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daimahekuangtu
，用MATLAB实现快跳频通信系统的仿真。主要应用了SIMULINK和COMMUNICATION BLOCKETS两个模块。整个设计包括了信源产生部分、发送部分、跳频调制部分、信道部分、接收部分和结果分析部分共六个模块，核心技术是伪随机序列的产生和频率合成器的设计，而关键技术是收发两端的伪随机码元的同步。伪随机码的产生用S－函数编程来开发自己的SIMULINK模块。同步的实现是收发两端采用相同的扩频脉冲触发。而且在设计中每个模块都采用了模块封装技术，从而简化了框图结构(Using MATLAB to achieve fast frequency-hopping communication system simulation. The main use of SIMULINK and COMMUNICATION BLOCKETS two modules. The whole design, including part of the generated source, sending part of some frequency-hopping modulation, channel of the receiving part and the results of analysis of part of a total of six modules, the core technology is the emergence of pseudo-random sequence and frequency synthesizer design, and the key technology is the transceivers at both ends of the pseudo-random synchronization symbol. Pseudo-random code generated by S-function programming to develop their own modules SIMULINK. Synchronization is used to send and receive ends of the same spread-spectrum pulse trigger. But also in the design of each module using the module packaging technology, which simplifies the structure of the diagram)
- 2021-03-22 14:09:16下载
- 积分：1
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zhiwenshibie
指纹识别的matlab源码下载，非常实用的，希望大家喜欢(zhi wen shi bie yuan cheng xu)
- 2010-11-14 21:08:12下载
- 积分：1
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logist
matlab下logistic分叉图
(matlab下logistic分叉图)
- 2010-12-02 19:35:09下载
- 积分：1
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Matlab7.0-jiaocheng
matlab7.0官方教程，而且是高清的。(matlab7.0 official tutorials, and is HD.)
- 2011-04-27 17:17:05下载
- 积分：1
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childinline
小孩排队问题，从任选一个小孩开始，出队，任隔几个小孩数数，数到几可以出队(Children queuing problem, choose one child from the beginning, the team, he was counting every few kids, a few to a few can be a team)
- 2010-05-08 23:47:40下载
- 积分：1
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mpnlms
这是一个应用与回声消除系统的lms算法的改进和代码实现(This is an application with the echo cancellation system lms algorithm improvement and code)
- 2011-07-10 10:58:55下载
- 积分：1
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DFT
DFT implementation in MATLAB and ccs
- 2009-05-23 15:04:48下载
- 积分：1
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bifcircular
Bifurcation Diagram of Circular map
- 2013-01-09 14:36:20下载
- 积分：1
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pingyi
在小波去噪中，采用循环平移不变量去噪法，可以抑制Pseudo-Gibbs现象。(Wavelet de-noising, using cyclic shift invariant denoising method can suppress Pseudo-Gibbs phenomenon.)
- 2014-04-21 15:11:25下载
- 积分：1
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lcdyt
鉴于LCD方法存在的问题，本文提出了一种基于互相关匹配端点延拓局部特征尺度分解（Cross-correlation matching endpoint Extension Local Characteristic scale Decomposition，简称CELCD），由于LCD分解原理是依据信号的局部极值点信息不断进行筛分信号，在信号分解时需要先确定信号的局部极值点，而信号的两个端点可能不是极值点，因此在信号两端点就会出现虚假成分，且该现象随着分解的进行向数据内部扩散，产生端点效应，导致分解结果失真。而CELCD方法的本质在于探索待分解信号前后端的数据规律，延长波形，使得端点效应不出现在原始信号分解的片段上，从而消除端点效应。(Given the LCD method has a problem, this paper presents a cross-correlation based on local feature matching endpoint extension scale decomposition (Cross-correlation matching endpoint Extension Local Characteristic scale Decomposition, referred CELCD), since the LCD decomposition principle is based on the signal of local optima ongoing screening point information signal, when the signal decomposition needed to determine local extreme point of the signal, and the two endpoints signals may not be extreme point, so the two end points of the signal will be fraudulent, and that the phenomenon with decomposition of the data in the internal diffusion, resulting end effect, leading to decomposition distortion. The essence of the method is to explore CELCD data signal to be decomposed before and after the end of the law, to extend the waveform, so the end effect does not appear on the original signal decomposition fragments now to eliminate the end effect.)
- 2015-10-26 20:22:03下载
- 积分：1
