等专业的教学参考书。(advanced PID control and MATLAB (materials related procedures) with the electronics industry, Hangzhou Press Description of the book from the perspective of MATLAB simulation system introduced PID control of the basic theory, Basic methods and techniques, is the author of control systems for years to teaching and research work at the crystallization Meanwhile at home and abroad into the peer in recent years has made new achievements. The book is divided into 10 chapters, including discrete and continuous system of PID control system, commonly used digital PID control, Expert PID and fuzzy PID control, neural PID control, genetic algorithm PID control, Multivariable decoupling PID control, several advanced PID control, gray PID control, PID control servo system, PID control in real time, ea)
- 2021-04-28 12:38:44下载
- 积分:1
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1052
MATLAB源码,preprocessing.m: preprocess the picture including:Wiener filter; meddle value filter, change a gray picture to a binary one and then get the skeleton. centralizing.m: input the source picture output the core point of the fingerprint. samfun.m: generate the sample pattern automatically, which is used to sample the fingerprint. gabor2d_sub: get gabor filter. varpic.m: calculate variance picture(MATLAB source, preprocessing.m : preprocess the picture including : Wiener filter; meddle value filter, change a gray picture to a binary one and then get the skeleton. centralizing.m : input the source picture output the core point o f the fingerprint. samfun.m : generate the sample pattern automatically, which is used to sample the fingerprint. gabor2 d_sub : get gabor filter. varpic.m : calculate variance picture)
- 2006-12-09 19:45:06下载
- 积分:1
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LFM_mixing
自己写的一个关于非零频的LFM信号的产生,及下混频到零频的代码,有详细的注释(A non-zero frequency LFM signal generation, and under the mixer to the zero-frequency code, with detailed comments)
- 2012-07-05 14:48:12下载
- 积分:1
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MATLAB求解无穷区间定积分问题
MATLAB求解无穷区间定积分问题 MATLAB solving infinite interval definite integral problem(MATLAB solving infinite interval definite integral problem)
- 2020-06-28 23:00:01下载
- 积分:1
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bpsk
BPSK误码率的Matlab仿真程序源代码(BPSK BER simulation program Matlab source code)
- 2010-07-05 00:07:45下载
- 积分:1
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LPS
Laser tube over heat protect
- 2014-02-09 04:23:00下载
- 积分:1
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ptl
信噪比,相对强度噪声对PAM4调制误码率的影响(Influence of signal to noise ratio on BER of PAM4 modulation)
- 2017-09-01 11:03:53下载
- 积分:1