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Search Results for "filter"

  

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Re: gain scaling of comb filter

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... Re: gain scaling of comb filter

how to transform from analog Bandpass filter ----->equivalent Lowpass filter

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... how to transform from analog Bandpass filter ----->equivalent Lowpass filter

digital filters

Sergio Dominguez - Aug 27 2004
Hi all, I have written a digital filter (quite simple and generic) as a*s^2+b*s+c ___________ d*s^2+e*s+f The filter discretized using Tusting. The c... digital filters

filter applicaion   [2 Articles]

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... filter applicaion

Matched Filter   [3 Articles]

xoticsmile - Dec 25 2004
Hey Guys, 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... Matched Filter

NEED TO DESIGN A LOW P ASS FILTER   [2 Articles]

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... NEED TO DESIGN A LOW P ASS FILTER

gain scaling of comb filter

egan_nc - Jul 29 2003
Hi everyone, 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... gain scaling of comb filter

FIR filter design   [2 Articles]

"marinus.yates" - Sep 13 2007
Hi 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... FIR filter design

Re: NEED TO DESIGN A LOW P ASS FILTER

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... Re: NEED TO DESIGN A LOW P ASS FILTER

Filtering 3d Data

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... Filtering 3d Data

Unknown Filter Type   [2 Articles]

larkjon - Jan 13 2005
Hi, 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)... Unknown Filter Type

block processing, filter behaviour

competitions_2005 - Oct 28 2005
Hello 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. In... block processing, filter behaviour

circular high pass filter

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... circular high pass filter

IIR filter to 2d filter

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 ... IIR filter to 2d filter

question encountered during frequency response masking fir design   [2 Articles]

fu_mengyao - Oct 10 2008
hi everyone: 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... question encountered during frequency response masking fir design

filter

reshma_jacob - Feb 4 2004
hii all... 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... filter

Re: RE: filter function in matlab for awgn

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 ... Re: RE: filter function in matlab for awgn

Relate lowpass filter cutoff frequency with real frequency (Hz) to filter from a sampled signal?

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... Relate lowpass filter cutoff frequency with real frequency (Hz) to filter from a sampled signal?

question for filter implementation

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... question for filter implementation

Fillter design

nazia - Apr 19 2003
Hi guys Can anyone help me in design filter using Matlab with following specification Design an approximation to ideal Low pass filter of bandwith = 100 Hz The ... Fillter design

change a dsp filter for varios sampling frequency   [2 Articles]

emilly - Aug 30 2005
Dear all 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... change a dsp filter for varios sampling frequency

filter and downsample   [3 Articles]

egan_nc - Jun 30 2003
Hi, I designed a filter using remezord function. When I filtered the input first and downsampled later, the filter works fine. out2a=filter(h1,1,out1a); out2b=d... filter and downsample

quantization after multiplication

#ARIJIT BISWAS# - Nov 27 2003
Dear List: I have a doubt in filter implementation! I wish to include the effect of quantization after multiplication with the filter coefficien... quantization after multiplication

RE: filter function in matlab for awgn

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... RE: filter function in matlab for awgn

strange result for filter design   [5 Articles]

Moshe Malkin - Jan 6 2003
Hello, The following code fails completely. Instead of producing the requested filter it returns the filter coefficients as all zeros. Here's the code:... strange result for filter design

Problem in Bandpass filter, passband reappear after half sampling frequency   [4 Articles]

Henry Chang - Sep 18 2002
Hi all, 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... Problem in Bandpass filter, passband reappear after half sampling frequency

Filter design using Remez Exchange Algorithm

himab_g - Jan 20 2006
Hi 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... Filter design using Remez Exchange Algorithm

about cic filter problem   [5 Articles]

liux...@yahoo.cn - Apr 8 2009
Hello all, 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... about cic filter problem

Bandpass filter

jk_meher - Nov 4 2008
Hi, 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... Bandpass filter

filter function

cherrymata - Feb 24 2004
Hi All, is there any filter function in matlab that can filter the signal disturbed by awgn (additive white gaussian noise) ? can anyone help me... thx ve... filter function

filter design

elham askari - Feb 21 2010
hi dears 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... filter design

Implementation of Linear phase IIR filter   [7 Articles]

sham ganth - Sep 26 2003
Sir, 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... Implementation of Linear phase IIR filter

Help using butterworth filters   [2 Articles]

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 ... Help using butterworth filters

Filter Design(Complex Bandpass Filter)

adnan kiani - Jan 10 2008
Hello; 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 ... Filter Design(Complex Bandpass Filter)

how to resample a z transformation???   [6 Articles]

stefanosorrentino - Nov 28 2002
Hello friends. 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... how to resample a z transformation???

frequency sampling filter design code   [2 Articles]

Appalayagari Sreedhar - Oct 10 2002
Hi, 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 ... frequency sampling filter design code

problem in normalization factor in low pass filter implementation   [4 Articles]

i_am_henry - Jul 14 2002
Dear all, Currently, I am working on implementing recursive low pass filter with design equation extracted from manual y(n) = 2*y(n-1) - y(n-2) + x(n) - 2*x(n-... problem in normalization factor in low pass filter implementation

Filtering Guassian noise with Matlab   [6 Articles]

tu5752 - Dec 3 2005
Hello all, I'm generating a 1 kHz square wave and adding Guassian noise to obtain a SNR of 0 dB (using Matlab6.5). The task is to design a filter that will filter out as... Filtering Guassian noise with Matlab

Volterra filter design

mmni...@yahoo.com - Feb 9 2007
How can I design a 2nd order Volterra filter with any "input + noise". Output should be noise free. If anyone can give me an example? Also how can I represent above filter in sta... Volterra filter design

analog filter order for cheby1   [2 Articles]

mao mu - Nov 11 2003
Hi My target filter is a bandpass analog filter. With N=7, cheby1 returns a 14th B(s), A(s). But if the target is a LPF or HPF, the results are 7th order B(s),A(s... analog filter order for cheby1
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