Web Design
Index

A
A/D conversion 25, 286, 350 A/D converter 281, 282, 286, 320, 347, 349, 361 A/D encoder 347 Absolute value 160, 161, 223, 239 AC voltage 24 Acoustic pattern 105 Acoustic recognition 103 Acoustic system 103 Acoustics 107 Addition 195, 218 ADSL (Asymmetric Digital Subscriber Line) 425 Algorithm 25, 26, 28 AM generation 236 AM signal 235, 236, 238, 239 AM tuner 252, 253 Amount of redundancy 401 Amplification 113, 184, 194 Amplitude modulation 232, 233, 276, 325 Amplitude Shift Keying (2-ASK) 406 Amplitude spectrum 119, 150, 158, 160, 172, 196, 229, 293, 297, 327, 477 AM-signal 234 Analog bandpass 319 Analog circuit 25, 28 Analog circuit technology 279 Analog components 24, 320 Analog computer 24, 25 Analog filter 215, 217, 304, 317, 318, 320 Analog filter technology 214 Analog function generator 158 Analog modulation 243 Analog multiplier 240 Analog PLL 266 Analog pulse modulation 286, 287 Analog signal 25, 279, 280, 307 Analog system 24 Analog technology 25, 28, 196, 280 Analog transmission process 243 Analog VCOs 254 Angular velocity 270 Antialiasing filter 304, 314 Antinodes 108, 109 APFSK (amplitude-phase-frequency- ASCII 347 ASCII encoding 347, 348 ASCll coding 347 ASK Amplitude Shift Keying 406 Asymmetric digital subscriber line 345 Asymmetric Digital Subscriber Line (ADSL) 434 Asynchronic transfer mode 345 ATM technology 345 Attenuation 184 Audibility threshold 380 Audio signal 354 Auditory sensation area 379, 380 Autocorrelation function 505, 506 Autokorrelationsfunktion 505 Automatic control engineering 167 Average value 180

B
Backpropagation 449, 450 Bandpass 321 Bandpass filter 177, 186, 252 Bandpass-filter 156 Bandwidth 102, 174, 178, 182, 246, 259, 261, 294, 312, 328, 332, 334, 336, 346 Bandwidth limitation 304 Bar graph 31 Base frequency 224 Baseband 426 Basic frequency 147 Beat 184, 221 Beat effect 185 Beat frequency 185 BESSEL filter 214, 215, 403, 404 BESSEL functions 256 Binary codes 389 Binary pattern 174 Biophysics 107 Bit error probability 387 Bit pattern 403 Block diagram 26, 28, 62, 328, 331 Block format 31 Block length 117, 291, 294, 295, 309, 312, 316, 322, 330, 333 Block sequence 31 Blocking band region 165 Blocking state region 216 Burda academy 15 Burst pulse 160, 184 Burst response 188 Burst signal 175 BUTTERWORTH filter 214, 215, 216, 403, 404

C
Capacitance C 488 Capacitor 24, 317, 319 Capacity 320 Carrier 231, 241, 252 Carrier frequency 175, 240, 250, 317 Carrier of information 99 Cartesian coordinates 167 Cartesian coordinates 480 Cartesian representation 481 cascade representation 87 Cavity resonator 109, 112, 113 CDMA (Coded Division Multiple Access) 437 Ceramic filters 317 Channel capacity 400, 401, 419, 420 Channel encoding 387, 401 Chaos theory 218 Characteristic frequencies 103 CHEBYCHEFF filter 161, 162, 214, 215, 403 Classical modulation 231, 406 Claude Shannon 412, 422 Coaxial cables 231 Cochlea 114 Code division multiple access CDMA 422 Coded OFDM (COFDM) 432 Code-multiplexing 422 Coding 281, 282, 283 Coding of digital data 347 COFDM (Coded Orthogonal Frequency Division Multiplex) 432 Comb filter 196, 327 Communicability 16 Communication 14, 387 Communications engineering 104 Communications system 18, 25, 26 Communications technology 1, 22, 24, 26, 193 Comparator 281 Comparison of PM and FM 271 Complementary signals 136 Complex calculation 478 Complex FFT 141, 321 Complex numbers 144, 146, 477 Complex rotating vectors 485 Complex systems 191 Compression 345, 347 Computational precision 25 Computer technology 387 Computer-based methods 159 Computer-based signal processing 288 Computer-based technologies 15 Conducting state region 215, 216, 322, 334 Conductivity 203 Conjugated complex vectors 484 Consonants 102, 105, 111 Continuous signals 500 Continuous spectrum 55, 56 Continuous Wavelet Transformation CWT 94, 378 Continuous wavelet transformation CWT 370 Control technology 25 Conversion 222, 228 Converters 24 Convolution 127, 222, 223, 228, 230, 329, 330, 331, 333, 334, 336, 339, 365, 501, 503 Convolution integral 501 Convolutional encoder 393, 394, 399 Convolutional encoding 392, 393 Correlation 116, 124, 503 Correlation coefficient 504 Correlation factor 118, 124 Cross correlation theorem 508 Crosscorrelation 505 Cutoff frequency 148, 178, 339, 403, 404 Cutout module 322

