Power spectrum estimator -filter bank method

1 次查看（过去 30 天）

Mustafa Al-Nasser 2021-2-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/738422-power-spectrum-estimator-filter-bank-method

评论： Mustafa Al-Nasser 2021-2-11

Dear All;

I am trying to estimate the power spectrum of the attached signal but i am not getting the meaningfull spectrum as shown in the attached figue

any idea ? it show the power spectrum is unifrom which is not true

2 个评论
显示无隐藏无

jibrahim 2021-2-9

Hi Mustafa,

You signal might be too short, and the spectrum estimator might still be in a transient phase. It would help if you can give more complete reproduction steps, and perhaps attach your signal in a MAT file.

Mustafa Al-Nasser 2021-2-11

Thank you for your answer

but the signal is not short , actually when i compute power spectrum using filter bank method all power values are zeros but when i used wlech method , i got values !

in fact the power value that i got is very small in watt which looks for me that filter bank attenuates all values , so which parameters should I change to avoid that

请先登录，再进行评论。

请先登录，再回答此问题。