ch3.2_angle_modulation_handout

ch3.2_angle_modulation_handout - 1 1 EEN 404 EEN 404...

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Unformatted text preview: 1 1 EEN 404 EEN 404 Communication Systems Communication Systems Ch3.2: Angle Modulation Ch3.2: Angle Modulation 2 Classification: Linear modulation Phase modulation Digital Analog Angle modulation Analog pulse modulation (PM) Freq. modulation (FM) Continuous-wave modulation 3 3.2 Angle Modulation 3.2 Angle Modulation Definition: either the phase or the time derivation of the phase of the carrier is varied linearly with the message signal m(t) Model: Types: Phase modulation Phase modulation Frequency modulation 2 4 Modulation: instantaneous phase: phase deviation: instantaneous frequency definitions instantaneous frequency: frequency deviation: 5 Phase modulation (PM): Frequency modulation (FM): f d : frequency derivation constant phase derivation 6 Example: instantaneous phase: phase deviation: frequency deviation: maximum phase deviation: maximum frequency deviation: instantaneous frequency: 3 7 Example 1: m(t) 1 t PM FM 8 (a) Message signal....
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ch3.2_angle_modulation_handout - 1 1 EEN 404 EEN 404...

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