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m_PN
说明： 伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)
- 2009-08-10 22:39:52下载
- 积分：1
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macefacepro
Contents:
A.zip: code compatible with Matlab 2007a and older
B.zip: code compatible with Matlab 2007b and newer
data.zip: test data
instructions.pdf: this file
Instructions:
Unzip the selected file (A.zip or B.zip) in Matlab current directory (C:/.../Matlab/work is the default
one).
Type the name of main function on Matlab command window.
Now a simple and intuitive GUI should appear.
You can use images/data present in data.zip: just unzip them in Matlab current directory.
- 2012-04-11 13:11:01下载
- 积分：1
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4
说明： Simulation Montecarlo Integral
- 2013-11-09 19:29:12下载
- 积分：1
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BCS
IEEE文献Bayesian Compressive Sensing及贝叶斯压缩感知源码(Bayesian Compressive Sensing Code)
- 2020-06-29 05:40:01下载
- 积分：1
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DSP_MATLAB_ChenHuaiChen
说明： 名师陈怀琛MATLAB及在电子信息课程中的应用的所有电子课件，含有书中举出的MATLAB讲解例子和课后习题例子，非常详细，非常精彩，对于学习数字信号处理和学习MATLAB帮助巨大(DSP_MATLAB_ChenHuaiChen)
- 2009-08-30 22:12:20下载
- 积分：1
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OFDM_SIM
OFDM 通信系统仿真，包括 BPSK QAM QPSK 调制程序，和解调程序，(OFDM communication system simulation, for BPSK QAM QPSK modulation, and demodulation process,)
- 2012-05-27 21:08:16下载
- 积分：1
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Rapid-Acquisition-of-Doppler-Shift-
本文提出了一种适用于低轨卫异扩频通信系统的多普勒频移快捕方法.该方法基于数字匹配滤波器及自动频率控制环路_利用数字匹配滤波器的囚码快捕特性及其输出主相关峰值对频偏的敏感性，缩短多普勒频移的
捕获时间.论文首先推导了多普勒频移的平均捕获时间表达式，然后根据数值分析结果得到了准最佳捕获判决策略，最后通过比较验证了该快捕方法相对于传统串行捕获方法在性能上的提高.
(This paper presents a low-orbit health for different spread spectrum communication system fast catching the Doppler shift method, which based on digital matched filter and automatic frequency control loop _ prisoners using digital matched filter code features rapid acquisition and the output of the main correlation peak frequency deviation of the sensitivity of the Doppler frequency shift to shorten acquisition time. paper first derive the mean Doppler shift acquisition time expression, then the numerical results obtained quasi-optimal capture decision strategies, and finally verified by comparing with the rapid acquisition method to capture the traditional method of serial improvement in performance.)
- 2011-10-22 19:35:00下载
- 积分：1
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FUZZY-CONTROL-MAMDANI
一个3-4-1型的mamdani模糊控制系统，可适用于很多情况。(A 3-4-1 type mamdani fuzzy control system, applicable to many situations.)
- 2013-10-05 10:48:48下载
- 积分：1
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time_frequency_matlab
横坐标是时间，纵坐标是频率，matlab绘制时频图的小程序(Time frequency pic)
- 2021-02-25 11:39:38下载
- 积分：1
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spfg
一种简单快速的视频分割方法，针对多媒体视频序列(A simple method of fast video segmentation, video sequences for multimedia)
- 2009-04-08 21:53:09下载
- 积分：1
