How to calculate FIR filter coefficients?

Started by talh...@yahoo.com in Matlab DSP8 years ago 1 reply

hi, I am trying to implement digital FIR filter in my DSP kit. I don't know how to calculate the FIR coefficients. I know the order, sampling...

hi, I am trying to implement digital FIR filter in my DSP kit. I don't know how to calculate the FIR coefficients. I know the order, sampling frequency and my signal bandwidth. I want to design Multi band pass filter. Can anyone help me in this regard and may be e mail me the procedure. It would be very much grateful. My id is (t...@yahoo.com) Thanks.


IIR to FIR with window convertion

Started by haak...@hotmail.com in Matlab DSP14 years ago

Hi all. I have a question about a issue here. I want to convert a non-linear IIR filter to a linear FIR filter as well as= applying a window...

Hi all. I have a question about a issue here. I want to convert a non-linear IIR filter to a linear FIR filter as well as= applying a window to it. It seems like I'm doing it wrong as frequenserespons I get of my new filter= never goes to zero (or close to zero) in the stopband, as well as the band= pass does not look good either. the code: b_window =3D hanning(100); [b,a] =3D but...


problem in normalization factor in low pass filter implementation

Started by i_am_henry in Matlab DSP17 years ago 3 replies

Dear all, Currently, I am working on implementing recursive low pass filter with design equation extracted from manual y(n) =...

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-3) + x(n-6) The frequency response of the filter is good. However, the manual also mention, in act


FIR Filter with Multiple Zeros.

Started by Nitin Nangare in Matlab DSP19 years ago

I would be greatly obliged if some one could tell me How to Design FIR filter with Multiple Zeros using Matlab filter routine. ...

I would be greatly obliged if some one could tell me How to Design FIR filter with Multiple Zeros using Matlab filter routine. Thanks is advance for your co-operation. Regards, Nitin 


Decimation FIR filter design

Started by QQ in Matlab DSP10 years ago 3 replies

Hi, does anyone know how to design a decimation filter in MATLAB. I do not want CIC filter, but would like to have FIR filter. Thank you very...

Hi, does anyone know how to design a decimation filter in MATLAB. I do not want CIC filter, but would like to have FIR filter. Thank you very much!


wiener filter implemntation.

Started by "Anil.M.S" in Matlab DSP14 years ago

Hi, I am currently working on a speech enhancement project. I am implementing a noise cancellation system using Wiener filter. > From what I...

Hi, I am currently working on a speech enhancement project. I am implementing a noise cancellation system using Wiener filter. > From what I read in the text books and from the net , I got the transfer function for the filter as h(f) = {psd(noisySignal) - psd(noiseSignal) }/psd(noisySignal). I implemented this in matlab ,but the result was a highly distorted signal. I have given my proced


Exponenital Filter design

Started by gordon_ao in Matlab DSP15 years ago 5 replies

Hello Folks At the moment I am trying to design a one pole simple IIR digital filter to simulate thermal heating and...

Hello Folks At the moment I am trying to design a one pole simple IIR digital filter to simulate thermal heating and cooling delay effect with simple equations like 1 - e^(-t/T), where T is a known time constant. I think an one pole IIR filter will do it: Y[n]


recursive frequency sampling filter design

Started by Appalayagari Sreedhar in Matlab DSP17 years ago 1 reply

Dear all, I am working on the recursive frequency sampling filter design. My confusion is, I read the theory saying that as...

Dear all, I am working on the recursive frequency sampling filter design. My confusion is, I read the theory saying that as it contains the poles.and also exactly pole zero cancellation occurs to give the stability. in case of fir filter using remez or any,


Multiband analogue elliptic filter

Started by sofeyaluzuko in Matlab DSP16 years ago

Hi everybody, I'm designing an analogue elliptic stopband filter to filter out more than one frequency band. I'm able to get the ...

Hi everybody, I'm designing an analogue elliptic stopband filter to filter out more than one frequency band. I'm able to get the transfere function for each band by transfering the lowpass to bandstop using a matlab function ie. [newnum newden] = lp2bs (num,den,Wc,Bw). I'm not able t


query- Constrained equiripple filter transfer function

Started by bssr...@gmail.com in Matlab DSP14 years ago 2 replies

Hi, I am working on a project where the design of a Constrained equiripple filter/ Generalized equiripple filter was indicated . could someone...

Hi, I am working on a project where the design of a Constrained equiripple filter/ Generalized equiripple filter was indicated . could someone please send me the transfer function of these filters or a material relating to the same .I would be much obliged. srinivasa


Digital Filter Design

Started by rol015 in Matlab DSP16 years ago 1 reply

G'day! Does anybody know how to "design a filter" (like done in the FDA toolbox) from the MATLAB command window? I have all the...

