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ߵԺ(sh)̖̎½̌W(xu)ĸĸՓ

rg2021-06-18 19:21:51 Փ ҪͶ

ߵԺУ(sh)̖̎½̌W(xu)ĸĸՓ

(sh)̖̎ϢI(y)ҪČI(y)A(ch)nnj̖Ԕ(sh)ַʽʾ̎Փͼg(sh)΄(w)ʹW(xu)@Ô(sh)̖̎ĻA(ch)Փ㷨DSPܛӲ_l(f)ĻB(yng)W(xu)}ͽQ}

ߵԺ(sh)̖̎½̌W(xu)ĸĸՓ

(sh)̖̎һڴĵһW(xu)ڻڶW(xu)_nn̖cϵy(tng)W(xu)Bm(x)̖cϵy(tng)ĕrl򼰏(f)lMһպ˽┵(sh)̖cϵy(tng)ķ؄eǔ(sh)֞VO(sh)ӋԼMATLABеČF(xin)̎ڽ̌W(xu)^Ҫnϵ֪R\؂ڽoW(xu)ͬř߽W(xu)Ч̎Ҫץc֪RY(ji)(gu)ӴҪͬČW(xu)Ҫʩ̡ᘌ@Tn̵đ(yng)(chung)`ԵcԼ(sh)̖̎wٰl(f)չҪ̌W(xu)Vă(ni)M޸ĺڲӓuՓԼO(sh)Ӌǰ£(yu)Փ֪RY(ji)(gu)ӏӖ(xn)؄eT电(sh)֞VO(sh)ӋȾCӖ(xn)

⣬öýw̌W(xu)ֶκУ@W(wng)j(lu)(sh)ֻƽ_ĽO(sh)̌W(xu)ṩµĻĶʹný̌W(xu)(ni)ݸSnϢĂfnrsr£ߌW(xu)^eOԣĶʹ̌W(xu)|(zh)ͽ̌W(xu)ЧʵwɏŽׂMиM

һŇW(xu)ֶνY(ji)ʹ

1.(sh)̖̎һT`ԺՓԶ܏ČI(y)nڽ̌W(xu)^УߌW(xu)W(xu)(x)ķeOȡՓ̌W(xu)͌򞌍Ӗ(xn)̌W(xu)Y(ji)ϵĽ̌W(xu)ʹW(xu)W(xu)y(tng)Փ̌W(xu)ԹݔʽҪʽMн̌W(xu)sW(xu)(x)MώnDzv⣬@ʹW(xu)ķeOԵòְl(f)]ְl(f)]W(xu)^܄(yng)Æl(f)ʽ̌W(xu)ʽώvֻռnÕrg40%W(xu)ώĻӣ}c(x)}Ľռ30%nϬF(xin)cռ30%ͨ^ԭ֪Rv(x)}ĽԼӖ(xn)ʹW(xu)ջՓ֪RĻA(ch)W(xu)ͽQ}ķͬrҲ{(dio)ͬW(xu)ӅcR׌W(xu)HܵԼČW(xu)(x)ɹl(f)]̌W(xu)L(yu)

2._չڰW(wng)j(lu)YԴͶýwňW(xu)Y(ji)ϵĶʽnʽ(sh)̖̎һЩͻY(ji)ՓDFT|(zh)F(xin)FT㷨ԭҪúڰMƌ(do)C׌W(xu)һώ˼·fһЩҪDʾeʾԼ֪Rcѭh(hun)λѭh(hun)eͨ^ýw•DҕlӮȶNʽӵĽ̌W(xu)ʽMлӽ̌W(xu)n(x)}P(gun)֪RĽBԼnÃ(ni)ݵĔUչ֣tУ@W(wng)j(lu)̌W(xu)ƽ_(sh)̖̎n̵ςP(gun)nYԴɺӑՓg

3.(sh)̖̎MatlabZԼDSPg(sh)ЙCؽY(ji)ʹͬW(xu)ڌW(xu)(x)P(gun)̖̎Փ֪Rͨ^㷨ZMܛDSPӲƽ_ϵԌF(xin)@W(xu)ڌW(xu)(x)^܌W(xu)֪Rڕ؞ͨA(ch)nI(y)A(ch)n͌I(y)nЙCP(gun)“(lin)ʹW(xu)[ÓW(xu)n̪Եe`^Ķ߽̌W(xu)|(zh)

Փ㷨č`oܽY(ji)

1.̌W(xu)B(yng)W(xu)Փ“(lin)ϵHܵҪֶΣB(yng)c͘I(y)Y(ji)ϵm˲ŲȱٵҪnõՓ̌W(xu)(ni)ݵČW(xu)(x)ҪW(xu)W(xu)ͱMЌW(xu)(x)Ӗ(xn)nЌW(xu)֪RõHO(sh)Ӌ͹ĿԹ̰鱳磺FFT̖lVw늈D̖•̎(sh)̖̎pl̖ϵy(tng)еđ(yng)õְl(f)]W(xu)^܄ԡӖ(xn)ɼW(xu)W(xu)n֪RԭͬrҲB(yng)ˌW(xu)}߾O(sh)Ӌ{(dio)ԇĻܣW(xu)Ą

