读入一段数据,采用lempel-Ziv算法进行信源编码
标签: 数据
上传时间: 2014-01-01
上传用户:变形金刚
This scheme is initiated by Ziv and Lempel [1]. A slightly modified version is described by Storer and Szymanski [2]. An implementation using a binary tree is proposed by Bell [3]. The algorithm is quite simple: Keep a ring buffer, which initially contains "space" characters only. Read several letters from the file to the buffer. Then search the buffer for the longest string that matches the letters just read, and send its length and position in the buffer.
标签: initiated described modified slightly
上传时间: 2014-01-09
上传用户:sk5201314
Welch法:Welch法对Bartlett法进行了两方面的修正:一是选择适当的窗函数w(n),并在周期图计算前直接加进去,加窗的优点是无论什么样的窗函数均可使谱估计非负。二是在分段时,可使各段之间有重叠,这样会使方差减小。
上传时间: 2016-03-03
上传用户:xcy122677
关于功率谱估计的,周期图法,自相关法,bartlett法和welch法,还有一个复倒谱估计的代码
上传时间: 2014-01-19
上传用户:CSUSheep
用Fourier变换求取信号的功率谱---周期图法 用Fourier变换求取信号的功率谱---分段周期图法 用Fourier变换求取信号的功率谱---welch方法 功率谱估计----多窗口法(multitaper method ,MTM法) 功率谱估计----最大熵法(maxmum entmpy method,MEM法) 功率谱估计----多信号分类法(multiple signal classification,music法)Fourier transform to strike a signal to the power spectrum - the cycle of plans Fourier transform to strike a signal to the power spectrum - Sub-cycle Method Fourier transform to strike a signal to the power spectrum --- welch method Power spectrum estimated more than window ---- Law (multitaper method, MTM) ---- Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM) ---- More than the estimated power spectrum signal classification (multiple signal classification, music)
上传时间: 2016-07-16
上传用户:wqxstar
有直接法,间接法,Bartlett法,Welch法
上传时间: 2016-09-30
上传用户:225588
功率谱 welch 方法 there is a simple demo for non parameteric spectral estimation methods
标签: parameteric estimation spectral methods
上传时间: 2014-01-12
上传用户:hakim
MATLAB环境下的直接法 间接法和welch法源程序和谱密度函数的曲线比较
上传时间: 2017-01-12
上传用户:fanboynet
最大熵法与Welch法估计的功率谱的比较。 多信号分类法估计的功率谱。
上传时间: 2013-12-25
上传用户:一诺88
Welch法得到的功率谱估计。 设计滤波器对白噪声滤波后的功率谱。
上传时间: 2014-11-28
上传用户:epson850