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Hinh 27. Chiim xung sieu am hep sach (a), bi ngap trong on trang Gauss (b) va tin hieu ra sau khi loc 6" bo Igc thich nghi (c).
Hinh 28 va 29 la eac ket qua ghi duge tren dao dong ky vai su tang ly so S/N tii' 4 den 15, khi ap dung bg Igc thich nghi dimg thuat loan DLMS nbimg tren chip FPGA cua Xilinx. Cac tin hieu vao la eac song vuong va sin eo t^n so 1,130 kFIz (eo bien do
dmh dinh p-p la 2,50 V) bi can nhieu sin eo Vm s5 7,816 kFIz (eo bien do 0,65V) xep
chong len, vaeh pho cua ean nhieu n5ni trong dai pho eiia tin hieu sach nen kho eo the su dung cac maeh Igc dai ehan thong thuang ma khong bj mat thong tin a loi ra. Bang
bg Igc thieh nghi DMLS tin hieu ra da duge cai thieu dang ke ( S / ^ - 1 5 , do meo lin
hieu nho) nhu ket qua nhan duge tren kenh 1 ciia dao dong ky.
Hinh 30. Tin hieu viio song vuong eo ean nhicu (kenh 1, duoi) va tin hieu ra sau bo loe DLMS (kenh 2, tren).
Hinh 31. Tin hieu MIO song sin eo ean nhieu (kenh 1, duoi) \a tin hieu ra sau bo loe DLMS (kenh 2, tren).
KET L U A N
De tai dd thivc hien duge cue nhiem vu sau:
1. Da nghien eiiu long quan cae van de ly thuyet ve cae bg Ige so, bg Ige FIR, bg Ige thich nghi, bg loc co cau true Systolie duang ong. Nghien eiru sir dung eac vi maeh tieh hgp co Ion FPGA de thiet ke thire hien xay dung cae chuang trinh phan mem eho
cae bg loc so nay tren ngon ngu 1116 ta phan eirng VFIDL. Ngi dung tai lieu eo the duge
sir dimg eho eong tac dao lao tai DHCN trong giai doan moi phat trien eong nghe thiel ke VLSI a Viet nam hien nay.
2. Da thue hien eae bg Ige FIR va bg Ige thieh nghi FIR dimg thuat loan LMS tren chip FPGA tai mgl Kit phal trien eiia Xilinx. Cae bg Ige nay eung duge nghien eiru phat trien vai eau triie Syslolie duang ong bae thap DLMS de chimg minh hieu qua tang toe do xii' ly eiia ehiing Iren ea sa cae ky thuat duang ong (pipelining). Ngon
ngu' dae la phan eirng VLIDL duge sir dung kel hgp vai phan mem Matlab lrong qua
trinh thiet ke thue hien.
3. Cae bg loe da duge ap dung eho 3 irng dung trong he thong triet ean nhieu. Cae ket qua thu duge la phii hgp vai ly thuyet va la ea sa eho ciie ky su lrong viee lim cae tiep can nghien eiru bg Ige thieh nghi so.
Ket qua ve khoa hoc:
1) Da thiet ke, mo phong va thue hien thanh eong cac mo hinh tren kit phat trien Virtex-II PRO eua Xilinx vai chip FPGA ehinh la XC2VP30-4FFI152 nhu sau:
+ Bg Ige FIR dang trire tiep. + Bg Ige FIR Systolic duong ong.
+ Bg Ige thieh nghi dimg giai thuat LMS loi FIR dang trirc tiep (LMS- DF) voi eae do dai 8, 16 va 32 lap.
+ Bg Igc thieh nghi Systolic duang ong DLMS loi FIR dang true ti^p (DLMS-DF) vai eae do diii 8, 16 vii 32 tap.
+ Bg Ige thich nghi Systolic duang ong DLMS loi FIR dang chuyin vj (DLMS-TF) vai eae do dai 8, 16 va 32 tap.
Cae bg Igc ke tren da duge thii' nghicm eho kel qua lot vai cae irng dung triet nhieu dai rgng va Igc nhieu dai hep tren tin hieu bang rgng. Cac mo-dun phan eirng \'a
phan mku nay se duge su dung t6t eho eac eong lae dao tao thilt k^ VLSI va nghien
cii-u ihugc ITnh virc xir ly lin hieu s6 sir dung eae maeh FPGA. 2) - 01 bai bao da giri den FIgi nghi Quoe le ATCIO.
- 01 biio cao lai Hgi nghi NCKII sinh vien DHCN. dat giai nliat.
- 01 bao cao tai Hgi nghi NCKII sinh vien DHCN. dat giai khuyln khieh.
Ket qu(i phue vu thuc te:
2) I'Jng dung eho giang day ly thuy6t va thue hanh eae -Thiet ke s 6 \ -Thiet ke
mach lich hgp VLSI va ASIC" "Ck\ triic may vi linh va ky thuat ghep nai'\ va '^Xir li
lin hiC'u stV" lai truang DI ICN. DHQG HN. Cac mon hgc nay- vcVi cae irng dung duge
cap nhal lir de Uii. eo the ap dung eho cac thuc lien nhu he thong dieu Idiien so hoae he
thong vicn thong (xu ly tin hieu am thanh, hinh anh, dien tim, thiet bi sira song eho mang lru\ CMI dCr lieu loc do eao).
Ket qua diio tao:
1) So sinh \ien tam Khoii luan lot nghiep lien quan den de tai: 03. 2) So sinh vicn nghien eiiu khoa hgc lien quan den dc lai: 03.
3) So hgc \'icn sau dai hgc lam Luan van lien quan den de tai: OL
4) So nghien cim sinh lam Luan an lien quan den de lai: 01.
Ket qua nfnig cao tieni lire khoa hge:
Co duge mgl bg phan mem \a'\ cite mo-dun dimg eho viee xay dung eae bg Ige
so hicn (.lai su dung kien Inic S}'stolic lien co so' ket hgp cae kit phiil trien thiet ke so cua hang Xilinx viyi cac ngon ngu phiit trien phan ciing VFIDL va goi phan mem MAILAB.