Component Identification and Functions of Amplitude Modulation PDF
Document Details
Tags
Summary
This document provides an overview of amplitude modulation, including its components and functions. It details the process of conveying information through amplitude variations in a carrier signal, and describes various components involved in AM modulation and demodulation, highlighting their roles in signal processing and communications. The summary covers key concepts like carrier signals, message signals, modulation, demodulation, and automatic gain control (AGC).
Full Transcript
COMPONENT IDENTIFICATION AND FUNCTIONS OF AMPLITUDE MODULATION CARRIER SIGNAL AGENDA -HIGH FREQUENCY WAVE THAT CARRIES THE INFORMATION. MESSAGE SIGNAL -CONTAINS THE INFORMATION TO BE TRANSMITTED ,MODULATES THE CARRIER SIGNAL...
COMPONENT IDENTIFICATION AND FUNCTIONS OF AMPLITUDE MODULATION CARRIER SIGNAL AGENDA -HIGH FREQUENCY WAVE THAT CARRIES THE INFORMATION. MESSAGE SIGNAL -CONTAINS THE INFORMATION TO BE TRANSMITTED ,MODULATES THE CARRIER SIGNAL 3 AM MODULATOR -COMBINES CARRIER AND MESSAGE SIGNALS TO CREATE THE MODULATED SIGNAL. 4 AM DEMODULATOR -EXTRACTS THE ORIGINAL MESSAGE SIGNAL FROM THE MODULATED SIGNAL. 5 SIDE BANDS -NEW FREQUENCY COMPONENTS CREATED DURING MODULATION THAT CARRY THE MESSAGE SIGNAL INFORMATION. 6 BAND-PASS FILTER -USED IN DEMODULATION TO ISOLATE AND EXTRACT THE MODULATING SIGNAL FROM THE MODULATED AM 7 ENVELOPE DETECTOR -ANOTHER COMPONENT OF THE DEMODULATOR THAT RETRIEVES THE ENVELOPE OF THE AM SIGNAL TO RECOVER THE ORIGINAL MESSAGE SIGNAL. 8 AUTOMATIC GAIN CONTROL (AGC) -ADJUSTS THE GAIN OF THE RECEIVER TO COMPENSATE FOR VARIATIONS IN THE RECEIVED SIGNAL STRENGTH. 9 10 THANKS PO!