# Homework Help: Normalized Autocorrelation of two signals

1. Aug 11, 2016

### baby_1

1. The problem statement, all variables and given/known data
I obtain Autocorrelation function of two signal:

as

2. Relevant equations

3. The attempt at a solution

I want to know what is Normalized Autocorrelation of above equation?

Thanks

2. Aug 11, 2016

### Staff: Mentor

What have you tried so far?

3. Aug 11, 2016

### baby_1

Thanks for your response
I don't know I did right or it should be something else

or

or
......?

4. Aug 12, 2016

### Staff: Mentor

Sorry if this is a dumb question, but how can you form an autocorrelation between different functions? Can you show your detailed work?

5. Aug 12, 2016

### Staff: Mentor

Probably a signal comprised of 2 sinusoidal components.

6. Aug 12, 2016

### baby_1

Thanks for your response
I used https://en.wikipedia.org/wiki/Autocorrelation on a period of (2pi)
I found out my answer. when we want to normalized our autocorrelation function we should pay attention to Rx(at t=0)=1 to scale the function.