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Facultatea de Electronică, Telecomunicații și Tehnologia Informației

Universitatea „Politehnica”, București

Prelucrarea igitală a !emnalelor

"ucrarea de "a#orator$ %nali&a 'n frecvență

(er#u )eorgiana*%ndreea

+ica )eorgian

București -./

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0 Bac1ground E2ercises

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3 4ontinuous*Time Fre5uenc6 %nal6sis

30. !6nthesis of Periodic !ignals

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30 7odulation Pro8ert6

1. Triangular pulse duration of 1 sec; period of 2 sec; modulating frequency of 10 Hz (initial settings of the experiment).

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2. Triangular pulse duration of 1 sec; period of 2 sec; modulating frequency of 1 Hz.

!. Triangular pulse duration of 1 sec; period of ! sec; modulating frequency of 10 Hz.

". Triangular pulse duration of 1 sec; period of # sec; modulating frequency of 10 Hz.

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309 !6stem %nal6sis

 

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: iscrete*Time Fre5uenc6 %nal6sis

5.1 Discrete-Time Fourier Transform

1.

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2.

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:0 !6stem %nal6sis

y (n) $ 0.%y (n - 1) & 0.!x (n) & 0.2"x (n - 1)

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1. 'recena pi*1#

2. 'recena pi*+

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!. 'ecena pi*"