KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK)...
Transcript of KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK)...
![Page 1: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/1.jpg)
KOMUNIKASI DATA
Transmisi Sinyal Analog
Oleh:
Fahrudin Mukti Wibowo, S.Kom., M.Eng
![Page 2: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/2.jpg)
Komponen sinyal analog (review)
• Amplitudo
• Frekuensi
• Fasa/phase
![Page 3: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/3.jpg)
Fasa / phase
• pergeseran sinyal relatif terhadap titik 0
• Fasa bernilai (+), maka sinyal bergeser ke kiri relatif terhadap titik 0 dan sebaliknya
• Diukur dalam derajad atau radian
• radian = 1800
![Page 4: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/4.jpg)
Contoh pergeseran fasa3 gelombang cosinus masing-masing memiliki T = 0,5 s
![Page 5: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/5.jpg)
Data Digital to Sinyal Analog
• Amplitude Shift Keying (ASK)
• Frequency Shift Keying (FSK)
• Phase Shift Keying (PSK)
• Quadrature Amplitude Modulation (QAM)
![Page 6: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/6.jpg)
1. Amplitude Shift Keying (ASK)
• Data digital direpresentasikan oleh sinyal analog dengan amplitudo yang berubah-ubah sesuai amplitudo gelombang pembawa (carrier signal)
• Pada umumnya digunakan 2 level binary ASK atau 2-ASK atau on-off keying (OOK)
![Page 7: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/7.jpg)
![Page 8: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/8.jpg)
2. Frequency Shift Keying (FSK)
• Data digital direpresentasikan oleh sinyal analog dengan frekuensi yang berubah-ubah, sedangkan nilai amplitudo dan phase tetap
• Umunya menggunakan 2 frekuensi pembawa (carrier) f1 dan f2
![Page 9: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/9.jpg)
![Page 10: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/10.jpg)
3. Phase Shift Keying (PSK)
• Data digital direpresentasikan oleh sinyal analog dengan phase yang berubah-ubah, sedangkan nilai amplitudo dan frekuensi tetap
• Bentuk paling sederhana adalah Binary PSK (BPSK)
![Page 11: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/11.jpg)
![Page 12: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/12.jpg)
Data Analog to Sinyal Analog
• Modulasi Amplitudo (AM)
• Modulasi Frekuensi (FM)
• Modulasi Phase (PM)
![Page 13: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/13.jpg)
1. Amplitude Modulation (AM)
• Amplitudo dari sinyal yang telah termodulasi akan berubah sesuai dengan amplitudo dari gelombang asli (informasi)
![Page 14: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/14.jpg)
AM
![Page 15: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/15.jpg)
2. Frequency Modulation (FM)
• Mengubah-ubah frekuensi dari gelombang pembawa mengikuti perubahan amplitudo dari gelombang asli (pemodulasi)
• Phase dan amplitudo gelombang pembawa tetap
![Page 16: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/16.jpg)
FM
![Page 17: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/17.jpg)
3. Phase Modulation (PM)
• Mengubah-ubah fasa dari gelombang pembawa mengikuti perubahan amplitudo dari gelombang asli (pemodulasi)
• Frekuensi dan amplitudo gelombang pembawa tetap
![Page 18: KOMUNIKASI DATA · 2018. 1. 19. · •Frequency Shift Keying (FSK) •Phase Shift Keying (PSK) •Quadrature Amplitude Modulation (QAM) 1. Amplitude Shift Keying (ASK) •Data digital](https://reader034.fdocuments.us/reader034/viewer/2022052616/6097230b94c4c952c31b9b75/html5/thumbnails/18.jpg)
Thank You