Angle Modulation-Communication Systems-Lecture Slides, Slides of Data Communication Systems and Computer Networks

Download Angle Modulation-Communication Systems-Lecture Slides and more Slides Data Communication Systems and Computer Networks in PDF only on Docsity! Focus Now Angle Modulation docsity.com Angle Modulation Two Cases: 1) Frequency Modulation  The instantaneous frequency of the carrier signal is changed with respect to the message signal 2) Phase Modulation  The phase of the carrier signal is changed according to the variations in the message signal The Angle of the carrier signal is varied with the modulating signal m(t) docsity.com Frequency Modulation of a sine wave docsity.com FM of a square wave docsity.com (a) Data stream (b) Corresponding FSK signal (frequency relationships are not exact) ® docsity.com Example 5.1 (B.P. Lathi) lyrespectiveandarekandk pf ,10102 5 Sketch FM and PM waves for the following signal in figure (a) below Hint: PM for m(t) is FM for )(tm docsity.com Example 5.2 (B.P. Lathi) lyrespectiveandarekandk pf , 2 102 5 Sketch FM and PM waves for the digital signal in figure (a) below Hint: PM for m(t) is FM for )(tm docsity.com Assignment # 03 • Due Date 21st April 2011 – (Assignments will be collected BEFORE THE LECTURE starts) – Half credit on Late submissions – Zero credit on submissions after 22nd April – Zero credit on copied assignments docsity.com