Tri Rahajoeningroem, MT T. Elektro - UNIKOM

Presentasi berjudul: "Tri Rahajoeningroem, MT T. Elektro - UNIKOM"— Transcript presentasi:

1 Tri Rahajoeningroem, MT T. Elektro - UNIKOM
Z-Transform Tri Rahajoeningroem, MT T. Elektro - UNIKOM

2 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

3 Peran Transformasi Z Transformasi Z dalam pengolahan sinyal digital mempunyai aturan yang sama dengan Transformasi Laplace dan Transformasi Fourier pada rangkaian dan sistem analog. Transformasi Z dalam pengolahan sinyal digital berperan sebagai tool untuk Spectral Analysis : Mengetahui dan menganalisa spektrum frekuensi dari sinyal dalam domain waktu Terdapat intuisi bahwa kadang tidak mudah menganalisis pada domain waktu. Mempermudah operasi pada domain waktu, konvolusi pada domain waktu dipetakan ke perkalian pada domain Z. Digunakan untuk mendefinisikan fungsi transfer Digunakan untuk melihat respons sistem menggunakan proses table - look- up. Digunakan untuk menganalisis karakteristik dari sistem

4 Definisi Transformasi Z
Transformasi Z sinyal waktu diskrit x(n) didefinisikan: sebagai : Dimana z adalah variable kompleks Atau: X(Z)  Z[x(n)] Hubungan antara x(n) dan X(z): Untuk deret kausal:

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13 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

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25 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

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31 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

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34 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

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44 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

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54 Outline The z-transform Region of convergence Inverse z-transform
Geometric evaluation of FT from Pole-zero plot Properties of z-transform Analysis and characterization of LTI systems using z-transforms System function algebra and block diagram representations

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