Forums

Matched Filter

Started by xoticsmile December 25, 2004

Hey Guys,
how are you all doing?
i have a project to do and im not sure if im doing it right ..
the professor gave us a file to filter by doing a matched filter ..
i loaded the file ..
then what i did for the matched filter is that i defined the impulse
response for the filter by a number of ones and zeros and then i
flipped the input from the file by using the fliplr .. and then i
convolved the flipped input with the impulse response...is this how a
matched filter should be done ? is it right..? or is there another
way that i could implement a matched filter to filter out the file..?
please help me ..
Thank You ..



Hi,
The procedure seems to be correct, but I did not
understood the line
"then what i did for the matched filter is that i
> defined the impulse
> response for the filter by a number of ones and
> zeros"
How can you define the impulse response of the filter
like that?
-SaiRamesh.
--- xoticsmile <> wrote:

>
> Hey Guys,
> how are you all doing?
> i have a project to do and im not sure if im doing
> it right ..
> the professor gave us a file to filter by doing a
> matched filter ..
> i loaded the file ..
> then what i did for the matched filter is that i
> defined the impulse
> response for the filter by a number of ones and
> zeros and then i
> flipped the input from the file by using the fliplr
> .. and then i
> convolved the flipped input with the impulse
> response...is this how a
> matched filter should be done ? is it right..? or is
> there another
> way that i could implement a matched filter to
> filter out the file..?
> please help me ..
> Thank You .. >
>

__________________________________



hi,
im not sure if i said it write or not..
but what i did is that i loaded the file
then i defined
 h=[ones(1,50) , zeros(1,50)];
for the matched filter and then i convolved the flipped signal with h ... is that write .. or is there another way to implement a matched filter ?
thank you
 

nammi sairamesh <s...@yahoo.com> wrote:
Hi,
The procedure seems to be correct, but I did not
understood the line
"then what i did for the matched filter is that i
> defined the impulse
> response for the filter by a number of ones and
> zeros"
How can you define the impulse response of the filter
like that?
-SaiRamesh.
--- xoticsmile wrote:> Hey Guys,
> how are you all doing?
> i have a project to do and im not sure if im doing
> it right ..
> the professor gave us a file to filter by doing a
> matched filter ..
> i loaded the file ..
> then what i did for the matched filter is that i
> defined the impulse
> response for the filter by a number of ones and
> zeros and then i
> flipped the input from the file by using the fliplr
> .. and then i
> convolved the flipped input with the impulse
> response...is this how a
> matched filter should be done ? is it right..? or is
> there another
> way that i could implement a matched filter to
> filter out the file..?
> please help me ..
> Thank You ..__________________________________

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