2.ӏnO(sh)ӋД(sh)̖̎cDSPg(sh)ľoܽY(ji)ϡW(xu)`\W(xu)Ĕ(sh)̖n֪Rͨ^һ^СĔ(sh)̖̎ȥ(yng)ϵy(tng)O(sh)Ӌc_l(f)Z̖ĞVZ̖lVϵy(tng)CnO(sh)Ӌβ•AΣ̎F(xin)zW(xu)O(sh)ӋӲܛ{(dio)ԇY(ji)(j)W(xu)nO(sh)Ӌ΄(w)ruּ(x)t(j)ƽ^urW(xu)ɿW(xu)ͨ^ij̰O(sh)Ӌ{(dio)ԇ׫O(sh)Ӌ̖̎㷨O(sh)ӋDSPܛӲO(sh)Ӌ^W(xu)MatlabDSP_l(f)ľIJ򾎌c{(dio)ԇW(xu)M̖̎Ĺ̾CӖ(xn)Ӗ(xn)W(xu)ľCO(sh)ӋO(sh)Ӌ{(dio)ԇͮa(chn)ƷO(sh)ӋĄ(chung)B(yng)W(xu)\W(xu)Փ֪RؽQH}W(xu)l(f)](chung)˼SQH}ṩˏV韵O(sh)Ӌ_

3.B(yng)W(xu)(chung)Œ`MлDSP̖̎̎ϵy(tng)ܛӲO(sh)ӋӖ(xn)cȫW(xu)O(sh)ӋِY(ji)B(yng)W(xu)(chung)¾񼰹O(sh)Ӌ`nɽ̎vW(xu)nԌW(xu)ِ(zhn)}ĿՓČ}Ŀyԇcuȭh(hun)(ji)M

F(xin)g(sh)đ(yng)

1.׌W(xu)ͨ^MľW(wng)j(lu)g(sh)W(xu)(x)W(xu)P(gun)(sh)̖̎n̵һЩP(gun)֪RͬrW(xu)(x)n̾CϴI(y)Ŀ˷ʽĄͬW(xu)ØI(y)rgxmn}W(xu)֪R}}Q}󌑳Cψ棬W(xu)á

2.O(sh)òͬՓӴκͲ֪ͬRģKn̰ڻҪ󲻽͵ėlMatlabZnʹW(xu)һNķʽ(x)W(xu)Փ֪RI(lng)ͻԭ`nքe_O(sh)ܛĿMatlabZԷܛ򞣩ӲĿDSP_l(f)Ӳ򞣩ԼܛӲY(ji)ϵľCό򞣨MatlabZܛDSPӲ_l(f)ȎׂӴCͬA(ch)ͬW(xu)иõx

ġĸn̵Ŀ˷ʽ

ĸn̿˷ʽеĆһԼȽٿ˵Ăy(tng)ʽ׃Pԇ˞Փ˺O(sh)Ӌ`˵.Y(ji)ȡ߅߅˵k

(sh)̖̎n̽̌W(xu)(ni)ݶrg̣xɢ̖cϵy(tng)ĕrl(f)l߀cU˔(sh)֞VO(sh)ӋȾC֪R@ЩҪW(xu)˽⡢ղMATLABMзԇҪný̌W(xu)ɽ̌W(xu)VҪĻ֪RcӖ(xn)͑(yng)һyȣ̌W(xu)΄(w)޵Ľ̌W(xu)rg(ni)ɻ̌W(xu)(ni)ּԓTn̵ČI(y)ԡCԼ̌`ͬrܿˌW(xu)I(y)ycMv֪Rc߉݋ǺP(gun)IĆ}Qn̽̌W(xu)еìn̿I(lng)W(xu)ѲnðᵽwČHO(sh)ӋУ׌W(xu)HvnеՓ(ni)ݺ͌HĽY(ji)ɴpӛ̌W(xu)еyccُČW(xu)̡͡W(xu)^Q̌W(xu)ЌI(y)CԼ`ԵĆ}ͬrɽQrǧ̡W(xu)(ni)ݶĆ}(sh)̖̎ǾCԺՓ֪R؄eǔ(sh)W(xu)֪R܏nԓnǰС벿ֵă(ni)ǰ޵ġ̖cϵy(tng)漰^(sh)̖̎ԕrxɢ̖̎팦cBm(x)̖cϵy(tng)еӋ㷽̖ͥcϵy(tng)дõ˷e֣ڔ(sh)̖̎оǵ֣ۼ̖ͣcϵy(tng)е΢ڔ(sh)̖̎о׃?yu)ֵܶW(xu)yһD(zhun)׃^(sh)̖̎еDFTDTFTFFT׃Q֮g“(lin)ϵͅ^(q)ey֮y

ԓn̂y(tng)Ŀkvе֪Rcٽy(tng)һCϿˡ]ԇ@NmĿԇɿзӳW(xu)ԓnijЩycc֪Rsˡ(sh)̖֪̎RԵc؄enjHO(sh)Ӌ֡ڿ˕rֻ^ġcycᗉCԡԡDzƵ҂(yng)ԓÿvһ֪RcMмrĿ˙z@N߅v߅˵ķʽܸõؙzÿλW(xu)С֪RcյֲӰԓ֪Rccn̵“(lin)ϵ

īI

[1]Z.(sh)̖̎n̽̌W(xu)ĸĸc`[J].Ї20123470-76.

[2]{Pļ.(sh)̖̎n̽̌W(xu)ĸc`[J].Ї2012386-87.

[3]p.(sh)̖̎n̽̌W(xu)ĸc̽[J].n̲̽201119475-76.

[4]ëĝ.(sh)̖̎nоͽ̌W(xu)о[J].Ї200812479-80.

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