Fundamentals of Digital Television Transmission phần 7 pot

... ANTENNAS FOR DIGITAL TELEVISION f = 0° f= 270 ° f=180° f=90° 10 5 D /l = 0.5 f = 0° f= 270 ° f=180° f=90° 5 D /l = 1.25 f = 0° f= 270 ° f=180° f=90° 10 5 D /l = 8.0 10 Figure 7- 28. Azimuth patterns of single ... include excitation of the upper and lower halves of SLOTTED CYLINDER ANTENNAS 181 f = 0° f= 270 ° f=180° f=90° 10 5 D /l = .06 37 f = 0° f= 270 ° f=180° f=90° 10 5 D /l =...

Ngày tải lên: 14/08/2014, 16:20

... systems support a wide range of payload bit rates. The average transmitter power is much less than that required for analog TV transmission. Fundamentals of Digital Television Transmission. Gerald W. ... 2001 John Wiley & Sons, Inc. ISBNs: 0- 471 -39199-9 (Hardback); 0- 471 -21 376 -4 (Electronic) 4 TRANSMITTERS FOR DIGITAL TELEVISION 1 The introduction of digital TV h...

Ngày tải lên: 14/08/2014, 16:20

... 73 1 43 .73 0. 174 24 533 52.68 0.144 58 73 7 43.51 0. 175 25 539 52.34 0.145 59 74 3 43.30 0. 176 26 545 52.00 0.146 60 74 9 43.10 0. 177 27 551 51. 67 0.1 47 61 75 5 42.89 0. 178 28 5 57 51.34 0.148 62 76 1 ... 172 .89 0.043 37 611 48.62 0.1 57 4 69 164. 67 0.046 38 6 17 48.34 0.158 5 79 153.13 0.049 39 623 48. 07 0.158 6 85 1 47. 21 0.051 40 629 47. 80 0.159 7 177...

Ngày tải lên: 14/08/2014, 16:20

... 76 7 38.64 0.210 30 569 46.42 0. 174 64 77 3 38.45 0.211 31 575 46.12 0. 175 65 77 9 38. 27 0.212 32 581 45.83 0. 176 66 78 5 38.09 0.213 33 5 87 45.54 0. 177 67 791 37. 91 0.214 34 593 45.26 0. 178 68 79 7 ... 5 27 78. 27 0.135 24 533 77 .71 0.136 25 539 77 .16 0.1 37 26 545 76 .62 0.138 27 551 76 .08 0.139 28 5 57 75.56 0.140 29 563 75 .05 0.141 30 569 74 .54 0.142...

Ngày tải lên: 14/08/2014, 16:20

... ns. The large amount of phase shift and group delay across a pair of low-band channels for a single echo with an amplitude of 3 dB and a delay of 200 nS is shown in Figure 8 -7. Peak-to-peak amplitude ... Study of Wave Propagation at 850Mc/s,” Proc. IRE, Vol. 41, No. 3, May 1953, pp. 595–611. 17 A. Bloomquist and L. Ladell, “Prediction and Calculation of Transmission Loss in...

Ngày tải lên: 14/08/2014, 16:20

... equipment manufacturer. Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0- 471 -39199-9 (Hardback); 0- 471 -21 376 -4 (Electronic) 1 DIGITAL TELEVISION TRANSMISSION ... Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0- 471 -39199-9 (Hardback); 0- 471...

Ngày tải lên: 14/08/2014, 16:20

... value of the transmitted symbols. Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0- 471 -39199-9 (Hardback); 0- 471 -21 376 -4 ... 1998, p. 115. Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0- 471 -39199-9 (Hardback); 0-...

Ngày tải lên: 14/08/2014, 16:20

... ground, I 2 I 1 D I 1 I 2 D1 Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0- 471 -39199-9 (Hardback); 0- 471 -21 376 -4 (Electronic) 8 RADIO-WAVE ... factor. Modification of the radiation resistance of a dipole in the presence of a ground plane is equivalent to the effect of the mutual impedance of...

Ngày tải lên: 14/08/2014, 16:20

... 2 67 Transmitter: control, 80, 85, 96 cooling, 75 , 78 , 80, 83, 84, 87, 89, 90 performance, 30, 36, 73 , 74 , 77 , 78 , 88, 93 requirements, 36 retrofit of, 94, 95 solid state, 73 , 75 , 76 79 , 83, 87, ... 41, 72 AM/PM conversion, 39, 40, 72 Antenna: aperture, 153, 155, 172 , 186, 196–198 array factor, 155, 160, 161, 1 67, 172 , 173 , 176 , 178 , 179 azimuth pattern, 151, 15...

Ngày tải lên: 14/08/2014, 16:20

... 250.00 250.00 7. Income (5 – 6) 650.00 566.00 478 .64 3 87. 79 293.30 8. Tax at 35% 2 27. 50 198.10 1 67. 52 135 .72 102.65 9. Net income (7 – 8) $422.50 $3 67. 90 $311.12 $252.06 $190.64 Notes: 1. Yards ... 3,000.00 4. Cost of goods sold 2,100.00 2,184.00 2, 271 .36 2,362.21 2,456 .70 5. Operating cash flow (3 – 4) 900.00 816.00 72 8.64 6 37. 79 543.30 6. Depreciation 250.00 250.00 250...

Ngày tải lên: 05/08/2014, 13:20