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Technical discussion about Matlab and issues related to Digital Signal Processing.
Search Results for "sampling"
Normalised Sampling [3 Articles]
kristina_go - Feb 8 2006
Hi all,
I know this is a Matlab discussion group, but I would like to ask
regarding DSP in Excel?
Can anyone please enlighten me, what does it mean by Normalised
Sampling?
H... 
Sampling Bandpass signals [3 Articles]
Darien Martinez - Sep 23 2000
Hi everybody,
I have some question about sampling bandpass signals.
There is sampling theorem for this kind of signals,
the sampling rate must be two times the fr... Changing sampling frequency [4 Articles]
kn srivastava - Jan 14 2010
I have a digital filter that is designed for 1kHz sampling frequency.
Everything else remaining the same, I want that filter to work for 4 kHz
sampling frequency.
What do I ne... sampling freq for combined filter [2 Articles]
egan_nc - Aug 5 2003
Hi,
Can anybody please tell me how to set up the sampling freq for a
combined filters.
The sampling freq for the input signal to the first filter h1 is
1.5Mhz, ... am modulation - different sampling frequency [2 Articles]
matz...@gmail.com - Oct 22 2007
Hello everybody,
I am writing a simple am modulator (actually ssb, but it does not really matters :) ). This script shall take as input an audio signal and give as output the am m... Variable Rate Sampling
imranshoaib00 - Nov 25 2003
Hi,
I have to complete my DSP project "variable rate sampling (audio)"
till the 10th of December,2003. I have been instructed that I have to
take the input direct... 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 ... Changing sampling frequency
israel Greiss - Jan 15 2010
A filter designed at 1kHz sampling rate, when used at 4kHz sampling rate,
its frequency response will be stratched 4 times. For example the new
cut-off frequency will be 4 times ... Sampling
sevincbayram - Nov 15 2002
Hi!
Ý am new for matlab and i want to learn how to do sampling with
matlab.For example my problem;
i take a wav file and read it with u=wavread('b'); now i hav... help needed , plotting a signal [8 Articles]
chriskatsis - Jul 14 2005
Hi everyone,
Just one little question.
I want to plot a signal y (where y is a column of a matrix). The
sampling rate was 500Hz
Is there a way when using the plot com... 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... recursive frequency sampling filter design [2 Articles]
Appalayagari Sreedhar - Jan 12 2003
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
e... bandpass sampling
shobha shivarudraiah - Nov 24 2001
hi,
i need to plot the bandpass signal sampling waveforms.
(something like fig 2.9 ,pg 37 in understanding
digital signal processing by richard g.lyons)
i dunno... help for ZOH block
Santanu Sarma - Jul 9 2002
Hi,
Can any one help with simulik zero order hold (zoh) block.
I want the sampling time in the zoh block as a varying input during
simulation run. My sampling tim... sampling rate ???? [7 Articles]
prijit debnath - Jul 31 2002
hello,
i am a new student of dsp. we know for a
bandlimited signal,in order to avoid aliasing the
samplig rate should be >= 2* maxfrequency.....
but what should... HELP ME IN SAMPLING
n_no...@yahoo.com - Oct 9 2007
hi,
i need help in sampling(matlab coding) a four channel AM modulated signal each at carrier frequencies 400Hz,1000Hz, 1600Hz and 2600Hz respectively...
how will i sample my s... An audio recording bandwidth in consumer digital still cameras
Alex Z - Jun 27 2006
Hello.
I'll appreciate your help in assessing the info on the commonly
accepted bandwidth in audio recordings by pocket-type consumer digital
still cameras.
I'm undertaking cer... random row sampling [3 Articles]
Cagin Kandemir Cavas - May 27 2008
Hi all,
Suppose I have a matrix X as follows,
2 3 4 1 8 7 6 2 1 2 5 7 4 7 2 3
Then how should I write a... help with down sampling
d_naidu - Nov 13 2003
Hi guys..
Can anyone help me how to spin and de spin the data in matlab and then pass it into a matched filter and down sample it...
