Finding Impulse Response of Difference Equation

[Nickpga]

Homework Statement

Part of a lab, but basically I need to find the impulse response from this difference equation

y[n] = x[n] + 0.7x[n - 64]

Relevant Equations

y(n) = x(n) convoluted with h(n)
Y(n)/X(n) = H(n)

And really that's all I know how to do myself. If someone can explain/lead me through this, that will be very helpful. Thanks

 

[berkeman]

No, you really have shown no work, so we can't "lead" you through it. As you know, you are required to show some effort here before we can offer tutorial help on schoolwork.

What is the definition of convolution for discrete equations? Have you tried doing this in Excel at least, to see what the impulse response looks like?

http://www.astro.rug.nl/~vdhulst/SignalProcessing/Hoorcolleges/college03.pdf

 

[berkeman]

Here are a couple more resources to hopefully help you out:

https://www.analog.com/media/en/technical-documentation/dsp-book/dsp_book_Ch6.pdf

 

[Jody]

Do they write it as Y(n)? I thought they might use Y(z) instead. Is it possible to write x[n-64] in a way that might be helpful for you to start with and are there any transforms you can try with your equation?