anyone help "comb filter"

[shehe10593]

first,i have to say sorry. my english is very poor.

there is my problem : i want to use comb design toolkit for my project.

i attach the vi file. how should i change my input like normal filter use "Waveform" input and not like ex:f0,Df,Ab.

anyone help? please!!

我英文敘述的很差,我想表達的是,

我要利用在LabVIEW內的comb design toolkit來製作comb filter,

我在下面有附檔,上方是comb filter的元件,下方是正常的filter,

而在輸入端方面有問題,我想要像是一般的filter是利用波形來輸入並且濾波,

而不是輸入參數f0,Df,Ab,Sample Frequency之類的來當輸入,

請問有人可以幫忙嗎? 謝謝

[rpursley8]

The one VI you referring to defines the comb filter you want to use.  The inputs are as follows

Sampling Frequency = rate at which the data you are going to filter has been sampled at

f0 = The spacing of the notches in the spectrum

Df = the spectral width of the notches

Ab = the average depth of the notches

For example, you could make a comb filter to filter out 60 Hz and all harmonics of 60 Hz.  The parameters could be as follows:

Sampling Freq = 60000 Hz

f0 = 60 Hz

Df = 1 Hz

Ab = 20 dB

I simulated a 10 Hz Sine Wave with 60 Hz Square Wave noise on it.  Below are images of the block diagram and the front panel.