Technical discussion about Matlab and issues related to Digital Signal Processing.
Search Results for "filter"
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wuqi...@yahoo.cn - May 20 2009
Hi, have you get your answer? I am a beginner of this field. I am in a project that have to use the CIC filter. The gain of the filter also puzzle me a lot. In matlab, I could just...
taisahmad - Nov 7 2006
Transformation from analog Lowpass filter to Bandpass filter is
obtained by following steps
1 - desing low pass filter having specifications of bandpass filter
2 - obtain trans...
Sergio Dominguez - Aug 27 2004
I have written a digital filter (quite simple and generic) as
The filter discretized using Tusting. The c...
Harsh Pradhan - Dec 15 2005
i am trying to apply a filter to a image matrix x ,,
x=imread('image.bmp);please can u tell me how to
apply digital filer to the matrix x,
i can design filter using fdatoo...
xoticsmile - Dec 25 2004
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 filt...
itsmedevi_86 - Nov 28 2007
I need to design a low pass filter with cut-off frequency 150Hz.since
my algorithm involves finding the difference between the energy of the
signal before and after passing t...
egan_nc - Jul 29 2003
I have a 3rd order CIC comb filter with decimation ratio of 16. The
freq response of the filter shows a gain of 60 dB. How do I scale
the gain of thi...
"marinus.yates" - Sep 13 2007
I'm busy designing a decimation filter which takes 8 bits from a
excessively oversampled ADC and decimates the signal. I need a FIR
filter to have an increased resolution...
wuqi...@yahoo.cn - May 20 2009
try fdatool in matlab. It is helpful.
> I need to design a low pass filter with cut-off frequency 150Hz.since
> my algorithm involves finding the difference between the ene...
simon connol - Aug 12 2003
Hi guys !!
First of all, I'd like to say that this group is really excellent, atleast we
people who have questions regarding Matlab can communicate with Other pe...
larkjon - Jan 13 2005
I may have inadvertly posted this twice. If so, I apologize.
I've "inherited" the following filter:
Yn = Yn-1 + C(Xn-Xn-1)^2 - C(Xn-Xn-1)(Yn-1)...
competitions_2005 - Oct 28 2005
I have a question about filter behaviour and block processing.
I have a signal x[k]=s[k]+n[k] where s is clean speech and n is
colored, gaussian noise.
enriquefergosa - Jul 7 2003
Hallo, I need help. I would like to do a 2D circular high pass
filter using the matlab function FSPECIAL('DISK', RADIUS) but, this
function is a low pass filter re...
Harry - Jun 11 2012
I'm currently working on a project to filter out the noise produced from movement in the ECG Signals with an adaptive Filter. I was wondering if someone here has had some expe...
sadaf - Dec 8 2008
hi.can anyone tell me which command can i use to convert an IIR filter into 2D filter.i searched alot but couldn't find anything.please help me out
fu_mengyao - Oct 10 2008
I have all the component filter to make the overall filter, but
could anyone tell me how to put them together in matlab and plot the
overall filter? I am stu...
reshma_jacob - Feb 4 2004
i am trying to write C++ code for the filter function in matlab.
(y=filter(b,a,x))..can any one tell me wat the filter function in
matlab actually does...
Mandar Rahurkar - Feb 27 2004
However in the problem specified the filter command is as good as
filter you use. There is NO way to filter all the AWGN..if you can
find a way to do that would be ...
usu_...@yahoo.com - Oct 18 2010
Thanks for a helpful forum. I have two questions.
1. I am trying to implement a simple FIR filter. All I do is sum 100 samples of the input to get the output.
LĂȘ Anh - Sep 10 2012
Im new here und i have a question from my Bachelorthesis
In a Matlab system ,I have the estimated transfer function from the channel, simply ch_est (in frequency...
Mário_Costa - Aug 21 2009
Hello to all,
My problem is the following:
I have a signal x that was sampled with Fs = 8000 Hz and sampled 1000 samples.
I want to filter the signal using a truncated ver...
nasim ahmed - Jan 10 2006
hi guys, This is nasim, i am working as a DSP engg. in chennai ( india ). My work is to convert many matlab functions in C. just like linkage, cluster and to implement filter in...
nazia - Apr 19 2003
Can anyone help me in design filter using Matlab with following
Design an approximation to ideal Low pass filter of bandwith = 100 Hz
emilly - Aug 30 2005
i have a digital filter H(Z)=1/32*(1-z^-6)^2 /(1-z^-1)^2
with sampling rate being 200Hz, the filter has a rather loe cutoff frequency of fc=11 Hz and introduces a d...
egan_nc - Jun 30 2003
I designed a filter using remezord function. When I filtered the
input first and downsampled later, the filter works fine.
#ARIJIT BISWAS# - Nov 27 2003
I have a doubt in filter implementation!
I wish to include the effect of quantization after multiplication with the
Glen Ragan - Feb 27 2004
Yes, the filter() function will do filtering. Since you seem to be
doing signal detection, you would also be interested in convolution,
conv(), with the time-revers...
Moshe Malkin - Jan 6 2003
The following code fails completely.
Instead of producing the requested filter
it returns the filter coefficients as all zeros.
Here's the code:...
Henry Chang - Sep 18 2002
I am beginner in digital filter design. Currently, I am designing a
bandpass filter cut-off at 500hz and 1.8khz, with sampling frequency
6k Hz. I use b...
himab_g - Jan 20 2006
I am new to filter design. I have to design Smith-Barnwell Filters
for lengths N= 4,8,16,31,64.. using Remez Exchange Algorithm.
These are the steps to design the filt...
liux...@yahoo.cn - Apr 8 2009
In the book of "understanding of digital signal processing", it is said that cic filter has a inherent problem which is cic filter can not remove the outband imgage c...
jk_meher - Nov 4 2008
I have to design a band pass filter followed by a decimator in some
application .Design of digital band pass filter is ok.But how to
implement filter followed by decim...
cherrymata - Feb 24 2004
is there any filter function in matlab that can filter the signal
disturbed by awgn (additive white gaussian noise) ?
can anyone help me...
elham askari - Feb 21 2010
I have designed a chebyshev 1 filter by matlab by impulse invariance method with these below codes
now I want to perform this filter on an image and see the result effe...
sham ganth - Sep 26 2003
Iam trying to implement Linear phase IIR filter. My problem is that i
want to reset the state variable of the Elliptic lowpass filter i
want your suggestions...
cool...@hotmail.com - Nov 2 2005
Hello, I'm currently taking an Electrical Engineering class but I'm a Mathematics Graduate student so I'm missing some of the screws that put this whole shebang together so I'm ...
adnan kiani - Jan 10 2008
I need some help regarding complex bandpass filter design. The task is to design a complex BPF with passband at 8-12MHz and stopbands at -16-7MHz and 13-16MHz. The idea is ...
feyzakent - Feb 11 2011
I want to design a decimation filter for a Sigma-Delta modulator. The modulator input is 20Khz sinus signal. And this signal is oversampled to 2.5Mhz. So decimation ratio is...
stefanosorrentino - Nov 28 2002
I have an apparently unsolvable problem:
I have a given IIR filter (they give me the poles and the zeros).
The filter was originally sampled at a g...
Appalayagari Sreedhar - Oct 10 2002
I am sreedhar.
i am some problem with designing the frequency sampling fir filter,
i need a frequency sampling filter design matlab code, actually i ...