Recent content by Luongo

thanks a lot for the help, assholes

well i have the unit function but it goes from 0 to 1 with a ramp between that range

1. I produced a unit set function in MATLAB however my professor requires me to use a ramp function to be multiplied to a signal to filter out unnecessary parts of an earthquake chirp, this is being used in my project to determine whether the chirp was caused by a nuclear bomb. 2. ideally...

it turns out i made a mistake with my epsilion correction factor, it works now though. thanks

I'm doing some research with MATLAB, where i have a simple chirp. y = sin(x.^2) i take the FFT of the chirp, set the upper half of the FT of the signal to 0, and take the IFFT of this to recover the original chirp y with real and imaginary parts. then i use the formula for calculation of the...

the course is called "the Fourier transform and its applications" so yeah I'm pretty sure i don't mean laplace transform. can someone help please my midterms tommorow and i have no clue..

1. find the inverse FT of 1/(iw+3)3 2. well partial fractions gave the same thing back... I'm not sure how to transform this as there's no property that deals with cubics. 3. i tried using the differentiation property but it doesn't work as it increases the power of 3 to 4 and so...

1. find the inverse Fourier transform of f(w)=e-i5wsinc(2w) 2. I set up the integral to be from defn of sinc: 1/2pi*integral from -infinity to infinity (sin(2w)/2w)*e^-5w 3. i have no idea how to solve this integral, is there a better way to do this? i know that rect(t) has a...

my friend said i am wrong...?

i think so thanks

1. how do i find the period of summation of some function ie: 2^-k or cos(pi k) multiplied by some complex exponential ei7kt ie: f( t ) = \sum 2-kei7kt 2. does anyone know the formula for finding the period of summations of complex exponentials? note this is for fourier 3. would i say that...

the smallest period for both is PI. thus PI should be the fund period of the sum of the two is this logic right/

can you save me the misery and tell me what it is? i work better once i have the solution is it pi?

you're just asking me what I'm asking you in other words im not sure. the fund freq is the smallest period for the function and pi/3 and pi/4 are those... summed right

if its so simple then do it yourself