Hello, I have a basic question about cross correlation. From the wikipedia article, cross correlation is defined for 2 continuous functions f,...

Hello, I have a basic question about cross correlation. From the wikipedia article, cross correlation is defined for 2 continuous functions f, g as (f * g) (n) = \integral_{-inf}^{inf} f(t) g(t+n) dt So we're basically shifting g and finding the lag (or n) for which the 2 functions match up best. This is intuitively how I understand cross correlation from reading the wikipedia article. ...

Hi everbody.I have a doubt.I am doing a problem of filtering(fir) in which we have to acquire our carrier precisely ..For that we have to do the...

Hi everbody.I have a doubt.I am doing a problem of filtering(fir) in which we have to acquire our carrier precisely ..For that we have to do the decimation, filtering(LPF) and down conversions(it is areal time application).TO check the frequency I have to do fft at each stage ..NOw the doubt comes is every time I do fft at each stage, the amlitude of fft peak decreases and it becomes very low at ...

Hello I have a simulated voice signal, from that signal I can extract thepeak amplitudes and the time which it occurs using a peak...

Hello I have a simulated voice signal, from that signal I can extract thepeak amplitudes and the time which it occurs using a peak findingalgorithm called peakdet (peakdet.m). Now what I want to do isdetermine how much successive peak amplitudes vary (this is calledshimmer) and how much successive pitch periods vary (this is calledjitter). I implementedthis using MATLAB (JitterShimmer.m). ...

i have gui-based program with 2 buttons. i wrote button 1's callback line: -------------------------- function...

i have gui-based program with 2 buttons. i wrote button 1's callback line: -------------------------- function pushbutton1_Callback(hObject, eventdata, handles) run test -------------------------- When i click "button 1", it should run external .m file "test.m" . It works, it open test.m file and make some calculation.. -------------------------- test.m : a = 10 b = 20 assign...

Hello everybody, I have a problem in phase shift with Fourier transform: what I did is to create a cosine function with known period, in...

Hello everybody, I have a problem in phase shift with Fourier transform: what I did is to create a cosine function with known period, in example T=40 and perform an FT on that signal. FT give me correct period but phase is correct only if I perform FT on an integer multiple data points, in example T=40 and num.points 400 or any x*40. I get max phase shift (180?) with T/2, so in previous e...

Hi everyone .. Well I m doing a project on UWB system analysis .. As i dont know much about matlab .. I need some information .. I have created...

Hi everyone .. Well I m doing a project on UWB system analysis .. As i dont know much about matlab .. I need some information .. I have created a matrix which contains my transmitted signal .. and also i have found the matrix of channel impulse response .. now i want to convolve them .. i know there is a command in matlab conv(a,b) but i dont know how to put this resulting vector after convo...

Hi tarang .. i need a bit more elaboration on colored noise .. can u please give a small code which can generate colored noise ?? thanx in...

Hi tarang .. i need a bit more elaboration on colored noise .. can u please give a small code which can generate colored noise ?? thanx in advance Ali Can anybody elaborate on this.if h(t) is the impulse response of the filter I have to send white Gaussian noise to it,in continuous domain .In matlab simulation I have to generate a vector of Gaussian random variables using randn and con...

Can anybody elaborate on this.if h(t) is the impulse response of the filter I have to send white Gaussian noise to it,in continuous domain .In...

Can anybody elaborate on this.if h(t) is the impulse response of the filter I have to send white Gaussian noise to it,in continuous domain .In matlab simulation I have to generate a vector of Gaussian random variables using randn and convolve it with the discrete filter coefficents and use each element of the output vector as one time instant value.Is it correct Thank You Rakesh > > >

Hi Friends, I Want to run my matlab m file in to code composer studio with dsk 6713 dsp platform. how can i link the matlag with cc studio? i...

Hi Friends, I Want to run my matlab m file in to code composer studio with dsk 6713 dsp platform. how can i link the matlag with cc studio? i have already m-file and i want to run it directly on my dsp kit using ccsstudio. is this possibe? please reply me as soon as fast.

Hi everyone. I m new to matlab and digital signal processing. So i need your help! As an excercise i was given the following signals alpha =...

Hi everyone. I m new to matlab and digital signal processing. So i need your help! As an excercise i was given the following signals alpha = .1; fs = 1; %sampling frequency [Hz] t = (1:256)./fs; %time array [s] x = exp(-alpha.*t); %input array x=e^(-at) y = ones(1,256); %initially set all values to be equal to 1 y(1:20) = zeros(1,20); %then set the first group of samples to zero I ...