D
D/A conversion 25, 421 D/A converter 256, 283, 284, 285, 286, 307, 347 DAB (Digital Audio Broadcasting) 425 DAB-frame 433 Damping 194 DASYLab 3, 9, 27, 28, 30, 31, 32, 33, Index Page 515 115, 122, 138, 167, 202, 229, 242, 250, 253, 254, 268, 279, 281, 288, 289, 291, 308, 313, 316, 317, 328, 360, 408 Data analysis 26, 27 Data compression 115, 347 Data reduction 349, 383 Decimation filter 361, 362 Decoding 347, 351, 369 Decompression 347 Deemphasis 277 Degree of modulation 235, 236, 237 Delay 195, 196, 329, 330 Delta decoding 358 Delta demodulation 358 Delta encoder 357 Delta encoding 354, 356 Delta modulation 354, 356 Delta modulator 359 Demodulation 24, 232, 238, 239, 240, 242, 244, 263, 264, 265, 276, 277 Demultiplexer 416 Demultiplexing 369, 421 Derivative 199, 206 Difference between PM and FM 277 Difference frequency 246 Differentiability 211 Differential calculus 198 Differentiated signal 197 Differentiation 170, 171, 197, 198, 199, 201, 203, 205, 206, 211, 212, 213, 218, 270, 317, 318, 320, 486 Differentiator 204 Differenziation 486 Digital Audio Broadcasting 280, 345 Digital Audio Broadcasting (DAB) 432 Digital bandpass filter 338 Digital filter 217, 317, 334 Digital filtering 325 Digital filters 334 Digital FOURIER Transformation 322 Digital instrument 31 Digital modulation 231 Digital non-periodicity 297 Digital period length 298, 315 Digital processing 279, 280 Digital Quadrature Amplitude Modulati-on (QAM) 415 Digital Signal Processing 173 Digital signal processing 135, 137, 150, 158, 196, 280, 288, 293, 304, 308, 345 Digital signal processor 26 Digital signals 228, 288, 290 Digital technology 279 Digital Transmission 403 Digital transmission 174 Digital transmission technology 345, 387 Digital VCOs 254 Digital Video Broadcasting 280, 345 Digitalisation 279 Diode 24 Direct Sequence Spread Spectrum 438, 439 Direct sequence spread spectrum 437 Discrete FOURIER transformation DFT 429 Discrete in time and value 225 Discrete line spectra 300 Discrete Multitone 422 Discrete Multitone (DMT) 422 Discrete signal states 411 Discrete states 409 Discrete Wavelet Transformation DWT 378 Dispersion 172, 173, 174 Distance 388 Distortion 225 Distortion factor 151 Double sideband AM 240, 241, 242, 246 Double the frequency 220 Downsampling 366, 367, 369 δ-pulse 52, 53, 54, 137, 159, 160, 161, 162, 163, 164, 171, 172, 177, 178, 182, 184, 187, 302, 309

E
Eardrum 114 ECG signal pattern 376 Echolocation measurements 27 Education 1 Educational system 4 Efficiency of convolutional codes 400 Electrical engineering 197 Electrical field 25 Electromagnetic energy 175 Electromagnetic field 487 Electromagnetic oscillations 2 Electromagnetism 218
Electronic document 4 Elimination of noise 378 Encoder 403 Encoding 347, 350, 369, 384 Entropy encoder 349 Entropy encoding 387 Envelope 201, 238, 239 Envisioning knowledge 15 Error protection 401 Error protection encoding 345, 347, 387 Error-correction 392 Error-protection coding 437 EULER´s relation 495 EULER’s relation 483 EULERian relation 482 Exponential distribution 180 exponential form 494 Exponential function 420 Extrapolation 449 Eye diagram 403, 414, 417

F
Fast FOURIER transformation 291 FFT filter 320, 321, 322, 323, 364, 404, 406 FFT processing 322 Field Programmable Gate Arrays 279 Filter coefficients 317, 328, 333, 334, 335, 339 Filter curve 339 Filter development 332, 336 Filter development system 339 Filter edge 263, 265 Filter technology 214 Filters 213 Filters with mechanical resonators 317 Filterung 448 FIR filter 330, 371 FIR filter coefficients 367 Flight simulator 15 FM bandwidth 262 FM modulator 254 FM signal 254, 257, 261 FM spectrum 256, 259, 260, 262 forced oscillation 489 Formants 113 Formula interpreter 150, 177, 230 FOURIER analyser 103, 115 FOURIER analysis 116, 138, 139 FOURIER- coefficients 496 FOURIER- coefficients 494 FOURIER- integral 486 FOURIER Principle 22, 29, 33, 108, 138, 151, 193, 256, 312 FOURIER- principle 499 FOURIER- series 493, 495, 496, 497 FOURIER synthesis 62, 140, 250, 322 FOURIER transform 18, 156, 160 FOURIER transformation 85, 93, 129, 130, 131, 132, 136, 138, 141, 193, 217, 330 FOURIER- transformation 496, 498, 505 FOURIER-Analyse 493 FOURIER-Reihe 497 FOURIER-synthesis 429 Fractal objects 191 Fractal structures 190 Freely programmable chips 12 Freely programmable ICs. 13 Free-running oscillation 109 Frequency analysis 103 Frequency band 24 Frequency band limited signals 305 Frequency bandwidth 304 Frequency dependence 489 frequency dependency 490 Frequency domain 28, 115, 131, 160, 174, 207, 213, 217, 220, 235, 247, 290 Frequency gaps 175 Frequency Hopping 438, 440 Frequency modulation 203, 232, 254, 277 Frequency modulator 255 Frequency multiplex 247, 249, 250, 276 Frequency pattern 103 Frequency range 165, 323 Frequency resolution 88, 314 Frequency response 151, 152, 154, 156, 157, 158, 170, 177, 379 Frequency selection 320 Frequency Shift Keying 2-FSK 408 Frequency spectrum 99 Frequency swing 257, 258, 260, 265 Frequency uncertainty 293 Frequency vector 478 Frequency vector pair 145, 148, 149, 150 Frequency vectors 144, 145, 164 Frequency window 103
Index Page 517 Frequency-dependent behaviour 151, 153 Frequency-dependent reaction 156 Frequency-division multiplex 419 Frequency-Time landscape 89 Frequency-time landscape 27, 101, 103, 105, 106, 125, 316 frequency-time landscape 10, 102 Frequenzbereich 458 Frequenzkenngrößen 453 Function generator 152, 153, 154, 281 Fuzzy logic 27

G
Gabor 22, 86 GAUSSian function 169, 170 GAUSSian noise 419 GAUSSian oscillation pulse 160, 174, 175, 188 GAUSSian plane 129, 138, 144, 146, 147, 148, 150, 321, 410, 478 GAUSSian pulse 159, 173, 174, 175, 188 GAUSSian window 88, 101, 228, 312 GAUSSsian plane 165, 494 GAUSSsian window 87 Generic Array Logic 279 Genetics 14 Glass fibre 231 Gliding mean value 210 Global System for Mobile Communica-tions (GSM) 434 Glottis 112 Gradient 198, 200, 201, 203, 213 Graphic patterns 106 Graphic programming 3, 19 Group velocity 175, 176 GSM-procedure 435

