sharpL

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diversity
matlab 下的协作分集和各种方案性能比较(cooperative diversity)

2010-06-11 08:03:14下载

积分：1
FIR_bandpass
用窗函数法设计FIR带通滤波器。指标：低端通带截止频率wlp=0.35π 低端阻带截止频率wls=0.2π。高端通带截止频率whp=0.65π 高端阻带截止频率whs=0.8π。 (Design of FIR with window function bandpass filter target: low-pass with cutoff frequency wlp = 0.35π low stopband cutoff frequency wls = 0.2π passband cutoff frequency of high-end whp = 0.65π high stopband cut-off frequency whs = 0.8π)

2011-06-24 09:30:39下载

积分：1
Image-transformation
图像增强，MATLAB数字信号与图像处理范例实战速查宝典第九章内容(Image transformation)

2014-11-27 10:56:08下载

积分：1
fangzhen
实验一双极性矩形随机信号的归一化功率谱密度一 1.1 功率谱密度简介平稳过程的任何一个非零样本函数的持续时间为无限长，显然都不满足绝对可积和总能量有限的条件。因此，它的傅里叶变换不存在即没有频谱函数。所以我们用功率谱密度来表述其频谱特性。随机过程的任一实现是一个确定的功率型信号。而对于任意的确定功率信号f(t)，它的功率谱密度为：式中，是f(t)的截短函数对应的频谱函数。f(t)是平稳随机过程的一个实现。而随机过程某一个实现的功率谱密度不能作为过程的功率谱密度。过程的功率谱密度应该看作是任一实现的功率谱密度的统计平均，即虽然该式给出了平稳随机过程的功率谱密度，但我们通常都不利用这个式子来计算功率谱。我们知道，确知的非周期功率信号的自相关函数与功率谱密度是一对傅里叶变换。对于平稳随机过程，也有类似的关系，即和对于平稳随机过程我们通常先求出其自相关函数再利用上式求出其功率谱密度。 1.2 实验要求  1.了解平稳随机信号功率谱的概念及计算方法  2.仿真不同占空比，等概、非等概双极性矩形随机信号的归一化功率谱密度  3.分析不同信号所包含的频谱分量，有无直流分量和定时分量信息 (A pair of rectangular random experiment polarity signal sample return a nonzero function of any duration power spectral density of a 1.1 power spectral density of a stationary process Introduction of infinite length, apparently not satisfied absolutely integrable and the total energy of the limited conditions. Therefore, it is the Fourier transform of the spectrum that does not function does not exist. Therefore, we use the power spectral density to express their spectral characteristics. Any random process is a realization of a certain type signal power. For arbitrarily determined power signal f (t), its power spectral density is: wherein, is f (t) is a function corresponding to the truncated spectrum function. f (t) is a stationary random process of realization. The random process to achieve a certain power spectral density can not serve as the power spectral density of the process. Power spectral density process should be seen as a statistical average power spectral density of any r)

2014-11-30 20:39:29下载

积分：1
yzfx
因子分析是指研究从变量群中提取共性因子的统计技术。自编matlab程序。(factor analysis Matlab code)

2013-05-06 01:05:10下载

积分：1
qam
实现QAM调制解调，分为16QAM、64QAM，包括瑞利信道的仿真程序，可以供初学参考。(Implementation of QAM modulation and demodulation, divided into 16QAM, 64QAM, including Rayleigh channel simulation program, can be reference for beginners.)

2014-01-12 11:04:25下载

积分：1
2
说明：第二章 MATLAB 图形绘制基础 2.1 二维绘图 2.1.1 基本绘图函数 2.1.2 图形窗口的修饰 2.2 三维绘图 2.2.1 plot3 函数 2.2.2 三维网格图和曲面图(MATLAB chapter 2.1 Rendering the basis of two-dimensional mapping function 2.1.2 graphics 2.1.1 basic graphics window 2.2 modified three-dimensional mapping function 2.2.1 plot3 Figure 2.2.2 Three-dimensional grid and surface map)

2007-08-07 18:08:28下载

积分：1
PSOmatlabC++
PSO算法——由matlab和C++源代码组成(PSO algorithm-- from Matlab and C source code components)

2007-04-21 19:08:18下载

积分：1
Tues-A17_01-Beatty-Gridding
In this session, I will focus on the gridding method for fast image reconstruction from non- Cartesian data [1-5]. While gridding is not the only game in town, it is the reconstruction of choice when reconstruction time is an issue. Other reconstruction techniques include rBURS [6] and non-Cartesian iterative methods [7,8]. Non-Cartesian iterative methods generally use gridding and inverse gridding as their core operation, so even when gridding is not the right solution for an application, an understanding of gridding can be useful. I will cover the main steps of the gridding algorithm and then discuss some implementation tips that can signicantly reduce the computation time. Finally, I will present some illustrations and viewpoints that I have found to aid in an intuitive understanding of the gridding method, which can be helpful when designing the density compensation function and judging the appropriateness of gridding as a solution for a particular application.

2012-05-27 18:19:18下载

积分：1
PCE_Example
用于混沌多项式扩展的代码，例子较多，有些比较复杂，深入浅出(Code for the extension of chaotic polynomials)

2021-02-21 17:19:42下载

积分：1

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