I am actually not familiar with that. I am a mechanical engineer and far from the idea of signals just trying to learn by myself. Could you tell the solution of this problem ? I want to understand the concept.
We have limits between infinite to minus infinite how can i compute when i multiply a function with an unit step function. i mean i have an integral the limits of that integral is infinite to minus infinite and inside the integral i have f(t).u(t-a) this. So how can i compute this integral ?
tr(0.1t-3)
tr(0.2t-3)
p((t-5)/4)
compute the energy?
As far as i know,
i tried to plot the functions and calculate the area under the triangle. but i am not sure that i find the correct answer. Could you let me be sure about the answers?
My answers
1st-->5
2nd-->2.5
3rd-->4
Homework Statement
Consider the random process X(t)=A+N(t), where A is a constant and N(t) is a white Gaussian
noise with spectral density equal to 1. The process X(t) is filtered with a system with impulse
response h(t)=u(t)exp(‐t/T).
Compute the probability that X(t), once filtered, is...
Thank you for your answer but i have another question if you can help me , i will be appreciate...
Consider x1(t) and x2(t) with bandwith B1=10 kHz and B2=15kHz.
The signal y(t)=x1(t)-x2(t) is sampled.
Find the minimum sampling frequency for which it is possible to recover the signal y(t) from...
hello everyone,
I have an exam question about sampling frequency. Actually i really don't get the concept. I have limited sources.
Question:
Bandwith of x(t) 10 kHz
y(t) obtained modulating x(t) with a sinus wave with frequency 30 kHz.
y(t) sampled
a) What is the sampling frequency...
I try to do the convolution. But i think at E2.13 there shouldn't be 1/4. Maybe i do something wrong.
I said E2.10 x(f)
Then E2.11 y(f)
x(f)*y(f)=int(x(z).y(f-z)dz) right ? this is the convolution
so i put E2.11 into the integral. And i subsitute f to f-z the formula becomes...
Hi everyone,
I uploaded a solution about Fourier transform. At the solution of this problem, it states that make convolution. But i tried to do convolution but my result is not same with this result. When you do the convolution with 2.10 and 2.11, is the result 2.13 correct ? How is it done ...