FPGARelated.com
Forums

cutoff frequency

Started by fazulu deen May 31, 2008
Hai,

What is the cutoff frequency range setted for communication and
multimedia application??And which is the optimal FIR filter design
method suited for that??

regards,
faz
"fazulu deen" <fazulu.vlsi@gmail.com> wrote in message 
news:04f3b99d-e815-4d7e-b9ea-9cc1a2fc6795@l28g2000prd.googlegroups.com...
> Hai, > > What is the cutoff frequency range setted for communication and > multimedia application??
Between 0.00001 Hz or less and 100GHz or greater depending on the application
>And which is the optimal FIR filter design > method suited for that?? >
Variable ratio multitap with adaptive confocal formalized feedback
On Sat, 31 May 2008 09:48:17 +0100, "Icky Thwacket" wrote:

>>And which is the optimal FIR filter design >> method suited for that?? > >Variable ratio multitap with adaptive confocal formalized feedback
Really? In fairness to the OP we ought to mention the possibility of polyglobular phase-incontrovertible Tchebyshev locus diagrams. I find them invaluable for completing my sub-fusc harmonic variance charts for phase-denibulized channels. -- Jonathan Bromley, Consultant DOULOS - Developing Design Know-how VHDL * Verilog * SystemC * e * Perl * Tcl/Tk * Project Services Doulos Ltd., 22 Market Place, Ringwood, BH24 1AW, UK jonathan.bromley@MYCOMPANY.com http://www.MYCOMPANY.com The contents of this message may contain personal views which are not the views of Doulos Ltd., unless specifically stated.
Hai,


Between 0.00001 Hz or less and 100GHz or greater depending on the
application

Can i say the cutoff frequency range can fall anywhere inbetween
0.0001hz to 100Ghz for communication and multimedia application..??

Variable ratio multitap with adaptive confocal formalized feedback

can u suggest among the following which is the optimal filter design
method for the above applications..
1.equiripple
2.window
3.constant least squares
4.complex equiripple
5.interpolated FIR

regards,
faz





On May 31, 3:05=A0pm, Jonathan Bromley <jonathan.brom...@MYCOMPANY.com>
wrote:
> On Sat, 31 May 2008 09:48:17 +0100, "Icky Thwacket" wrote: > >>And which is the optimal FIR filter design > >> method suited for that?? > > >Variable ratio multitap with adaptive confocal formalized feedback > > Really? =A0In fairness to the OP we ought to mention the > possibility of polyglobular phase-incontrovertible > Tchebyshev locus diagrams. =A0I find them invaluable for > completing my sub-fusc harmonic variance charts for > phase-denibulized channels. > -- > Jonathan Bromley, Consultant > > DOULOS - Developing Design Know-how > VHDL * Verilog * SystemC * e * Perl * Tcl/Tk * Project Services > > Doulos Ltd., 22 Market Place, Ringwood, BH24 1AW, UK > jonathan.brom...@MYCOMPANY.comhttp://www.MYCOMPANY.com > > The contents of this message may contain personal views which > are not the views of Doulos Ltd., unless specifically stated.
"fazulu deen" <fazulu.vlsi@gmail.com> wrote in message 
news:8a769af7-bae0-4b22-b2fa-5eab42bc1a26@w34g2000prm.googlegroups.com...
Hai,


>Between 0.00001 Hz or less and 100GHz or greater depending on the >application
>Can i say the cutoff frequency range can fall anywhere inbetween >0.0001hz to 100Ghz for communication and multimedia application..??
Yes probably
>Variable ratio multitap with adaptive confocal formalized feedback
>can u suggest among the following which is the optimal filter design >method for the above applications.. >1.equiripple >2.window >3.constant least squares >4.complex equiripple >5.interpolated FIR
Over the frequency range in question, probably a generalized mix of all of them.
"Jonathan Bromley" <jonathan.bromley@MYCOMPANY.com> wrote in message 
news:ra8244hivnivfr1cas3spthtolgnts05v2@4ax.com...
> On Sat, 31 May 2008 09:48:17 +0100, "Icky Thwacket" wrote: > >>>And which is the optimal FIR filter design >>> method suited for that?? >> >>Variable ratio multitap with adaptive confocal formalized feedback > > Really? In fairness to the OP we ought to mention the > possibility of polyglobular phase-incontrovertible > Tchebyshev locus diagrams. I find them invaluable for > completing my sub-fusc harmonic variance charts for > phase-denibulized channels. > --
Yes you are right - forgot about that one - thanks for reminding me. -- although I don't think they are quite as accurate in the sub Hz range due to non convergence of the cyclohelical semidisquashed hydronoid reciprocity function.
Icky Thwacket wrote:

>>Can i say the cutoff frequency range can fall anywhere inbetween >>0.0001hz to 100Ghz for communication and multimedia application..?? > > Yes probably
But a 100GHz cutoff frequency is required only to avoid quantum matter aliasing with high resolution graviton lenses and holoemitters. -- Frank Buss, fb@frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de
Hai,

Can i say the cutoff frequency range can fall anywhere inbetween
0.0001hz to 100Ghz for communication and multimedia application..??
 Yes probably

Do u mean to say that for communication and multimedia application i
can design a FIR low pass or High pass or band pass or band reject
filter with cutoff frequency fall anywhere inbetween 0.0001hz to
100Ghz?which means can i select cutoff frequencies of FIR LP.HP,BP,BR
filters in this range??

regards,
faz


On May 31, 6:04=A0pm, Frank Buss <f...@frank-buss.de> wrote:
> Icky Thwacket wrote: > >>Can i say the cutoff frequency range can fall anywhere inbetween > >>0.0001hz to 100Ghz for communication and multimedia application..?? > > > Yes probably > > But a 100GHz cutoff frequency is required only to avoid quantum matter > aliasing with high resolution graviton lenses and holoemitters. > > -- > Frank Buss, f...@frank-buss.dehttp://www.frank-buss.de,http://www.it4-syst=
ems.de
fazulu deen wrote:

> Do u mean to say that for communication and multimedia application i > can design a FIR low pass or High pass or band pass or band reject > filter with cutoff frequency fall anywhere inbetween 0.0001hz to > 100Ghz?which means can i select cutoff frequencies of FIR LP.HP,BP,BR > filters in this range??
As Icky Thwacket wrote, probably yes. Ok, at the risk of spoil the party: Of course, before writing this as an answer for your homework exercise, you should think a bit (or trying Google and Wikipedia) about the frequencies of audio and video, the usage for filters and what are the reproducer limits, like speakers. -- Frank Buss, fb@frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de
"fazulu deen" <fazulu.vlsi@gmail.com> wrote in message 
news:795cb9ce-b5b6-4659-9c8e-dc4cb1b27b1b@v26g2000prm.googlegroups.com...
Hai,

> Do u mean to say that for communication and multimedia application i > can design a FIR low pass or High pass or band pass or band reject > filter with cutoff frequency fall anywhere inbetween 0.0001hz to > 100Ghz?
I highly doubt it. KJ