H
H block diagram 20, 28, 29 Haar function 378 Haar wavelets 378 Hammer 114 Hamming 389, 392 Hamming code 392 Hamming codes 390 Hamming distance 389, 390, 392 Hamming limit 389 Hamming sphere 389 Hamming window 337 Hard and soft decision 398, 399 Hardware 12, 317 harmonic form 493 Hartley 22 HDSL (High Speed Digital Subscriber Line) 425 Hearing organs 114 HEAVISIDE 511 HEAVISIDE calculus 511 HiFi technology 225 Highpass filter 214, 230 Huffman encoding 350, 352 Huffmann encoding 349 Human brain 103 Human speech-tract 112 Human voice 320

I
Ideal filtering 405 IDFT (Inverted Discrete FOURIER trans-formation) 428 IF domain 252 IF filter 252, 253 IIR
filter 330 Immunity to interference 272 Impedance 319 Impedance converter 319 Impulse response 499 Inductance 24 Inductance L 488 Inductivity 317, 320 Information 23, 24, 180 Information carrier 2 Information technology 16, 33, 183, 213 Information theory 18, 23, 180, 275, 389, 392, 412 Informative pattern 24 Instantaneous frequency 155, 156, 232, 233 Inteference effect 25 Integral calculus 483 Integration 204, 205, 207, 208, 209, 210, 211, 212, 213, 218, 317, 318, 320, 486 Interactive learning 14 Interference 109, 133, 184, 401
Intermediate frequency band 252 Inverse Discrete FOURIER transformati-on IDFT 429 Inverse FOURIER transformation 138, 321, 495 Inverse LAPLACE- transformation 510 Irrelevance reduction 350 irrelevance reduction 379 ISDN channel 345 ISI Intersymbol Interference 403 I-signal 415, 417

K
Keying of discrete states 406 Korrelation 503 Kreuzkorrelationsfunktion 505 Küpfmüller 22

LLack of ambiguity 16 Lack of redundancy 16 Language 99, 103 Language generation 104 Language research 106 LAPLACE -Transformation 508 LAPLACE- transformation 512 Laplace transformation 169, 170 Laplace transformation. 1 Larynx 112 Law of capacity 197, 318 Law of induction 197, 318 Layout Presentation 10 Line spectrum 110, 135 linear combination 484 Linear differential equations 218 Linear distortion 215, 229 linear electro-technical circuits 488 Linear equations 190 Linear mathematical operation 218 Linear or non-linear 189 Linear phase response 215 Linear process 171 Linear processes 193, 330, 361 Linear system 190 Linearity 190, 193, 201 LISSAJOUS figure 32 Local maximum 197, 198 Local minimum 197, 198 Locus curve 149, 164 Logarithmic function 420 Logarithmic measurement 379 Logarithmic scaling 95 Long-lasting signals 312 Loss of information 313 Lossy compression 349 lower sideband 134, 235, 237, 244 Lowpass filter 210, 214, 230 Lowpass filtering 307 LZW encoding 351, 353

