Location:
Search - signal envelop
Search list
Description: 一个很好的求信号包络的MATLAB工具包.-A good demand signal envelope of MATLAB tool kit
Platform: |
Size: 7168 |
Author: 张运涛 |
Hits:
Description: 信号包络分析，对信号进行包络分析，求出上包络，和下包络信号-Analysis of signal envelope
Platform: |
Size: 1024 |
Author: caizigang |
Hits:
Description:
reduction to papr in ofdm with Peak Windowing:
The basic idea of peak windowing is to multiply the envelope of OFDM
signal with a weighting function . Therefore,
~xE (t)= xE (t) f (t)
where
XE(t) =[x(t)]
The weighting function given by:
f (t)= 1-Σ α .w(t- t )
t-t
w(t) : is the window function.
t : denotes the position of a local maximum of the envelop xE(t) .
α : attenuation constant .
When the amplitude of envelop amplitude of the OFDM signal exceeds a threshold, a window function is applied to the envelop of the OFDM signal to eliminate the peak amplitude. windowing results in a smooth signal.
Hanning window function will be used for w(t)
As a matter of fact , other windows such as cosine, hamming and Kaiser may be employed.
-
reduction to papr in ofdm with Peak Windowing:
The basic idea of peak windowing is to multiply the envelope of OFDM
signal with a weighting function . Therefore,
~xE (t)= xE (t) f (t)
where
XE(t) =[x(t)]
The weighting function given by:
f (t)= 1-Σ α .w(t- t )
t-t
w(t) : is the window function.
t : denotes the position of a local maximum of the envelop xE(t) .
α : attenuation constant .
When the amplitude of envelop amplitude of the OFDM signal exceeds a threshold, a window function is applied to the envelop of the OFDM signal to eliminate the peak amplitude. windowing results in a smooth signal.
Hanning window function will be used for w(t)
As a matter of fact , other windows such as cosine, hamming and Kaiser may be employed.
Platform: |
Size: 2048 |
Author: asmaa |
Hits:
Description: 一种求信号包络线的程序，利用matlab中的hilbert算法-Method for the determination signal envelope procedure in hilbert algorithm using matlab
Platform: |
Size: 1024 |
Author: sun2990 |
Hits:
Description: 包络分析大多在原始振动加速度信号基础上进行， 受噪声干扰等因素的影响较大 通过对原始振动信号自相关函数作包络分析， 可以有效地抑制噪声， 突出反映故障调制特征-s． Most of the envelope analyses are based on original vibration accelera-
tion signal，which is seriously influenced by noise interference． The noise is effectively suppressed by envelop analysis
of auto correlation function of original vibration signal，and the modulation characteristics of fault are highlighted．
Platform: |
Size: 1004544 |
Author: 侯蒙蒙 |
Hits: