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GENERAL INFORMATION
appendix B, Random Signals and Noise
Published: 22 August 2005
Chapter DOI: http://dx.doi.org/10.1117/3.626142.apb
Chapter Page Count: 9
pages
Chapter Contents
- B.1 Introduction
- B.2 Definition of Random Processes
- B.3 Mean and Autocorrelation Function of Random Processes
- B.3.1 Properties of the autocorrelation function rX(τ)
- B.3.2 Examples of stationary random processes
- B.4 Power Spectrum of Stationary Random Processes
- B.4.1 White noise process
- B.5 Noise through Linear Filters
Excerpt
B.1 Introduction
Noise is defined as an unwanted signal interfering with a desired signal. The noise process can be natural or man-made. Examples of natural noise are noise in electronic circuits and atmospheric disturbances. Man-made noise sources include 60-Hz interference from power lines, interference from other users in a CDMA communication system, and noise from an automobile ignition system. This appendix will study random processes and their statistical properties, and develop useful tools for analyzing noise in communication systems.
©2005 Society of Photo-Optical Instrumentation Engineers
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