From: Shenzhi on
Hi,friends!

I have a difficulty in naming a portion of the FIR filter.
For a simple example: y(n)=h(2)*x(n-2)+h(1)*x(n-1)+h(0)*x(n)
How can I name a portion of "h(2)*x(n-2)" or "h(1)*x(n-1)"?
Could it be named as "partial product" or some other names?
Who can give me an appropriate name to it?

Shenzhi


From: Tim Wescott on
Shenzhi wrote:
> Hi,friends!
>
> I have a difficulty in naming a portion of the FIR filter.
> For a simple example: y(n)=h(2)*x(n-2)+h(1)*x(n-1)+h(0)*x(n)
> How can I name a portion of "h(2)*x(n-2)" or "h(1)*x(n-1)"?
> Could it be named as "partial product" or some other names?
> Who can give me an appropriate name to it?

How about "terms" -- "two clock delay term", or "x(n-2) term".

Or "coefficient" -- if you were to put the filter into the z domain
you'd have a polynomial in z^-1, i.e. Y = h(2) * X * z^-2 + h(1) * X *
z^-1 + h(0) * X. Then h(0) would become the zero-order coefficient,
h(1) would be come the first-order coefficient, etc.

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com
From: Shenzhi on
Thanks, Tim!

"Tim Wescott" <tim(a)seemywebsite.now>
:B_udnR-cpspZPCnWnZ2dnUVZ_t6dnZ2d(a)web-ster.com...
> Shenzhi wrote:
>> Hi,friends!
>>
>> I have a difficulty in naming a portion of the FIR filter.
>> For a simple example: y(n)=h(2)*x(n-2)+h(1)*x(n-1)+h(0)*x(n)
>> How can I name a portion of "h(2)*x(n-2)" or "h(1)*x(n-1)"?
>> Could it be named as "partial product" or some other names?
>> Who can give me an appropriate name to it?
>
> How about "terms" -- "two clock delay term", or "x(n-2) term".
>
> Or "coefficient" -- if you were to put the filter into the z domain you'd
> have a polynomial in z^-1, i.e. Y = h(2) * X * z^-2 + h(1) * X * z^-1 +
> h(0) * X. Then h(0) would become the zero-order coefficient, h(1) would
> be come the first-order coefficient, etc.
>
> --
> Tim Wescott
> Control system and signal processing consulting
> www.wescottdesign.com


From: John Monro on
Shenzhi wrote:
> Thanks, Tim!
>
> "Tim Wescott" <tim(a)seemywebsite.now>
> :B_udnR-cpspZPCnWnZ2dnUVZ_t6dnZ2d(a)web-ster.com...
>> Shenzhi wrote:
>>> Hi,friends!
>>>
>>> I have a difficulty in naming a portion of the FIR filter.
>>> For a simple example: y(n)=h(2)*x(n-2)+h(1)*x(n-1)+h(0)*x(n)
>>> How can I name a portion of "h(2)*x(n-2)" or "h(1)*x(n-1)"?
>>> Could it be named as "partial product" or some other names?
>>> Who can give me an appropriate name to it?
>> How about "terms" -- "two clock delay term", or "x(n-2) term".
>>
>> Or "coefficient" -- if you were to put the filter into the z domain you'd
>> have a polynomial in z^-1, i.e. Y = h(2) * X * z^-2 + h(1) * X * z^-1 +
>> h(0) * X. Then h(0) would become the zero-order coefficient, h(1) would
>> be come the first-order coefficient, etc.
>>
>> --
>> Tim Wescott
>> Control system and signal processing consulting
>> www.wescottdesign.com
>
>

How about a "MAC sequence"?
The whole sequence from n=0 to n=(N-1)
would then of course be a "Big MAC"

Regards,
John
From: Al Clark on
John Monro <johnmonro(a)optusnet.com.au> wrote in
news:4bb57623$0$16520$afc38c87(a)news.optusnet.com.au:

> Shenzhi wrote:
>> Thanks, Tim!
>>
>> "Tim Wescott" <tim(a)seemywebsite.now>
>> :B_udnR-cpspZPCnWnZ2dnUVZ_t6dnZ2d(a)web-ster.com...
>>> Shenzhi wrote:
>>>> Hi,friends!
>>>>
>>>> I have a difficulty in naming a portion of the FIR filter.
>>>> For a simple example: y(n)=h(2)*x(n-2)+h(1)*x(n-1)+h(0)*x(n)
>>>> How can I name a portion of "h(2)*x(n-2)" or "h(1)*x(n-1)"?
>>>> Could it be named as "partial product" or some other names?
>>>> Who can give me an appropriate name to it?
>>> How about "terms" -- "two clock delay term", or "x(n-2) term".
>>>
>>> Or "coefficient" -- if you were to put the filter into the z domain
>>> you'd have a polynomial in z^-1, i.e. Y = h(2) * X * z^-2 + h(1) * X *
>>> z^-1 + h(0) * X. Then h(0) would become the zero-order coefficient,
>>> h(1) would be come the first-order coefficient, etc.
>>>
>>> --
>>> Tim Wescott
>>> Control system and signal processing consulting
>>> www.wescottdesign.com
>>
>>
>
> How about a "MAC sequence"?
> The whole sequence from n=0 to n=(N-1)
> would then of course be a "Big MAC"
>
> Regards,
> John
>

And do you want FIRs with that?

Sorry....

Al