How to name this portion of a FIR filter?
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From: Shenzhi on 2 Apr 2010 12:07 Thank you, friends! Maybe I haven't described my need clearly. In one of my papers, the different coefficients used different quantization wordlength, so I want to express that the results (K) of "K(2)=h(2)*x(n-2)" and "K(1)=h(1)*x(n-1)" have different calculation precisions. I'm looking for a proper name to the multiplication result---"K". Is the name of "partial product" correct? "Al Clark" <aclark(a)danvillesignal.com> :Xns9D4E50FFE442Eaclarkdanvillesignal(a)69.16.185.247... > 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
From: Les Cargill on 2 Apr 2010 18:52
Al Clark wrote: > 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 And now... The Larch. -- Les Cargill |