Hi Sergio,
I am able to design using Parks-McClellan and to be honest I think my UI is
better than ScopeFIR's.
What I would like (but not essential) is the ability to take my filter
coefficients and validate them with another program. I don't see this in
ScopeFIR, although I could possible
21, 2008 08:46 UTC
Subject: Re: [digitalradio] FIR Filters
Hi Sergio,
I am able to design using Parks-McClellan and to be honest I think my UI is
better than ScopeFIR's.
What I would like (but not essential) is the ability to take my filter
coefficients and validate them
Hi,
This is not a problem, but I would like to feed my data into a 3-rd party
program to prove my design, that's all :-)
Simon Brown, HB9DRV
- Original Message -
From: John B. Stephensen
Since the filter coefficients are the impulse response, you should be able to
do a DFT
Simon,
You can use znudigi to do this. See
http://wa5znu.org/2008/znudigi-rpsk
You will need to recompile it, but it is in Java and the source is
provided. The FIRFilter is there, and the designer is separated out.
Leigh/WA5ZNU
On Mon, 21 Jan 2008 12:46 am, Simon Brown wrote:
Hi Sergio,
I
Message -
From: Simon Brown
To: digitalradio@yahoogroups.com ; [EMAIL PROTECTED]
Cc: digitalradio@yahoogroups.com
Sent: Monday, January 21, 2008 17:58 UTC
Subject: Re: [digitalradio] FIR Filters
Hi,
This is not a problem, but I would like to feed my data into a 3-rd
To: digitalradio@yahoogroups.com ; [EMAIL PROTECTED]
Cc: digitalradio@yahoogroups.com
Sent: Monday, January 21, 2008 7:12 PM
Subject: Re: [digitalradio] FIR Filters
A third party DFT implementation should prove that the coefficients aren't
completely incorrect. Beyond that, wouldn't
OK. I have the MDS product (QEDesign 1000) and could compare the coefficients
generated if that helps.
73,
John
KD6OZH
- Original Message -
From: Simon Brown
To: digitalradio@yahoogroups.com
Sent: Monday, January 21, 2008 18:21 UTC
Subject: Re: [digitalradio] FIR Filters
I think maybe what you want is MATLAB.
It has its own Parks-McClellan designer, firpm. It also has an
estimator for required order, given band edges and desired amplitudes.
You can then trivially plot the h(n), error, etc from within Matlab. I
don't know if the free clones of Matlab
I have written my own code to design FIR filters using Parks-McClellan. Are
there any programs I can use to test the filter by supplying my table of
coefficients?
This is part of some SSTV code, I wrote the software as I couldn't find what I
needed out there on the web.
Simon Brown, HB9DRV
An example of the filter design (ignore the numbers in the toolbar please):
http://gallery.ham-radio.ch/main.php?g2_itemId=14198g2_imageViewsIndex=2
Simon Brown, HB9DRV
- Original Message -
From: Simon Brown
I have written my own code to design FIR filters using
Simon,
Check this out:
http://www.dspguru.com/sw/tools/filtdsn.htm
I have tried ScopeFIR so far.
Regards,
Sergio, EA3DU
Mensaje original
De: [EMAIL PROTECTED]
Recibido: 20/01/2008 23:15
Para:
Asunto: [digitalradio] FIR Filters
I have written my own code to design FIR filters using
11 matches
Mail list logo