Introduction to Modulation
Introduction to Modulation
Introduction to Modulation
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EE215CB. RazaviWin. 10 HO #2• PM and FM- Insensitive <strong>to</strong> nonlinearity- Can operate with nonlinear PA.- But occupies more BW.How <strong>to</strong> build a frequency modula<strong>to</strong>r?- Insensitive <strong>to</strong> nonlinearity- Can operate with nonlinear PA.- But occupies more BW.• Narrowband FM ApproximationIf the phase component is much less than 1 rad, then:For example, ifDigital <strong>Modulation</strong>Quality is quantified by bit error rate (BER). For voice, BER = 10 -3 .• Binary Shift Keying22
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