Transcription of Chapter 5 Amplitude Modulation Contents - UMD
{{id}} {{{paragraph}}}
Example: stock market
Chapter 5 Amplitude Modulation Contents - UMD
Chapter 5 Amplitude ModulationContentsSlide 1 Amplitude ModulationSlide 2 The Envelope and No OvermodulationSlide 3 Example for Single Tone ModulationSlide 4 Measuring the Modulation IndexSlide 5 Transmitted vs. Message Power ins(t)Slide 6 Powers in Single Tone Case (cont.)Slide 7 Spectrum of an AM Signal (cont.)Slide 8 Demodulating by Envelope DetectionSlide 9 Square-Law Envelope Detector (cont.)Slide 10 Sampling Rate for Square-Law DetectorSlide 11 Hilbert Transforms and ComplexEnvelopeSlide 12 Hilbert Transforms (cont.)Slide 13 Pre-Enveope or Analytic SignalSlide 14 Spectrum of Pre-EnvelopeSlide 15 Transforms of Pre and Complex EnvelopesSlide 16 Pre-Envelope of AM SignalSlide 17 Envelope Detector Using the HilbertTransformSlide 18 Experiment Making an AMModulatorSlide 19 Experiment (cont.)
Chapter 5 Amplitude Modulation AM was the first widespread technique used in commercial radio broadcasting. An AM signal has the mathematical form s(t) = Ac[1+kam(t)]cosωct where • m(t) is the basebandmessage. • c(t) = Ac cosωct is called the carrierwave. • The carrier frequency, fc, should be larger than the highest spectral component ...
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: