Page 309 - Anatomy of a Robot
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12_200256_Index  4/10/03  3:41 PM  Page 294
                             294 INDEX
                             buses, input/output (I/O),
                                                       hardware/software, 121
                               103–104
                                                                                 235, 239, 247
                                                      communications, 21–22, 102,
                                                                               encoding/decoding in, 229
                             bytes, 89–90             commercial off the shelf (COTS)  Eb/No curves in, 234–236,
                                                       221–274                 encryption and, 266–269
                             C                         10BT/100BT/1000BT       energy and power supplies
                                                        standards for, baseband,
                             cable networks, 271–272                             in, 175
                                                        232, 272               error control in (See also error
                             cabling, interference and,
                                                       Aloha type systems, 261   control), 238–257
                               142–143                 amplitude shift keying (ASK)
                             cache memory, 95–98                               error distribution in, 240
                                                        in, 233, 236           eye patterns and "open eye" in,
                             carbon fiber, 283         bandwidth allocation for, 228,  238–239, 239
                             carrier signals, 233       252–254, 258–259       forward error correction (FEC)
                             caution, in control systems
                                                       bandwidth limited,        in, 248
                               design, 57–58            254–256, 256
                             central control systems, 24  baseband transmission in,  Fourier transforms for
                                                                                 compression in, 265–266
                             central processing unit    228–232
                               (CPU), 88               bidirectional channels in, 241  frequency allocation/separation
                             centralization of energy code,  bit error rate (BER) in,  in, 262
                               161–162                  234–236, 235, 239      frequency division shared
                             channel tuning in, 246–247  broadcasting, 273–274   access systems in, 262
                             channels, 250, 251–252    cable networks in, 271–272  frequency shift keying (FSK)
                             characteristic differential  carrier signals in, 233  in, 234
                               equation, for control systems,  channel tuning in, 246–247  global positioning system
                               37–39                   channels in, 251–252      (GPS), 82
                             characterizing robot      checksums, block checksums  Huffman compression in, 266
                               performance and altering  in, 241–244           information signal in, 233
                               control system design, 41–48  closed system, 260  infrared, 107
                             charge level, batteries and, 165  code division multiple access  interleaver/deinterleaver in,
                             checklist in project       (CDMA) in, 246, 263–264  250, 252, 257
                               management, 16          code division shared access  Internet and, 82
                             checksums, 241–244         systems in, 262–264    Internet protocol (IP) in, 82
                              IP type, 243             compression in, 265–266  intersymbol interference (ISI)
                              polynomial, 243          concatenated codes in,    in, 230–231, 230, 231, 262
                              Reed-Solomon, 244–245     248–252, 249           jamming in, 228
                             clock time, and energy and  convolutional codes in,   load limits for, 260
                               power supplies, 171–173, 172  250, 252          local area network (LAN), 82,
                             closed loop control systems (See  cooperative user, 260  102, 105–108, 272
                               also control systems), 26–39,  data density in, 229  modems in, 271
                               26, 47–48, 48           defining communications role  modulation in, 232–238
                             closed system              and purpose, 221–223   modulator/demodulator in,
                               communications, 260     delays in, 259            250, 251–252
                             code division multiple access  demodulators for, 236–238  nonreturn to zero (NRZ) codes
                               (CDMA), 246, 263–264    direct current (DC) balance   in, 229
                             code division shared access  in, 229              open loop control system, 25
                               systems, 262–264        distortion in, 262      Open Systems Interconnection
                             coefficient of friction, in control  distributed control system, 23  (OSI) layered model for
                               systems, 41, 45         distribution of errors in, 240  networks in, 224–228
                             coefficient test, in FIR   downloading times and, 91  parity bits in, 244
                               filters, 216            duplicate or redundant data  phase shift keying (PSK)
                             column address select (CAS), 95  transmission in, 239, 240  in, 234
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