Actually I got to the point... how to convert recorded speech sampling? [4 Articles]
khaifahaluk - Jan 13 2004
i'm new here, i am doing my university project on speech recognition,
if somebody could tell me how to convert recorded speech sampling?
i've already try using resa... problem with IFFT and sampling time
saini_s1978 - Sep 18 2005
Hi everybody,
My problem is as follows:
I get data from a fft analyser after numerous averaging in order
to remove the noise. Now in order to use it i have to take the IF... Plotting FRF magnitude vs frequency
apad...@yahoo.co.uk - Feb 12 2008
I am working on modal testing of structures using forced hammer excitation. Response time series has a sampling frequency of 250Hz and the excitation time series has a sampling fre... fourier transform
shareena_b - Apr 13 2008
hi all,
i have one function, x = (e^-2t) cos (4t) u(t) and i
suppose to compute this fourier transform for the
continuous signal and plot the frequency spectrum. these
are... How to record sound in Matlab? [2 Articles]
senthilpr_in - Jan 13 2002
Hi everybody,
I'm working on a project on speech recog. How do you
record sound in matlab at a sampling freq of 8192Hz. Currently i'm
using windows sound recorder... converting variable sampling rate to fixed rate [2 Articles]
cban...@gmail.com - Jul 17 2008
I am working with a signal that was sampled at a variable rate and consists of an array of values and a separate array of sample times. The sample intervals are random and are not... help in plotting power spectra of FSK modulation
mail_harpreet - Jul 2 2002
i have been trying to get the power spectra of an FSK modulated
scheme...i am getting a very good spectra for m-ary psk and msk and
other schemes by using the fft f... ?? sample rates more than 100kHz [3 Articles]
ravikiran_dn - Aug 25 2003
hi everybody,
i am not able to obtain a sampling rate more than 110 kHz
using MATLAB or BORLAND C++ 5. If I use more than 1 MHz sampling
rate, then more and more ... How to plot freq response for a combined filter
egan_nc - Jul 30 2003
Hi,
Can anybody help me plot a combined frequency response of 2 filters
in Hz?
Hk=Hk1.*Hk2;
The sampling freq for Hk1 is 96Khz and the sampling freq for Hk2 is ... clearing the serial inputbuffer
ashefi - Jan 20 2006
hi all!
i have a little problem with async communication.
i am connecting a sampling device into com1 and reading it.
after 17 or 18 reading cycles the input buffer hav... Re: FFT help needed
kavous jorabchi - Apr 2 2007
close all;clear;clc
% Parameters---------------------------------------------------------------
N = 512; % number of points for FFT
dt = 0.005; % sampling time, 1/Fs wh... Frequency response function (FRF) from input and output with different sampling frequency
apad...@yahoo.co.uk - Jan 15 2008
Dear scholars,
My present work centres on extraction of modal parameters from the plots of magnitude of frequency response response functions, FRFs, versus frequency. FRF is sim... 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... rayleigh fading channels
m_karthik413 - Nov 29 2006
hai friends
i have problem in modelling a rayleigh fading channel.
in matlab one command for rayleigh channels ,in that the parameters
sampling rate , dopplershift and delay sp... Re: Non stationary Transient Data
Jeff Brower - Apr 17 2010
Penixilin-
> I have been trying to process my data with FFT to analyze
> the natural frequency of it. I try to use a high pass filter
> of 1 or 2 HZ because the source of t... Nonuniform SAmpling FIR
Emhemmed B Limsailkhi - Jan 5 2001
>Hi .... We are developing a nonuniform frequency sampling FIR digital
filter (lowpass) with linear phase using Matlab5.3 and DSP toolbox (I
dont remember the versi... recursive frequency sampling filter design
Appalayagari Sreedhar - Jan 16 2003
Dear all,
my problem straight away,
i am doing recursive frequency sampling filter design,
in matlab i design the filter coefficients, i gave the format ... fractional delay filters when sampling at nyquist rate
cathy zuccini - Dec 4 2005
Hi, I'm working on a DSP project (speech coding and synthesis) involving
fractional delay filters. I would appreciate it if you can send me matlab
codes for implementing f... Hilbert transform
Piyush Shah - Jul 27 2005
All
Background:
I have working with ultrasound signals (300 Khz) from a solid state sensor to a target at 3". The received signals from the sensor (300 Khz) are digitized... Re: How to implement the timeline with a L band signal [2 Articles]
ubaid_abdullah - Jan 7 2009
If you are capturing this data from some real-time system, you
shouldn't process the information it contains on the carrier
frequency. Downconvert it to baseband and then downsam... ADC Selection
B S - Apr 19 2010
Hi Guys,
I have been just wondering if any one can guide me about the selection of Analog to Digital conveter. I have a signal with frequency 150KHz and I am thinking to sample ...