[毕业设计 论文 精品]lms及其改进算法研究 毕业论文

1a1a0a2a3a4a5a6a7a9a8a10a11a12Sx(n)y(n)-+e(n)d(n)d(n)LMS及其改进算法研究a13a14a15a16a17a18a19a20a21a22a23a24a19a25a26a27a28a29a30a31a32a33a34a35a36a37a38a39a28a40a41a42a43a44a45a36a37a46a47a48a49a50a49a51a52a53a54a55a22a56a57a27a58a59a19a20a60a35a31a61a38a62a63a38a64a65a66a67a68a19a20a69a70a71a72a73a19a20a34a73a55a74a75a76a35a19a20a77a78LMSa19a20a79a40a80a81a19a20a81a82a83a84a85a64a86a87a83a88a89a90a91()na78a92a93a19a20a36a37a38a28a31a61a38a35a94a95a77a96a55MATLABa78a40a97a98a99a100a28a36a37a101a27a62a81a82a83a102a103a104a105a77a106a107a108a109a64a110a88a89a111na112a35a113a42a114a70a115a116a64a117a107a111na112a113a118a119a42a120a21a22a118a121a35a36a37a101a27a64a117a107a111na112a113a42a122a123a64a120MLMSa19a20a124a125a62a126a127LMSa19a20a77a128a129a35a71a72a73a130a131a118a121a64a38a132a22a83a122a119a80a81a77a133a134a135a136LMSa19a20a137a71a72a73a137NLMSa19a20a137a110a88a89a137MATLABa102a103AbstractBecauseoflowcomputationalcomplexity,stableenvironmentintheconvergenceofgood,unbiasedanditsmeanconvergestothewienersolutionandimplementationalgorithmsusingfiniteprecisionstabilityandothercharacteristics,LMSalgorithmasadaptivealgorithmintheapplicationofthemostawiderangeofalgorithms.WehaveadetailedstudyonLMSalgotithmanditscomplementaryalgotithm,disscusedthestep-sizesinfluentforthealgorithmsconvergencespeedandstability.AndusingMATLABsimulatedthelearningcurve,convergencespeedofLMSalgotithm.Theresultobservedthatthevalueofvariablestep-sizea138na139isveryimportant,ifitisabiggermayhaveafastconvergencespeed,butifnot,theNLMSalgotithmcaninsteadtheLMSalgotithminthecharacteristics.Inaddition,theyhaveafastadaptivecourseandgreatlyprogressinperformance.Keywords:LMSalgotithms;adaptive;NLMSalgotithms;variablestep;MATLABsimulatea140a141a141a142a143a142a143a142a144a145a146a147a148a149a150a151a152a147a153a154a155a156a157a158a159a160a161a162a163a164a165a166a167a168a169a170a171a172a173a174a164a165a175a176a177a178a179a178a180a181a182a183a184a185a186a187a188a189a190a191a192a193a163a159a194a166a195a196a166a197a198a199a200a201a191a192a202a203a204a205a206a191a192a162a206a184a207a208a209a163a191a192a210a211a212a213a214a199a200a201a191a192a215a169a216a217a191a192a218a219a199a200a201a191a192a168a220a221a199a200a201a191a192a195a222a217a223a224a225a226a163a227a228a197a229a214a169a166a230a215a206a184a217a223a224a231a232a210a233a234a234a235a236a237a235a236a235a238a239a240a241a242a243a240a241a242a243a244a245a245a246a246a247a248a249a250a251a248a249a204a205a206a252a253a254a255a53a0a252a253a254a1a2a197a91a163a3a4a5a206a6a252a253a7a8a9a10a11a12a160a161a163a13a14a15a13a14a163a197a105a16a17a18a204a19a20a21a163a164a165a193a22a23a175a207a24a252a253a163a25a26a210a204a205a206a252a253a254a212a27a185a17a28a29a25a163a204a205a206a191a192a197a120a28a191a192a30a31a32a33a34a35a168a34a125a215a36a7a8a37a171a197a130a38a17a194a39a40a216a13a252a253a7a37a197a31a198a91a212a27a230a185a41a174a42a43a11a12a160a161a163a13a14a210a36a128a44a451a140a46a197a45a162a139a47a193a22a48a166a49a50a51a46a17a28a30a148a52a252a253a254a197a91a163a3a4a5a206a203a150a54a179a55a197a6a95a169a203a252a253a7a8a56a57a58a210a204a205a206a252a253a254a34a125a59a60a203a156a54a179a55a197a140a61a62a163a5a206a59a60a203a159a54a179a55a197a160a63a59a60a178a54a179a55a203a159a54a179a55a255a156a54a179a55a162a63a210a61a62a5a206a59a60a159a54a179a55a9a32a33a1a2a184a89a64a65a66a163a197a204a205a206a252a253a254a163a34a125a59a60a156a54a179a55a9a214a61a62a5a206a59a60a159a54a179a55a217a223a67a68a163a197a252a253a7a8a96a160a63a59a60a178a54a179a55a163a69a70a229a204a19a20a21a197a198a156a54a179a55a171a67a68a171a71a140a61a62a163a5a206a159a54a179a55a1732x(n)xH(n)a72Iz-1I+-e(n)d(n)w(n+1)w(n)a73a74a75a76a77a78a79a80a81a82a73a83a84a84a85a85a86a87a88a90a92a93a94a97a98a99a100a101a102a103a104a106a107a108a93a109a110a111a112a113a114a115a116a117a118a119a121a122a123a124a126a127a129a131a132a133a134a135a136a137a138a141a112a119a121a142a143a122a126a129a131a133a134a119a123a144a145a141a146a147a127a131a149n=0a151a152a153a154a155a157a158a161a163a164a151a165a166a167w(0),a185a168a169a166LMSa170a172a151a174a170,a175a176a188a177a178a179a180a177a181a182a183a184a186a195)()()()1(nxnenwnw+=+(1)a187a189a190a191a192a193a194a196a197a187a189a198a199a195(2)a200a201a201a202a203a204a205a202a203a204a206a207a208a209a210a211a208a209a210a211a212a212a213a213a214a203a204a205a206a207a215a216a217a218a219a220a221a222a174a223a224a225a226a157a158a227a228a151a229a228a230a231a232a233a234LMSa170a172a151a187a189a235a236a237a238a239a240a220a241a242a243a244a172a232a245a246a181a247a248a192a187a189a176a249a237a181a250a251a252a253a254a151a244a172a255a25a251a0LMSa67NormalizedLMS,a245a217a161NLMSa71a170a1721,3a59a181a182a183a184a186a215a196a186a1a2a195a67a222a71a187a189a190a191a192a193a194a196a197a187a189a198a199a19520(4)a26a3a28a4a28a4a203a204a205a206a207a69a5a6a7a8a170a172a151a9a10a184a186a215a196a186a1a2a195)()(2)()1(nxnenwnw+=+(5)a187a189a190a191a192a193a194a196a197a187a189a198a199a195a676a71a201a30a203a204a205a203a204a206a207a14a11a12a14a11LMSa13a15a16a17a18a19a20a21a22a23a24a27a29a13a15a49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