M
Magnetic field 24 Malicious functions 211 Mapper 415, 416 Masking 381 Masking effect 379 Masking threshold 382 Mathematical model 17, 107, 218 Mathematics 13, 15, 16, 18, 32, 190, 193, 218 Maximum likelihood method. 390 MDCT (modified discrete cosine trans-formation) 383 Mean value 208, 209, 210 Measurement data 26, 31 Measurement of areas 209 Measurement sequence 31 Measurement technology 173 Mechanical oscillation system 160 Mechanical oscillator 107 Mechanical resonance circuits 249 Medicine 14 Membrane 110 Membrane oscillation 111 Memory 28 Mexican hat 92 Microcontroller 28 Microelectronics 1, 11, 12, 28, 193, 286, 345 Microphone 320 Microprocessor system 25 Microsoft Windows 30 Mid-frequency 156, 259, 260, 268 MIKUSINSKI 512 Mirror-image 247 Mirror-image symmetry 246Index Page 519 Mirroring 191 Mixing 252, 277 Mobile telephony 345 Modern test signals 158 Modulation 24, 174, 231, 232, 242 Modulation degree 238 Modulation process 232, 286 Molecular biology 14 momentary CWT 94, 95 MPEG (moving pictures expert group) 381 Multi-function cards 152 Multimedia 14 Multimedia applications 346 Multiple Access 419 Multiple interference 420 Multiplexer 28 Multiplexing 369 Multiplication 213, 219, 221, 222, 233, 236, 240, 244, 246 Multiplication by a constant 194, 201, 218, 329, 330 Multiplication of two signals 219

N
National Instruments 4 Natural frequency 107, 109, 115, 184, 186, 188, 254 Natural numbers 478 Natural oscillations 110 Natural sciences 104, 107 Near-periodic segment 101 Near-periodic signals 150 Negative frequencies 127, 136, 298 Negative frequency domain 245 Negatives amplitudes 136 Network diagram 393 Neuro-fuzzy 27 Neuron 114 Neuronal networks 27 Neuronale Netze 443, 466 Neuronales Netz 458 NMR-tomography 280 Nodes 108, 109 Noise 24, 87, 115, 160, 178, 180, 181 Noise response 180 Noise shaping 361, 362 Non-linear behaviour 225, 229 Non-linear distortion 192, 229 Non-linear equations 190, 218 Non-linear physics 190 Non-linear processes 191, 218 Non-linear signal processes 135 Non-linearity 24, 190, 193 Non-periodic oscillations 56 Non-periodic signals 55, 56 Non-synchronicity 309, 310 Normierungswerte 456 NRZ-Signal No return to zero 406 Number string 299 Number systems 285 Nyquist frequency 406

O
OFDM (Orthogonal Frequency Division Multiplex) 427 One-off delta-pulse 149 One-off signals 56 Operational amplifier 317, 319, 320 Operator calculus 511 Operatorenrechnung 511 Optical wave guide 231 Optimal pulse 174 Optimisation of system analysis 171 Orthogonal Frequency division Multiplex (OFDM) 427 Orthogonal function system 427 Orthogonal structure 378 Orthogonality 427 Ortskurve 491 Oscillation 107 Oscillation modes 110, 111 Oscillator 109 oscillatory circuit 489 Oscilloscope 24, 30, 151, 152, 154, 158 Overlapping of the frequency bands 303, 304 Oversampling 361

P
PAM (Pulse amplitude modulation) 286 Parallel output 283 PARSEVALs Theorem 507 Pass band region 165 Pattern recognition 114, 116, 123 PCM (pulse code modulation). 354 PCM 120 421 PDM signal 286 Period length 170, 291 Periodic δ-pulse sequence 329 Periodic oscillations 56 Periodic sequence 223, 225 Periodic signal 55 Periodic signals 147, 170, 297, 493 Periodic spectra 135, 137, 150, 303 Periodic spectrum 228, 332 Periodic spectrum of digital signals 300, 301 PFM (Pulse frequency modulation) 286 Phase detector 267, 277 Phase difference 153 Phase linearity 322 Phase locked loop PLL 264 Phase modulation 232, 254, 270 Phase Shift Keying (2-PSK) 406 Phase Shift Keying 2-PSK 408 Phase spectrum 133, 150, 161, 166, 173, 298 Phase velocity 175, 176 Physical effects 249 Physical medium 403 Physical phenomena 478 Physics 16, 18, 22, 23, 25, 313, 384 Physics of oscillation 107 Physics of waves 104, 107 Piezo electric effect 249 PLL (Phase Locked Loop) 407 Positive frequency domain 245 Power spectrum 18, 119, 125 PPM (pulse phase modulation) 286 Practice 14 Precision 16 Predictability 16 Preemphasis 277 Pre-group formation 250 Pregroup formation 247 Probability 18 Projection 191 Propagation speed 110, 173 Pseudo noise (pn)-sequences 437 Pseudo random coding 422 PSK Phase Shift Keying 406 Psycho-acoustic effects 361 Pulse amplitude modulation PAM 286 Pulse duration modulation 282, 286 Pulse duty factor 130 Pulse form 403 Pulse frequency modulation PFM 286 Pulse length modulation 282, 356 Pulse modulation 286 Pulse phase modulation PPM 286 Pulse response 160, 161, 163, 165, 170, 182, 215, 216, 321, 324, 326, 327, 328, 329, 334, 338, 340, 365

