102_1_final_practice

102_1_final_practice - Systems and Signals Lee, Spring...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Systems and Signals Lee, Spring 2009-10 EE102 Final Practice Problem 1. Fourier Series A linear amplifier has an output y that is proportional to the input x , y = a 1 x where a 1 is a constant. In practice an amplifier will have a more complex characteristic y = a + a 1 x + a 2 x 2 + a 3 x 3 + If we apply an input x ( t ) = cos( t ) ideally we would get an output spectrum that looks like - - 2 - 3 3 2 1 2 where weve assumed a 1 = 1 for simplicity. In practice we get something different, and this tells us something about the amplifier char- acteristic. For each of the following amplifier characteristics, determine what the output Fourier series spectrum looks like when the inputs is x ( t ) = cos( t ). Hint: What does the spectra of cos n ( t ) look like for different n ? Dont integrate! 1 a) Find the output Fourier series spectrum when the amplifier characteristic is y = x + 0 . 1 x 3 ....
View Full Document

This note was uploaded on 12/09/2010 for the course EE 102 taught by Professor Levan during the Spring '08 term at UCLA.

Page1 / 10

102_1_final_practice - Systems and Signals Lee, Spring...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online