chap4_lec4 - C hapte r4 Transm rs and Re ive itte ce rs Ge...

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Eeng 360 1 Chapter4 Transmitters and Receivers Generalized Transmitters AM PM Generation Inphase and Quadrature Generation Superheterodyne Receiver Frequency Division Multiplexing Huseyin Bilgekul Eeng360 Communication Systems I Department of Electrical and Electronic Engineering Eastern Mediterranean University
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Eeng 360 2 Generalized Transmitters ( 29 ( 29 { } ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 Re cos cos sin Where c j t c c c j t v t g t e R t t t v t x t t y t t g t R t e x t jy t ϖ θ = = + = - = = + Any type of modulated signal can be represented by The complex envelope g ( t ) is a function of the modulating signal m ( t ) Transmitter Modulating signal Modulated signal Example: ( ) Type of Modulation g(m) AM : [1 ( )] PM : p c jD m t c A m t A e +
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Eeng 360 3 Generalized Transmitters R ( t ) and θ ( t ) are functions of the modulating signal m ( t ) as given in TABLE 4.1 Two canonical forms for the generalized transmitter:
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This note was uploaded on 05/24/2011 for the course EE 324 taught by Professor Emreaktaş during the Spring '11 term at Hacettepe Üniversitesi.

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chap4_lec4 - C hapte r4 Transm rs and Re ive itte ce rs Ge...

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