Introduction to Satellite Communication 3rd Edition

See also
Multiple access
isolation, 117–18
Alternate routing, 374–75
isotropic radiator, 113–15
Amplitude and phase shift keying
Ku-band reflector, 113
(APSK), 171
microwave lens, 242
Amplitude modulation to phase
offset fed geometry, 301–2
modulation (AM/PM) distortion,
omnidirectional, 285–86
207
parabolic reflector microwave, 240
Analog bent-pipe repeaters, 208
passive designs, 244
Ancillary terrestrial component (ATC),
prime focus fed parabola, 300–301
26, 64, 103–4, 393
reflector, 243–51
objectives, 103–4
sidelobes, 116–17
principle, 103
Simulsat 7 multibeam, 96
AndeanSat, 60
splash plate, 301
Anhydrous hydrazine, 350
waveguide lens, 243
wire, 121
Anik satellites, 52
431

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432
Index
Apogee kick motor (AKM), 288
Beam forming, 213
Beam shaping, 254
Apogee motor firing (AMF), 342
thrust increment, 342–43
Beamwidth, antenna, 116–17
Bent-pipe transponder filtering, 204–5
transfer orbit, 343
Application-specific integrated circuits
Bipropellant
MMH, 349
(ASICs), 336
Arabsat, 58–59
technology, 277
Bit error rate (BER), 136, 160
ARCJET, 278
Ariane, 352–53
defined, 159
effect, 160–61
Asynchronous Series Interface (ASI), 311
Asynchronous Transfer Mode (ATM),
turbo product code (TPC), 161
Boost phase, launch mission, 339–41
12, 77, 154
cells, 216
Brasilsat, 59–60
Broadband global area network (BGAN),
defined, 75
Atlas, 353–54
100
Broadcast satellite service (BSS), 17, 34,
Atmospheric attenuation, 23
Attitude-control loop, 262–64
88
Business plans, 398
elements, 262
illustrated, 263
C
Attitude-control subsystem, 262–68
antenna pointing, 265–68
Cable head end TVRO configuration,
332–33
attitude-control loop, 262–64
sensors, 264–65
Cable television, 93–96
programming classes, 95
See also
Spacecraft bus subsystems
Automatic gain control (AGC), 235
satellite utilization, 95–96
Canada, 51–52
B
Carrier hopping, 326
Carriers, 23
Backbone communications, 373–74
Backhaul, 92
Carrier-to-noise ratio (C/N), 144–46
defined, 144
Backup satellites, 364–65
Backyard dishes, 97
measurement, 145
Cassegrain optics, 301
Bandwidth
dedicated services, 71–75
Category 5 UTP (CAT 5), 311
C-band, 31–35
defined, 71
digital baseband signal requirements,
benefits, 31
constraints, 31–32
153–55
efficient modulation (BEM), 171–72
repeaters, 46
sharing, 32–33
in multiple access, 181–83
Baseband equipment, 409–10
transponder, distortion characteristics,
184
Batteries
charge, 273
See also
Frequency bands
Center-fed parabolic reflectors, 246–49
design and configuration, 271–73
electrical power bus, 271–73
CEPT, 152
Channel group delay distortion, 207
electrostatic discharge (ESD), 273–74
Li-Ion, 272–73
Circuit-switched services, 75–77
Circular polarization, 122–23
nickel-cadmium cells, 272
See also
Spacecraft bus subsystem
advantage, 123

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Index
433
defined, 122
D
left (LCP), 122, 123
D/A converters, 2, 214
right (RCP), 122, 123
Data communications, 85–88
See also
Polarization
Decibels (dBs), 109–11
Clarke Orbit, 39
C/N in, 145
Code division multiple access (CDMA),
power balance in, 147
28, 30, 105, 179–81
Defense Satellite Communications System
block diagram, 180
(DSCS), 66–67
defined, 179
Defined market areas (DMAs), 89
receivers, 181
Delay equalizers, 226
signals, 179
Delivery in orbit (DIO), 363
transponder resource sharing, 182
Delivery on the ground (DOG), 363
two-way communication, 181
Delta rocket family, 354