_Signal_Exam06NovQes - EE2009/EE2009E Signals / page 1...

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

View Full Document Right Arrow Icon
EE2009/EE2009E Signals / page 1 NATIONAL UNIVERSITY OF SINGAPORE EXAMINATION FOR (Semester I: 2006/2007) EE2009/EE2009E – SIGNALS November 2006 – Time Allowed: 2 Hours INSTRUCTIONS TO CANDIDATES : 1. This paper contains SIX ( 6) questions and comprises NINETEEN (19) printed pages. 2. Answer any TWO ( 2 ) questions from Section A, and any TWO ( 2 ) questions from Section B. 3. All questions carry equal marks. 4. This is an OPEN BOOK examination. Programmable calculators are allowed. 5. Write your matric number and the numbers of the questions you have attempted in the spaces provided below. 6. All your answers must be written neatly in the appropriate spaces provided in the question paper. QUESTION NUMBER MARKS TOTAL MATRICULATION NUMBER :
Background image of page 1

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

View Full DocumentRight Arrow Icon
EE2009/EE2009E Signals / page 2 SECTION A (Answer Any TWO Questions) Q.1 (a) A signal from a certain test point in a prototype DVD recorder has a form given by . Suggest a possible set of values for the constants , b and () ( ) t j t j 0 4 ω π a a be t a e t x 6 5 cos 3 + + = 0 . For these suggested values, determine and sketch the amplitude and phase spectra of the signal. (15 Marks) (b) To further develop the prototype recorder, an engineer uses a spectrum analyzer and an oscilloscope to observe the signal ( ) t x a . Based on the results from part (a), sketch the spectrum that would be displayed on the spectrum analyzer. Is it likely that the oscilloscope shows a waveform that is rectangular or triangular in shape? Will the oscilloscope be able to show a stationary waveform?
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/02/2009 for the course ECE EE2009 taught by Professor Prof.c.c.ko during the Fall '07 term at National University of Singapore.

Page1 / 7

_Signal_Exam06NovQes - EE2009/EE2009E Signals / page 1...

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