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ߵԺ(sh)̖̎½̌W(xu)ĸĸՓ

r(sh)g2021-06-18 19:21:51 Փ ҪͶ

ߵԺ(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)̖̎һڴĵһ(g)W(xu)ڻڶW(xu)_nn̖cϵy(tng)W(xu)Bm(x)̖cϵy(tng)ĕr(sh)l򼰏(f)lM(jn)һպ˽┵(sh)̖cϵy(tng)ķ؄eǔ(sh)֞VO(sh)Ӌ(j)ԼMATLABеČ(sh)F(xin)̎ڽ̌W(xu)^УҪnϵ֪R\؂ڽoW(xu)ͬr(sh)߽̌W(xu)Ч̎Ҫץc(din)֪RY(ji)(gu)ӴҪͬČW(xu)Ҫʩ̡ᘌ@Tn̵đ(yng)(chung)(sh)`Եc(din)Լ(sh)̖̎wٰl(f)չҪ̌W(xu)Vă(ni)M(jn)޸ĺƣڲӓuՓԼO(sh)Ӌ(j)ǰ(yu)Փ֪RY(ji)(gu)ӏ(qing)(sh)(yn)Ӗ(xn)؄eT电(sh)֞VO(sh)Ӌ(j)ȾCӖ(xn)

⣬öýw̌W(xu)ֶκУ@W(wng)j(lu)(sh)ֻƽ_ĽO(sh)̌W(xu)ṩµĻĶʹný̌W(xu)(ni)ݸSnϢĂfnr(sh)sr£ߌW(xu)^eOĶʹ̌W(xu)|(zh)ͽ̌W(xu)ЧʵwɏŽׂ(g)M(jn)иM(jn)

һŇW(xu)ֶνY(ji)ʹ

1.(sh)̖̎һT(sh)`ԺՓԶ܏(qing)ČI(y)nڽ̌W(xu)^ߌW(xu)W(xu)(x)ķeOȡՓ̌W(xu)͌(sh)(yn)(sh)Ӗ(xn)̌W(xu)Y(ji)ϵĽ̌W(xu)ʹW(xu)W(xu)y(tng)Փ̌W(xu)ԹݔʽҪʽM(jn)н̌W(xu)ģsW(xu)(x)M(jn)ȣώnDzv@ʹW(xu)ķeOԵòְl(f)]ְl(f)]W(xu)^܄(yng)Æl(f)ʽ̌W(xu)ʽώvֻռnÕr(sh)g40%W(xu)ώĻӣ}c(x)}Ľռ30%nϬF(xin)(sh)(yn)cռ30%ͨ^ԭ֪Rv⡢(x)}ĽԼ(sh)Ӗ(xn)ʹW(xu)ջՓ֪RĻA(ch)ϣW(xu)ͽQ}ķͬr(sh)Ҳ{(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ԭҪúڰM(jn)ƌ(do)C׌W(xu)һώ˼·fһЩҪDʾeʾԼ֪Rc(din)ѭh(hun)λѭh(hun)eͨ^ýw•DҕlӮȶNʽӵĽ̌W(xu)ʽM(jn)лӽ̌W(xu)n(x)}P(gun)֪RĽBԼnÃ(ni)ݵĔU(ku)չtУ@W(wng)j(lu)̌W(xu)ƽ_(sh)̖̎n̵ςP(gun)nYԴɺӑՓg

3.(sh)̖̎MatlabZԼDSPg(sh)ЙC(j)ؽY(ji)ʹͬW(xu)ڌW(xu)(x)P(gun)̖̎Փ֪Rͨ^㷨ZM(jn)ܛDSPӲƽ_ϵԌ(sh)F(xin)@W(xu)ڌW(xu)(x)^܌W(xu)֪Rڕ؞ͨA(ch)nI(y)A(ch)n͌I(y)nЙC(j)P(gun)“(lin)ʹW(xu)[ÓW(xu)n̪(d)Եe(cu)`^Ķ߽̌W(xu)|(zh)

Փ㷨č(sh)`oܽY(ji)

1.(sh)(yn)̌W(xu)B(yng)W(xu)Փ“(lin)ϵ(sh)HܵҪֶB(yng)c͘I(y)Y(ji)ϵm˲ŲȱٵҪnõՓ̌W(xu)(ni)ݵČW(xu)(x)ҪW(xu)W(xu)ͱM(jn)Ќ(sh)(yn)W(xu)(x)Ӗ(xn)nЌW(xu)֪Rõ(sh)HO(sh)Ӌ(j)͹(sh)(yn)(xing)ĿԹ̰鱳磺FFT̖lVw늈D̖•̎(sh)̖̎pl̖ϵy(tng)еđ(yng)õְl(f)]W(xu)^܄(sh)(yn)Ӗ(xn)ɼW(xu)W(xu)n֪Rԭͬr(sh)ҲB(yng)ˌW(xu)(d)}߾O(sh)Ӌ(j){(dio)ԇĻ(qing)W(xu)Ą

