Digital Signal Processing: A Practical Approach (Electronic Systems Engineering)

779 Pages·1993·1.73 MB·English

by  Emmanuel C. Ifeachor

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the expanvatial Fourier suies privides » dogical fesifeation lor the DET:
Which does not ceyuirs enverage of the Aisecte Luurier sorts which Would
lunrecsstaily iacceate the lane oF the hook (ae the ammount of work forte
ssuferts, Le Uienssnn day alsa Reon reaeted te the deseripim and ine
mentation of the tansnrms In parciemar ie taps af wincosng has net hess
inetd in cis chapter bu is are sepwoprately dteuewel sa dees in Chaser
Ion specu anal,

In Chapter 3 Ube bani ot diteveletime signals aul stems are disse
Impertent aspev uf the zcanstoin, a ivtloable nol or repeesetting A
‘nalysny dace tine sagnule ara systems, are discus). Many apmtcaians
tae s-transonin ats hphlgated. for example is so in the desig. andes
onguncatin ofthe feeyeeney zapamse af cessete-dis signs aod systems, AS
in the resto the book. she canovply well applications of the Zranfomm
fate Uustra.03 wt fully works. extmpes

Gorveivinn aud consolation ve fuamental ad closely slate! lope in
DSP and ne cuyerel in dapth in Chapter 4, The aust gonsider an anveeoest
‘of ths contents oF Wis ces be essentil few DSL but atic 4 pacha
‘ary stanning of the egateats the realer may weil he adiced to lid 1 ls ot
hier Geta knowlege by progtessiog through the chapter in tages. BE
sontents might well he spread ver several yeare fen undoreradvte cours,

CChaplery 8,6 and 7 inlude Uetaled practical Uncursions of dig iter
sesign, te uf dae mose impotaat pies in DSP being atthe esi el anost DSP
‘stems Dial rlter cosgn i 4 vast copie seal those now ts ican fd this
somewhat overshelning. Chapter § provides s, oneal Hsmmwork tor titer
Hlsign. A simple bul peusral ep-hy-slep guide tor Aesigaing digital its fy

ochniqnes far designing #17 iGnite impale tespunse) files tr speci
Feedens rarowee ¢o Titer impfewemations are ivusyed in Chapiey 6, Several
filly orked sasumples as: given dbroughon: the ctupler ro consolidate the
inmpontant coacepts. A wxenplee iter design cxemple i inaludy stow Hoe
alP¥e sisges of tr dog wget

4K infinite inipulse cesponss} ler design ie diesuyed in detail in
‘Chapter 7, based on the simple step-by-step guide, The ciel oc yooatizaion
fn filer performance in als vations finns He discussed. Tu particular, ADC
faualogue-tortiptal} ge, coasion yuomiaation arteex md ther effec on
Feequensy tospemse anu stability, arithowin: round sven nat overflow ana
cedures (0 mining the elles of these econ sre discsse

‘Muliate peacesting techaiques allow data he prewesoel at mare thas,
fone sanping rate an five made pessible such aoe! apvations oe angle-Lit
ADCs snd DACs (digsloanaiogue somerirs). ane twersimpled digital
flteing. which ao exploited in a miner af mle pital ster, Ilan
tor europe te Lamiiareompaet dice player. Ta Chapter 8. the basic concent
OF muttiate provessing ate explained, ihustrai sith Tals nerked saumploe
snd the uesige of actual multirate nstems

3n Chapter 9. key aypsots ul adaprve illegs are dsserse4, based on che
EATS (esstameusqusres} cad HLS (recuisive lenueaguats algorthis Sich,
are ewe of the mose w daly used algarithng in adaptive signal pracoxing. Che
‘Weatineneis practical wih only the erseacsh theory snetuded inthe avn text

Tn Chapter 10, the nmportatrtopie af spectrum estvacicn and analysis
teva tn serif: al shady signa the Tguciey Menai is serie th
Ile amphi: being othe rational neaparamen ie appease, Readers whe
soe yearly Pate in qpseral analyse shoul sy hy Cpls Th
find 9 a Chapuce HF eee ph explanations and mies examples ae in
Chepres 2. Tun whi names the etonts of then caytes-wi be el pla
tor Iecome computa. in the ashes of gnats in the vequency aonain,
Hlowesst, if ie arth aoing That hile rhe chaprerinrtvece nenpaceanstic
rca im ep, the mare meena parantare msthads are expoased to ho
ame hale ianparians id the ne. Those msthadk age noe boon covered
‘eli aa the rele it b-elt the given relerencrs

