Simulink Tutorial on Digital Modulation Methods - Cengage Learning
Simulink Tutorial on Digital Modulation Methods - Cengage Learning Simulink Tutorial on Digital Modulation Methods - Cengage Learning
592 CHAPTER 13. SIMULINK TUTORIAL ON DIGITAL MODULATION Figure 13.20: Menu Convolution Figure 13.21: Convolution of two NRZ rectangular pulses © 2013 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
13.5. BINARY PHASE-SHIFT KEYING (BPSK) 593 Figure 13.22: Convolution of two raised-cosine pulses (α = 0.5) 2. It can be observed that the zero ISI condition is not exactly met for square-root raised-cosine pulses a with matched filter and small rolloff factor α. Try to explain! SOLUTION 1. NRZ Rectangular ∗ NRZ Rectangular Root-RC ∗ Root-RC for all α Raised-Cosine ∗ Raised-Cosine for α = 0. 2. Square-root raised-cosine pulses have to be implemented with a finite-duration impulse response. For small α the impulse response decreases slowly in the time domain and, therefore, the error due to truncation of the pulse in the time domain becomes noticeable. 13.5 Binary Phase-Shift Keying (BPSK) Binary phase-shift keying (BPSK) serves as a way to get familiar with the
- Page 1 and 2: Chapter 13 Simulink</strong
- Page 3 and 4: 13.2. SHORT INTRODUCTION TO SIMULIN
- Page 5 and 6: 13.2. SHORT INTRODUCTION TO SIMULIN
- Page 7 and 8: 13.2. SHORT INTRODUCTION TO SIMULIN
- Page 9 and 10: 13.4. PULSE SHAPING 581 Figure 13.1
- Page 11 and 12: 13.4. PULSE SHAPING 583 13.4.1 Theo
- Page 13 and 14: 13.4. PULSE SHAPING 585 Summation o
- Page 15 and 16: 13.4. PULSE SHAPING 587 For α = 0.
- Page 17 and 18: 13.4. PULSE SHAPING 589 Figure 13.1
- Page 19: 13.4. PULSE SHAPING 591 Figure 13.1
- Page 23 and 24: 13.5. BINARY PHASE-SHIFT KEYING (BP
- Page 25 and 26: 13.5. BINARY PHASE-SHIFT KEYING (BP
- Page 27 and 28: 13.5. BINARY PHASE-SHIFT KEYING (BP
- Page 29 and 30: 13.5. BINARY PHASE-SHIFT KEYING (BP
- Page 31 and 32: 13.5. BINARY PHASE-SHIFT KEYING (BP
- Page 33 and 34: 13.5. BINARY PHASE-SHIFT KEYING (BP
- Page 35 and 36: 13.6. QUADRATURE PHASE-SHIFT KEYING
- Page 37 and 38: 13.6. QUADRATURE PHASE-SHIFT KEYING
- Page 39 and 40: 13.6. QUADRATURE PHASE-SHIFT KEYING
- Page 41 and 42: 13.6. QUADRATURE PHASE-SHIFT KEYING
- Page 43 and 44: 13.7. OFFSET-QPSK 615 Figure 13.83:
- Page 45 and 46: 13.7. OFFSET-QPSK 617 3. How do the
- Page 47 and 48: 13.7. OFFSET-QPSK 619 Figure 13.98:
- Page 49 and 50: 13.8. MINIMUM SHIFT KEYING (MSK) 62
- Page 51 and 52: 13.8. MINIMUM SHIFT KEYING (MSK) 62
- Page 53 and 54: 13.9. 16-ARY QUADRATURE AMPLITUDE-S
- Page 55 and 56: 13.9. 16-ARY QUADRATURE AMPLITUDE-S
- Page 57 and 58: 13.9. 16-ARY QUADRATURE AMPLITUDE-S
- Page 59 and 60: 13.9. 16-ARY QUADRATURE AMPLITUDE-S
- Page 61: PROBLEMS 633 filter are limited in
13.5. BINARY PHASE-SHIFT KEYING (BPSK) 593<br />
Figure 13.22: C<strong>on</strong>voluti<strong>on</strong> of two raised-cosine pulses (α = 0.5)<br />
2. It can be observed that the zero ISI c<strong>on</strong>diti<strong>on</strong> is not exactly met for square-root<br />
raised-cosine pulses a with matched filter and small rolloff factor α. Try to<br />
explain!<br />
SOLUTION<br />
1. NRZ Rectangular ∗ NRZ Rectangular<br />
Root-RC ∗ Root-RC for all α<br />
Raised-Cosine ∗ Raised-Cosine for α = 0.<br />
2. Square-root raised-cosine pulses have to be implemented with a finite-durati<strong>on</strong><br />
impulse resp<strong>on</strong>se. For small α the impulse resp<strong>on</strong>se decreases slowly in the time<br />
domain and, therefore, the error due to truncati<strong>on</strong> of the pulse in the time domain<br />
becomes noticeable.<br />
13.5 Binary Phase-Shift Keying (BPSK)<br />
Binary phase-shift keying (BPSK) serves as a way to get familiar with the <str<strong>on</strong>g>Simulink</str<strong>on</strong>g><br />
software. Most aspects will be rec<strong>on</strong>sidered in subsequent secti<strong>on</strong>s. They are summarized<br />
in the guideline <strong>on</strong> page 606.<br />
© 2013 <strong>Cengage</strong> <strong>Learning</strong>. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.
Change language