Q
QAM-signal 415 Q-signal 415, 417 Quadrature mirror filter 364, 367, 368 Quadrature phase shift keying 407 Quadrature Phase Shift Keying (QPSK) 412, 413 Quantisation error 361 Quantisation noise 380 Quantization 225, 227, 228, 230, 281, 282, 283, 288, 350, 421 Quantization noise 225, 227, 382 Quantization process 226 Quantization steps 228 Quantized signal 225 Quantum physics 218 Quantums 2 Quartz-crystal filters 217, 249, 317 Quasi-periodic signals 103, 110, 111 Quasi-periodic spectra 150

R
Radio receiver 24 Radio technology 233 Radioactive decay 180 Random bit pattern 403 Real and an imaginary part 144 Real and imaginary components 150 real signals 499 Real time processing 24, 339 Receiver 2, 232, 264 Rectangular filters 214 Rectangular function 136 Rectangular membrane 110, 111 Rectangular pulse 130, 173, 215 Rectangular window 311Index Page 521 Rectification 223, 239, 240 Rectifier 24 Redundancy 393 Reference spectra 116, 117, 118 Resistance 24, 317 Resolution 290, 370 Resonance 113, 318 Resonance filter 319, 320 Resonance frequency 184, 188, 254, 319 Resonant cavity 109 Resonator 109 RIEMANN 479 Ripple content 334 Ripple effect 311, 324, 327 RLE encoding 350 Rules for the calculation 488

S
S block diagram 28, 29 Sample & Hold 281, 286 Sample frequency 31 Sampled signal 294 Sampling 221, 228, 230, 281, 282, 350 Sampling frequency 281, 282, 291, 294, 297, 304, 307, 308, 309, 322, 332, 333, 334, 336, 361 Sampling Principle 302, 306, 307, 312, 322, 325, 332, 339 Sampling rate 117, 298, 309, 312, 314, 334, 339 Sampling theorem 307 Sawtooth 224 Sawtooth function 135 Sawtooth oscillation 147 Sawtooth signal 294 Scaling 92 Schroedinger equation 16 Science 15 Screencam video 354, 355 Sensors 24 Sensory hairs 114 Serial output 283 Serial parallel conversion 416 Serial-parallel conversion 421 SHANNON 500 Shannon 18, 22, 389 Shift register 283 Short Time FFT 85, 86 Si-function 129, 135, 136, 160, 176, 177, 305, 321, 324, 325, 328, 329, 330, 333, 334, 337, 340, 365, 367, 377, 405, 406 Sigma-delta coding 359 Sigma-delta converter 349 Sigma-delta modulator 359, 360, 361 Signal analysis 91, 105 Signal compression 91 Signal demodulation 239 Signal distortion 311, 312 Signal frequency 221 Signal length 291, 293 Signal operation 25 Signal pattern 180 Signal processing 25, 213 Signal space 409, 410, 411, 414 Signal technology 14, 24 Signal transmission 91 Signal windowing 311, 312 Simplification 16 Simulation 15, 282, 283, 284 Single sideband AM 243 Single sideband modulation 241, 243, 245, 249, 276 Sinusoidal carrier 231, 236, 240, 244, 406 Sinusoidal oscillation 192 Sinusoidal waves 109 Si-oscillation pulse 159, 176, 177, 178 Si-shaped pulse 327 Si-shaped pulse response 333 Sliding averaging 92 Sliding median value 93 Software 12, 317 Sonogram 10, 13, 89, 94, 106, 125 Sonography 13 Sound card 280, 314 Sounds 107 Source encoding 345, 354, 387 Space 190 Spectral analysis 146 Spectral representation 147 Spectrum analyzer 151 Spectrum of digital signals 298, 300 Speech 107 Speech Recognition 503 Speed of change 198 Speed of human speech 103 Speed of information 103 Speed of light 33, 175 Spool 24 Spracherkennung 461 Spread Spectrum 437, 440 Standing sinusoidal wave 108 Standing waves 109, 110 State diagram 393, 394 Stationary state 182 Statistics 18, 180 Step function 159, 167, 168, 169, 171, 182, 188, 500 Step response 171 Stirrup 114 Stochastic noise 178 Storage space 346 String of an instrument 108 Subband coding 365 Superposition 327 Surface wave filters 317 Sweep 153, 157 Sweep measurement 157 Sweep process 155 Sweep range 155 Sweep response 156 Sweep signal 114, 153, 155, 158, 160, 177, 318 Sweep speed 155 Symmetrical FOURIER transformation 142 Symmetrical frequency spectrum 131 Symmetrical spectrum 130, 134, 135, 139, 143, 150, 246, 247 Symmetry 132, 215, 223 Symmetry balance 136 Symmetry Principle 22, 29, 127, 129, 131, 137, 138, 140, 150, 223, 235, 246, 275, 300, 322 Symmetry principle 498 Synchronisation 264 Synchronization 406 System analysis 114, 151, 189 System development 9 System synthesis 189