G'day! Does anybody know how to "design a filter" (like done in the FDA toolbox) from the MATLAB command window? I have all the filter parameters being inputted from variables in the command window, but just can't design the whole thing. The purpose is to run an


how to design an sinc(x).^3 compensated IIR filter in matlab

Started by subrahmanya ks in Matlab DSP15 years ago

Hi, how to design an sinc(x.^3 compensated IIR lowpass filter in matlab?. filter specification are allowed passband ripple = 0.1dB ...

Hi, how to design an sinc(x.^3 compensated IIR lowpass filter in matlab?. filter specification are allowed passband ripple = 0.1dB sampling frequeny = 200kHz cutoff frequency = 15e3; stopband level = -120dB.


EMQF filter (elliptic minimal-Q factors filter)

Started by Diaconu adrian in Matlab DSP8 years ago

Hi, I am tring to resolve a probleme with an EMQF filter with the order 9 but i can't find the correct function to address this kind of filters....

Hi, I am tring to resolve a probleme with an EMQF filter with the order 9 but i can't find the correct function to address this kind of filters. I have found on a site that a function that addresses this kind of filters is apellip_du ( i am adding the link to this information so that anyone who will want to help me, will check it out if they don't belive me) but this functions didn't work in neit...


filterbanks problem?

Started by omid...@yahoo.com in Matlab DSP13 years ago

This MATLAB program is for making a suitable wavelet kernel It derives the Low pass filter by sampling from analog raised cosine function in...

This MATLAB program is for making a suitable wavelet kernel It derives the Low pass filter by sampling from analog raised cosine function in frequency domain and taking ifft from this function to yield the impulse response. (other filters are derived using orthogonal relations). first i wnat know if the filter design method has any problems? The filter has 2 parameters in frequency domain ...


Filter Bank design for audio application

Started by Sanjay S in Matlab DSP15 years ago

> Can anyone please send me the MATLAB code of a 32 channel filter bank of > entire bandwidth range of ( 0 - 22050)Hz normally...

> Can anyone please send me the MATLAB code of a 32 channel filter bank of > entire bandwidth range of ( 0 - 22050)Hz normally employed in audio > codec such as MPEG-1. If you can send a non uniform filter > bank structure of say a 25 or 27 band, correspondingly matching


notch filter-doubt

Started by vani chezhiyan in Matlab DSP16 years ago

hi all, i'm doing preprocessing of ecg signals. i have an ecg signal with sampling frequency 1000hz. i have lowpass filtered &...

hi all, i'm doing preprocessing of ecg signals. i have an ecg signal with sampling frequency 1000hz. i have lowpass filtered & then highpass filtered the signal.now that i want to use a notch filter or comb filter to remove the powerline interference at 60hz( ,180,300,420,5


EMQF filter (elliptic minimal-Q factors filter)

Started by Diaconu adrian in Matlab DSP7 years ago

Hi, I am tring to resolve a probleme with an EMQF filter with the order 9 but i can't find the correct function to address this kind of filters....

Hi, I am tring to resolve a probleme with an EMQF filter with the order 9 but i can't find the correct function to address this kind of filters. I have found on a site that a function that addresses this kind of filters is apellip_du ( i am adding the link to this information so that anyone who will want to help me, will check it out if they don't belive me http://vadkudr.org/Algorithms/EMQFd...


matlab program for comb filter design

Started by pritam kumar das in Matlab DSP17 years ago 2 replies

hi everyone, i am doing my project in 'comb filter design'..as such if anybody would be heplful enough to provide me the...

hi everyone, i am doing my project in 'comb filter design'..as such if anybody would be heplful enough to provide me the algorithm/program for comb filter design using matlab..it would be substantiative for me.. pritam..


Simulink FIR filter problem

Started by petrov05 in Matlab DSP15 years ago

Hi! The world of DSP is new for me, and normally I have a question. Can I implement FIR filter with matlab/simulink on...

Hi! The world of DSP is new for me, and normally I have a question. Can I implement FIR filter with matlab/simulink on TS320C6416 DSP, using C64xx DSP Library? Symmetric FIR filter block is not working. Question is too simple, I know,


Problem implementing Fast transversal RLS filter

Started by shomik chakraborty in Matlab DSP15 years ago

Dear Sir(s), I am a M.Tech student studying Signal Processing. I have to implement Fast Transversal RLS filter for my ...

Dear Sir(s), I am a M.Tech student studying Signal Processing. I have to implement Fast Transversal RLS filter for my project. I implemented the code following Simon Haykin but the code doesnt work. The filter weights are updated but the