Fundamentals of Digital Television Transmission phần 1 doc

... Ratio Mode Guard Interval Ratio 1 2 3 1 4 64.26 12 8.52 257.04 1 8 57.83 11 5.67 2 31. 34 1 16 54.62 10 9.24 218 .46 1 32 53. 01 106.03 212 .06 transmission mode and the length of the guard interval. These relationships ... equipment manufacturer. Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  20 01 John Wiley & Sons, Inc. IS...

Ngày tải lên: 14/08/2014, 16:20

... driving-point impedance of an antenna in the presence of another antenna is Z 1 D Z 11 C Z 12 I 2 I 1 where Z 11 is the self-impedance of the antenna, Z 12 is the mutual impedance between the pair of antennas, ... case of the dipole over ground, I 2 I 1 D I 1 I 2 D 1 Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  20 01 J...

Ngày tải lên: 14/08/2014, 16:20

... 12 9 13 6, 14 5 14 7 corrugated, 11 7, 11 8, 13 1 13 5 higher order modes, 12 9, 14 0 14 2 power capacity, 11 7, 11 8, 12 0, 12 3, 12 5, 14 9 pressurization, 14 8 rigid, 11 7, 11 8, 12 2, 12 3, 12 5, 12 9 13 1, 13 6, 14 5, ... 22, 25, 11 7 12 0, 12 2 12 5, 12 9, 13 0, 13 6, 14 0 14 2, 14 5, 14 8, 19 4 AV R , 2 5 Bandwidth: antenna, 11 5, 15 0, 18 9, 19 3 19...

Ngày tải lên: 14/08/2014, 16:20

... Indianapolis, Ind., 19 77, p. 29-2; used with permission.) TRANSMISSION ERRORS 29 1. 00E-09 1. 00E-08 1. 00E-07 1. 00E-06 1. 00E-05 1. 00E-04 1. 00E-03 1. 00E-02 1. 00E- 01 1 8 9 10 11 12 13 14 15 16 Symbol error ... Report and Order, April 3, 19 97, p. A -1. 5 ETS 300 744, March 19 96, pp. 38– 41. 34 PERFORMANCE OBJECTIVES FOR DIGITAL TELEVISION 2 4 6 8 10 12...

Ngày tải lên: 14/08/2014, 16:20

... Points Z 2 Z 1 Z 0 R 0007 0 01 5 010 3 011 1 100C1 10 1C3 10 1C5 11 1C7 for VSB modulation. These 3-bit symbols are clocked at a symbol rate 1 3 of the trellis-coded data rate. The mapping of the constellation ... VSB, a portion of 7 Ibid., p. 85. 58 CHANNEL CODING AND MODULATION FOR DIGITAL TELEVISION 1. 00E-02 1. 00E-03 1. 00E-04 1. 00E-05 1. 00E-06 1. 00E-07 1....

Ngày tải lên: 14/08/2014, 16:20

... 70.99 0 .12 1 8 18 3 14 0.78 0.0 61 33 587 70.55 0 .12 2 9 18 9 13 8 .19 0.062 34 593 70 .11 0 .12 3 10 19 5 13 5.73 0.063 35 599 69.67 0 .12 3 11 2 01 133.39 0.064 36 605 69.25 0 .12 4 12 207 13 1 .15 0.065 37 611 68.83 ... 0 .12 9 18 497 78 .10 0 .11 0 43 647 66.44 0 .13 0 19 503 77.53 0 .11 1 44 653 66.06 0 .13 0 20 509 76.97 0 .11 2 45 659 65.69 0 .13 1 21 515 76.43 0 .11...

Ngày tải lên: 14/08/2014, 16:20

... 2 01. 83 0.070 14 473 12 2.65 0 .11 6 15 479 12 1.66 0 .11 7 16 485 12 0.69 0 .11 8 17 4 91 119 .74 0 .11 9 18 497 11 8. 81 0 .12 0 19 503 11 7.89 0 .12 1 20 509 11 6.99 0 .12 2 21 515 11 6 .11 0 .12 3 22 5 21 115 .25 0 .12 4 23 ... 0.074 12 207 13 8.76 0.076 13 213 13 6. 61 0.077 14 473 83.80 0 .12 6 15 479 83 .13 0 .12 7 16 485 82.49 0 .12 8 17 4 91 81. 85 0 .12...

Ngày tải lên: 14/08/2014, 16:20

... Since the azimuth pattern of a vertically polarized dipole in free space GAIN AND DIRECTIVITY 18 3 17 0 16 0 15 0 14 0 13 0 12 0 11 0 10 0 90 80 70 60 50 40 30 20 10 0 0 2040608 010 0 Azimuth angle in degrees Phase ... excitation of the upper and lower halves of SLOTTED CYLINDER ANTENNAS 18 1 f = 0° f=270° f =18 0° f=90° 10 5 D /l = .0637 f = 0° f=270° f =18 0° f=90° 10...

Ngày tải lên: 14/08/2014, 16:20

... dB 17 dB 2300 ns 19 00 ns 10 0 ns 250 ns 3 24 dB  31 dB 14 dB 3900 ns 15 0 ns 600 ns 4 22 dB 28 dB 11 dB 8200 ns 250 ns 950 ns 5 28 dB 11 dB 400 ns 11 00 ns Model D 18 16 14 12 10 −8 −6 −4 −2 0 10 0 ... 450 ft (17 0 m and 13 5 m) below this peak, respectively. The calculated and 20 Sgrignoli, op. cit., p. 17 . 234 RADIO-WAVE PROPAGATION Chicago, Ch 20 −20 19 18 17...

Ngày tải lên: 14/08/2014, 16:20

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