T
Telecommunications 231 Telemetric system 202 Telephone channels 247 Temperature dependence 24 Test signal 170, 181 Theory 14 Theory of error-correction encoding 387 Theory of signals - processes - systems 18 Theory of signals, processes and systems 12, 17, 29, 218 Threshold of audibility 379, 381 Time and value continuous 288, 293 Time and value discrete 288 Time delay 195 Time- division multiplex 419 Time domain 100, 174, 290 Time interval 293 Time landscape 87 Time-continuous signal 282 Time-dependent reaction 151 Time-division multiple access (TDMA) 420 Time-division multiplex 420, 421 time-frequency-landscape 88 Timer 28 Tolerance 24 Tones 107 Tracking filter 214 Trainingsmaterial 465 Transfer function 152, 160, 161, 164, 165, 170, 176, 182, 203, 204, 216, 217, 314 Transient 182 Transient response error 155 Transient time 182 Transients 175, 182, 188 Transistor 24, 193 Transit time measurement 174 Transition 216 Transition phase 99, 101, 182 Translation 92 Transmission bandwidth 275 Transmission channel 420 Transmission energy 407 Transmission errors 387, 401 Transmission path 231, 243, 349 Transmission rate 346, 422 Transmission technology 173, 214, 272, 346 Transmitter 2, 232, 264 Transmitting 369 Trellis diagram 393, 394, 395 Trigonometric form 493Index Page 523

U
Uncertainty 85, 314, 401 uncertainty 85 Uncertainty Principle 22, 29, 65, 88, 138, 156, 232, 233, 293, 321, 322, 328, 403, 406 Upper sideband 134, 235, 237, 242 Upsampling 369

V
VCO 255, 256, 267, 268 Vector file 335 Verifiability 16 VHF range 262 Vibrating system 109 Video webphoning 280 Virtual system 14, 26, 28 Visualisation 15 Visualisierung 464 Viterbi decoder 400 Viterbi decoding 395, 396, 397 Vocal chords 112 Voice recognition 105, 115, 118, 119 Voice recognition system 107 Voltage Controlled Oscillator VCO 153, 202 Voltage Frequency Converter VCO 229 Vowels 100, 105, 111, 113

W
Waterfall analysis 102 Waterfall representation 101, 105 Waterfall-analysis 99 Wavelength 108, 109 Wavelet Transformation 91 Wavelet transformation 93, 378 Wavelets 85, 91 Waves 2 WIENER 499, 500 WIENER-KHINTSHINE theorem 18, 119, 506 Window length 314 Windowing 228 Wire communications 231 Wireless transmission 231

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