2.ӏ(qing)nO(sh)Ӌ(j)Д(sh)̖̎cDSPg(sh)ľoܽY(ji)W(xu)`\(yn)W(xu)Ĕ(sh)̖n֪Rͨ^һ(g)^СĔ(sh)̖̎ȥ(yng)ϵy(tng)O(sh)Ӌ(j)c_l(f)Z̖ĞVZ̖lVϵy(tng)CnO(sh)Ӌ(j)β•A̎F(xin)zW(xu)O(sh)Ӌ(j)Ӳܛ{(dio)ԇY(ji)(j)W(xu)nO(sh)Ӌ(j)΄(w)ruּ(x)t(j)ƽ^ur(ji)W(xu)ɿW(xu)ͨ^ij(g)̰O(sh)Ӌ(j){(dio)ԇ׫O(sh)Ӌ(j)(bo)棬̖̎㷨O(sh)Ӌ(j)DSPܛӲO(sh)Ӌ(j)^W(xu)MatlabDSP_l(f)ľIJ򾎌c{(dio)ԇW(xu)M(jn)̖̎Ĺ̾CӖ(xn)Ӗ(xn)W(xu)ľCO(sh)Ӌ(j)O(sh)Ӌ(j){(dio)ԇͮa(chn)ƷO(sh)Ӌ(j)Ą(chung)B(yng)W(xu)\(yn)W(xu)Փ֪R(d)ؽQ(sh)H}W(xu)l(f)](chung)˼SQ(sh)H}ṩˏV韵O(sh)Ӌ(j)_

3.B(yng)W(xu)(chung)Œ(sh)`M(jn)лDSP̖̎̎ϵy(tng)ܛӲO(sh)Ӌ(j)Ӗ(xn)cȫW(xu)O(sh)Ӌ(j)ِY(ji)B(yng)W(xu)(chung)¾񼰹O(sh)Ӌ(j)(sh)`nɽ̎vW(xu)nԌW(xu)ِ(sh)(zhn)}ĿՓČ}Ŀyԇc(din)uȭh(hun)(ji)M

F(xin)g(sh)đ(yng)

1.׌W(xu)ͨ^M(jn)ľW(wng)j(lu)g(sh)W(xu)(x)W(xu)P(gun)(sh)̖̎n̵һЩP(gun)֪Rͬr(sh)W(xu)(x)n̾CϴI(y)Ŀ˷ʽĄ(l)ͬW(xu)ØI(y)r(sh)gxmn}W(xu)֪R}}Q}󌑳Cψ(bo)棬W(xu)

2.O(sh)òͬՓӴκͲ֪ͬRģKn̰ڻҪ󲻽͵ėlMatlabZnʹW(xu)һNķʽ(x)W(xu)Փ֪RI(lng)ͻԭ(sh)`nϣքe_O(sh)ܛ(sh)(yn)(xing)ĿMatlabZԷܛ(sh)(yn)Ӳ(sh)(yn)(xing)ĿDSP_l(f)Ӳ(sh)(yn)ԼܛӲY(ji)ϵľCό(sh)(yn)MatlabZܛDSPӲ_l(f)Ȏׂ(g)ӴCͬA(ch)ͬW(xu)иõx

ĸn̵Ŀ˷ʽ

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

(sh)̖̎n̽̌W(xu)(ni)ݶr(sh)gxɢ̖cϵy(tng)ĕr(sh)l(f)l߀c(din)U˔(sh)֞VO(sh)Ӌ(j)ȾC֪R@ЩҪW(xu)˽ղMATLABM(jn)зԇ(yn)Ҫný̌W(xu)ɽ̌W(xu)VҪĻ֪Rc(din)Ӗ(xn)͑(yng)һy̌W(xu)΄(w)޵Ľ̌W(xu)r(sh)g(ni)ɻ̌W(xu)(ni)ּԓTn̵ČI(y)ԡCԼ̌(sh)`ͬr(sh)ܿˌW(xu)I(y)yc(din)Mv֪Rc(din)߉݋ǺP(gun)IĆ}Qn̽̌W(xu)еìܣn̿I(lng)W(xu)ѲnðᵽwČ(sh)HO(sh)Ӌ(j)У׌W(xu)HvnеՓ(ni)ݺ͌(sh)HĽY(ji)ɴpӛ̌W(xu)еyc(din)c(din)ُČW(xu)̡͡W(xu)^Q̌W(xu)ЌI(y)CԼ(sh)`ԵĆ}ͬr(sh)ɽQr(sh)ǧ̡W(xu)(ni)ݶĆ}(sh)̖̎ǾCԺՓ֪R؄eǔ(sh)W(xu)֪R܏(qing)nԓnǰС벿ֵă(ni)ǰ޵ġ̖cϵy(tng)漰^(sh)̖̎ԕr(sh)xɢ̖̎팦cBm(x)̖cϵy(tng)еӋ(j)㷽ͥ磬̖cϵy(tng)дõ˷eڔ(sh)̖̎оǵ֣ۼ̖ͣcϵy(tng)е΢ڔ(sh)̖̎о׃?yu)ֵȣܶW(xu)yһD(zhun)׃^(sh)̖̎еDFTDTFTFFT׃Q֮g“(lin)ϵͅ^(q)ey֮y

ԓn̂y(tng)Ŀkvе֪Rc(din)ٽy(tng)һCϿˡ]ԇ@NmĿԇɿзӳW(xu)ԓnijЩyc(din)c(din)֪Rsˡ(sh)̖֪̎RԵc(din)؄enj(sh)HO(sh)Ӌ(j)ˣڿ˕r(sh)ֻ^ġc(din)yc(din)ᗉCԡDzƵ҂(yng)ԓÿvһ(g)(d)֪Rc(din)M(jn)мr(sh)Ŀ˙z(yn)@N߅v߅˵ķʽܸõؙz(yn)ÿλW(xu)С֪Rc(din)յֲӰԓ֪Rc(din)c(g)n̵“(lin)ϵ

īI(xin)

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

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

[3]p.(sh)̖̎n̽̌W(xu)ĸc̽[J].n̲̽ģ201119475-76.

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

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