APECE-302: Radio & Television...
Transcript of APECE-302: Radio & Television...
![Page 1: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/1.jpg)
APECE-302: Radio & Television Engineering
Course Teacher: Dr. S.M. Riazul Islam
Date: 2012 Year, 07 Month, 17 Day
University of Dhaka, APECELecture Materials on APECE-302
1Web: www.riazulislam.com E-mail: [email protected]
Applied Physics, Electronics & Communication Engineering
University of Dhaka | APECE
DU
Lecture # 10
![Page 2: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/2.jpg)
Contents
Linear Modulation Schemes: DSB-SC, SSB, VSB
DSB-SC Modulation
Coherent Detection
COSTAS Receiver
Quadrature-Carrier Multiplexing
Hilbert Transform and Canonical Representations of Signals
Filtering of Sidebands
2Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 3: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/3.jpg)
DSB-SC Modulation
3Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 4: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/4.jpg)
DSB-SC Modulation
4Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 5: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/5.jpg)
Coherent Detection
5Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 6: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/6.jpg)
Coherent Detection
6Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
• Cut-off frequency > W but less than 2fc-W
• Quadrature null effect of coherent detector? >> perfect Synch.
![Page 7: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/7.jpg)
COSTAS Receiver
7Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 8: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/8.jpg)
Quadrature-carrier multiplexing
8Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
• Tx:
![Page 9: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/9.jpg)
Quadrature-carrier multiplexing
Rx:
9Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 10: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/10.jpg)
Representations of Signals and Systems
10Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 11: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/11.jpg)
11Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 12: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/12.jpg)
Representations of Signals and Systems
12Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 13: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/13.jpg)
Representations of Signals and Systems
13Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 14: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/14.jpg)
Representations of Signals and Systems
14Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
Pre-envelope: g(t) is real valued--
![Page 15: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/15.jpg)
Representations of Signals and Systems
15Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 16: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/16.jpg)
Representations of Signals and Systems
16Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
Canonical Representations of BP Signals
![Page 17: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/17.jpg)
Representations of Signals and Systems
17Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 18: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/18.jpg)
Representations of Signals and Systems
18Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 19: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/19.jpg)
Representations of Signals and Systems
19Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 20: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/20.jpg)
Representations of Signals and Systems
20Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 21: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/21.jpg)
Filtering of Sidebands
21Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 22: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/22.jpg)
Filtering of Sidebands
22Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 23: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/23.jpg)
Filtering of Sidebands
23Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 24: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/24.jpg)
Filtering of Sidebands
24Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 25: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/25.jpg)
Filtering of Sidebands
25Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
![Page 26: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/26.jpg)
Filtering of Sidebands
26Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam
1) SI(t) is completely independentof H(f)
2) Spectral modulation attributedto H(f) is confined solely to the SQ(t)
![Page 27: APECE-302: Radio & Television Engineeringlecture.riazulislam.com/uploads/3/9/8/5/3985970/lecture_10.pdf · Contents Linear Modulation Schemes: DSB-SC, SSB, VSB DSB-SC Modulation Coherent](https://reader034.fdocuments.us/reader034/viewer/2022042122/5e9c9c25cc0ae15f0d009956/html5/thumbnails/27.jpg)
Q & A
27Web: www.riazulislam.com E-mail: [email protected]
University of Dhaka, APECELecture Materials on APECE-302
Dr. SMR Islam