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eccv10guidedfilter
eccv2010 guide filter
- 2011-02-22 20:35:49下载
- 积分：1
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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
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PremioNumerica
MATLAB code for EDO and RungeKutta methods
- 2013-04-15 04:59:55下载
- 积分：1
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work
MATLAB编程源码，结果为画出多个正六边形。(MATLAB programming source, the results painted a number of regular hexagon.)
- 2007-12-06 10:46:28下载
- 积分：1
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56e946bf2520
This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the power level of the PU signa...This code performs wide band Cooperative Spectrum Sensing under various noise levels. A large number of primary users as well as secondary users are considered.The detection is power spectral density based . This project gives the lower bound for the power level of the PU signa...
- 2015-02-17 00:54:58下载
- 积分：1
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HHTtransformanalysisofpressurepulsewavesignal
本文采用的是先对脉搏波进行经验模态分解，产生一组内在的模函数，每一种模态对应一种物理状态，之后使用ＨＴ得出瞬时的频率和振幅，进而得到边际谱(In this paper, is the first of the pulse wave empirical mode decomposition, resulting in a set of intrinsic mode function, each mode corresponds to a physical state, followed by the use of HT derived instantaneous frequency and amplitude, and thus to be marginal spectrum)
- 2009-09-04 10:00:42下载
- 积分：1
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一个车间作业调度源代码代码
详细画出了时域和频域的相关图，模拟数据分析处理的过程，各种资源分配算法实现，到达过程是的泊松过程，计算晶粒的生长，入门级别程序,基于小波变换的数字水印算法matlab代码。
- 2022-09-29 19:30:02下载
- 积分：1
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pengtaiyu2
四阶龙格库塔法,大学MALAB实践课程 需要的请下载(Fourth-order Runge-Kutta method, the University needs MALAB practical courses please download)
- 2008-05-20 23:27:51下载
- 积分：1
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Laplace
说明： 拉普拉斯金字塔算法跟代码！分割图像！请下载！(laplace)
- 2010-04-20 18:49:24下载
- 积分：1
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PMSM_SMO
实现永磁同步电机的无位置控制，采用滑模算法计算转子位置角度，精度高，相应速度快。(Realize position control of permanent magnet synchronous motor, rotor position Angle is obtained by using the sliding mode algorithm, high accuracy, the corresponding speed.)
- 2021-03-17 21:39:20下载
- 积分：1