Tite fet sc, ass shen ns DSP habe
snd Us el to he se ela of bs coca sgual puoesssies Boe
‘suconstul applica. of DSI using Iheve provesscre. iL ts necessity to pprE
‘Sie the undeviying concepts uf DSP oirdage vad sultare. Chapter Tite
Css te key Redes uitesiig generale ak! speclpuspars prota lor
Disb, he past of DSP alguilausew te horlsaie aad olla eesiteetsy
af these srucesors, aru the onebtecLarel requiremeals [ur ellicient exevuion
‘of DSP fractions, We have weed the Tes Instruments devices, IMS:2¢C IU,
TRISS20025 and UMS J2UC9). ae well ay olaer well kagsn processor, to lls
tine spose as, here wile

Ih Chaptor [2 e deere the Raedwure developmen enviroument sod
Ii iplarent anne nf ehe DSP algorithrs destined 1 previous chapears. "Ten
yw cnet carget natcleased am rhe. Texas Inaranienss TMSGGCHt and
TTMSSQ0C35 aveccsiors are deserited A cumber of applications of DSP are
desenved inthe foam of case sluies, The prvssatelion draws on min cr
‘opts docosve mn earlve shaper

How to use the book

‘A.usctul apprcich for unlengacuate ceaching wll be i aren vag materia i
Cropter [to pevide the tnertanding of fuapeatal opis suck as te
saunpling theorem and discrete-time signs and spstema. cul 10 esti Ce
tonetits and epplicitions a DSP. Them escete Irani aoukl fe in
Coedced, stating mith The DTP dnl PRT Chapt 23. and Fe e-tennstot
(Chapier 3}. Agee of Chapters 1 and A may be used 10 ilnerats the apie
tation of the DIT and FET. Afict a inteatusion tp eveclation paoessing
tsiag ¢ selection of matsrials from Chmpeer 4. docaled toncmcat uF digital
‘ter should be undaiaken,

In our experience oludentsleien more wen they ae give rest:
sigamencs to cary out, To this ond Wwe ould encourage sisal sss
meats, for example flter desiga. tbe snvene -topvoem. tbe DIT aad
FET, Taboratary warle®hould en be atime to demvanstnce and reinforce
fee

the techs taught. Its mportane that tenis acmaly pacticipats ae well
a attend lecture

ar postgraduate scudens the apy wall fe the sume: but the pace
‘ill bo mare brisk, and che mare specialist ups of mltcate processing and
sMapsive fiers wil asa Te inched

to obtain the program disk for this book

tae C-linguays progmims oad IMSS20CLU25 wsombly language prograns
dese inthis book ane svaleble oma dak dr he IM PC cor corapbes),
‘31/2 bagh deasny (1-44 Mbyte), The language programs are wallale
‘oth executable form und as source codes. AC compiler is required to run the
source sodes, but otto run che exceutahle ondes, The puograrna are wrcen i
Mondird ANS] C under Borland Turbo C version 2.0, The TMSS2IC2S coder
in the disk require the Texas Insrumene SWS (enftanze develapmensspcm)
package to run, The TMS®20° UN andes run ni the targer based desea 9
{Captor 12: they wll requis minor asaiticatioa trun nother sya

The cast per dik is £27.50 or R (inluding sales tax). THis price ala
includes illustrative examples ef how ro nse the C-langnags pengrans.

‘Te abrain te pengiam click, ploavs seal your woul tapelley wi
cheque draem ona UK nak, Bankers distr ar prot a elt Wank sheer te

Daal Signal Processing: A Practical Appriach
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Acknowledgements

‘We ave forunate have rorived many welulcomtaents smal aguestinns from
many of cur prota td part sudonte whith bave improve the fecha cal
ootenl nd larity af the book, Wo ar grated yal thor. bat especialy 10
Lilie Rideingtoa, Rebin Clark, Tan Scholes, Heanyois Amand, Nichols Gate,
atest Rune an! Andiow Panes

‘The authors youl Hk thank Mr Mike Frazer. anti ooemty tt
ical member af sll of Cie Uriverity af Plymeuch, and formerty a Chiet
Engineer mls Rauk Loshipa, Pipmorca. His considersble experience cau! es
able curameats Ive been sms useful. We sould also lke to Utonk sim for
teveloping and curstucting th TISS20Q:U0 tuggot turd funn cae nal a=
sign, and for developig te eneitonrnant in which many peograms were np
‘mented and tested, Puul Srulkaca 18 ty be thanked for doing ae good job
fin the TMSIUCZS larget ad, He selaped aed constructed the bardwsce
faethe sytem fom our initial design, with yrsibutions fom Mike Keasoe. We
Acknowledge the comments and wmeaance “in any other colleagues, espe
ally Mr Peter Va EL Vell [oe striving che mathomnsial formulae in Ape
dic 70 and 7C.

“The practical nature of tbe bak made i diffiutt to keep :0 deuulines,
Fach chapter took uch Kangra wre the see had imapined oe planod for.
‘We thank she axquiiion euior, Him Pits, for Nie pationce and encourage

Fong, the suchors are exes groefl casei amis for her cole
nee, patience and support thoughout Uns were le-roxs ening projet.

mumanact Teaskor
dais Jervis
‘Apri