573 171 tier esgenfisnctmii, 48, 51-53 cigensequence, 341 esiergy of a time signal, 226 ensemble, 404 rnsemblc siieaii! 405 ergodic, 441 joint 422 ergodic random processes, 414 error power 353 estirnat#ionerror, 453 even function, 209 even srqucnce, 310 expected value, , 303, 405 second-order joint,: 42 I cxpect,ed values first-order, 407 secorid-ordcr, 1110 exponential func t,iori 52 cxponeiitial ordcr, 72 exponent,ial sequriice, 317, 319 unilateral, 304 exponential srqisences, 298 undamped coinplcx! 302 external part, 128 14.1,341 Fx transform, 301 322 F?: tjransforniirivrrsc, 301 fccedback, 39S filter auto-correlahri fiinct,ion, 444 rna,tched, 188 opt,irnill 453 Wicsier, 191, 452, 453 fiker ACF, 444 FIR-systeni 356 Fourier cocfficierits, 266 Fouriu series, 61, 261 Fourier spect,riiiii, 197 Fuiiriw transform 61, 196 197 200, 241, 322 convolution 217 differentation t hcorein, 224 discret,e 286 tfiscrete-t,inie, 301 duality 215 269 iiitjegratlsositlieoreiis, 224 inverse?,2 I3 inverse discrvtc-time! 30 lisrearity, 215 rnodiilat,ioa 221 rnultiI)lic:;tt,ion,219 of a sequence, 301, 322 pairs, 200 periodic: signals, 264 shift, 221 siiiiila,rity, 17 frcqucncy resonnnt 254 frequency parameter complcx 38 freqisriicy resolutsosi, 309 frequency response 241 333 smoot,liing, 396 frequency, cosiiplex, 46 freciuency-tlorii;l.in: 45,28.5 fun ctioii analyt,ic 69, 88 complex tliffcrent,iablc, 69 rveii, 209 holomorphic, 69 odd, 209 regu1a.i.~G9 Gauss impulse 234 Hilhcrt transform 372 Hurwitz deterinsnants, 3% polynornial 392 I-c:ircuit8,179 IIR-system, 356 snipedance, hipulse respoiise 160, 167 174, 350 351, :369