2-Introduction Noise Analysis

2-Introduction Noise Analysis - PRINCIPLES OF...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
PRINCIPLES OF COMMUNICATIONS 2-INTRODUCTION TO NOISE ANALYSIS
Background image of page 1

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

View Full DocumentRight Arrow Icon
NOISE Noise is any unwanted signal that corrupts and distorts the desired signal (or signals) in any way Effects of Noise: Distorted in shape Increase or decrease in amplitude Delayed slightly in time Corrupts or modifies the signal
Background image of page 2
Effects of noise in System Performance Noise can cause a listener to misunderstand the original signal or be unable to understand it all. Noise can cause the receiving system to malfunction Noise can also result in a less efficient system
Background image of page 3

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

View Full DocumentRight Arrow Icon
CLASSIFICATION OF NOISE 1. External Noise 2. Internal noise
Background image of page 4
EXTERNAL NOISE 1. Atmospheric noise (Static Noise) Produced mostly by lightning discharges in thunderstorms Affects frequencies below 20MHz Power spectrum of atmospheric noise decreases rapidly as the frequency increases Decreases with increasing latitude on the surface of the globe Severe during the rainy season in regions near the equator
Background image of page 5

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

View Full DocumentRight Arrow Icon
2. Galactic noise
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 12

2-Introduction Noise Analysis - PRINCIPLES OF...

This preview shows document pages 1 - 7. Sign up to view the full document.

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