Đồ án SDR.pptx

5/22/2018 n SDR.pptx

1/28

HC VIN CNG NGH

BU CHNH VIN THNG

n: V tuynnhnghabngphnmm(SDR)v ngdngtrong mngv tuynnhnthc(CR)

Gio vin hngdn

Sinh vin thchin:

NguynKhcTunD09VT2- PTIT


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Tm ttnidung:

II

Ktlun

I Tngquan vSDR

III

Phn tch cutrc SDR

IV

ngdngcaSDR trong mngv tuynnhnthc(CR)


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TNG QUAN V SDR

ChngI

1. Khi nimSDR2. Cutrc caSDR

3. Cc thnh phncbncaSDR


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1. Khi nimSDR

nhngha: Thitbv tuync cutrc mm(SDR) l thitbtrongvicsha tn hiuthu cthchintimttngno xui dngtanten, tiubiul sau khi lcdirng, khuychitpm nhv htnxungtnsthphntrong cc tngtiptheo, qu trnh sha tnhiupht dinra ngcli. Vicxl tn hiustrong cc khichc

nngc khnngnhlicuhnh v mmdo, xc nhcc cimcathitbv tuyn.

Hnh 1.1: SkhiSDR


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KH NNG NH LI CU HNH

SDR KH NNG KT NI NG THIKHP NI

1. Khi nimSDR

KH NNG IU HNH KT HP


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2. Cutrc SDR

Hnh 1.2: SDR lymutrung tn


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2. Cutrc SDR

Hnh 2: SDR lymutrung tn

Hnh 1.3: SDR chuynitrctip


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2. Cutrc SDR

Hnh 1.4: Cutrc chung caSDR


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Click to add title in here

KHI CAO TN C TCH HP

SDR B CHUYN I TNG T - S

3. Nhngthnh phncbncaSDR

MCH X L TN HIU S


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PHN TCH CU TRC SDR

ChngII

1. Yu cucimkthutcaSDR

2. Cc cutrc my thu

3. Cc cutrc my pht


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cimmy pht: Mccng sutra

Diiukhincng sut

Nhngnhiuxgi

cimmy thu:

nhyuvo

Mctn hiucnthu lnnht Biukhi

Cc ditnssdng


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Bng2.1: Yu cuvcng sutcho cc giao dinv tuyn


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Bng2.2: Yu cuvnhycho cc giao dinv tuyn


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Bng2.3: Cc ditnslm viccho cc giao dinv tuyn

Chungiao dinV tuyn

Knh ng ln(MHz) Knh ng xung ( MHz) Khong song cng (MHz)

GSM 900 890 - 915 935 - 960 45

E - GSM 900 880 - 915 925 - 960 45

R - GSM 900 876 - 915 921 - 960 45

DCS 1800 1710 - 1785 1805 - 1880 95

PCS 1900 1850 - 1910 1930 - 1990 80

DECT 1881.792 - 1897.344 1881.792 - 1897.344 Khng s dng

UMTS FDD

Chu u1920 - 1980 2110 - 2170 190

UMTS FDD

(CDMA 2000)1850 - 1910 1930 - 1990 80

UMTS TDD(Chu u)

1900 - 19202010 - 2025

1900 - 19202010 - 2025

UMTS TDD(CDMA 2000)

1850 - 19101930 - 1990

1910 - 1930

1850 - 19101930 - 1990

1910 - 1930

Bluetooth 2400 - 2483.5 2400 - 2483.5

HIPERLAN/25150 - 53505470 - 5725

5150 - 53505470 - 5725


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2. Cc cutrc camy thu

ctnh catn hiuthu uvo: Loitn hiu: Thc

Cng sutthp: < -107 (dBm)

Dingcao: > - 15 (dBm)

ctnh catn hiuura:

Loitn hiu: Phc(I/Q)

Ph:bnggcvidithng hn20(Mhz) Dirng: cgimnhiukhinhstngpngcc yu cucabchuynitngts


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Hnh 2.1: Cutrc my thu chuynitrctip


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Hnh 2.2: Cutrc my thu binitnnhiuln


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2. Cc cutrc camy pht

Hnh 2.3: Cutrc my pht chuynitrctip


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2. Cc cutrc camy pht

Hnh 2.4: Cutrc my pht binitnnhiuln


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NG DNG CA SDR TRONGMNG V TUYN NHN THC

ChngIII

1. Khi nimv tuynnhnthc(CR)

2. Miquan hgiaSDR v CR

3. SDR v mtsgiithutcitincho CR


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1. Khi nimCR

Tthch ngvicc thitk

Khnngcmnhnv olngcc thng svmi trng

Khnngkhai thcphlinh hot

Cung cpdngxung tn hiuvbngthnglinh hot

iuchnhtcdliu, thch ngnnglngThng tinbomt, chi ph sdngph hp

Cognitive

Radio


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V tuyn thng minh

C cu thng minh(Cognitive Engine)

Chc nng cc lp cao hn

SDR

Cm bin phncng v mi trng

v tuyn

Hnh 3.1:Miquan hgiaSDR v CR


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Hnh 3.2: So snhgiaV tuynthng thng, V tuynnhnghabngphnmmv V tuynnhnthc


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Hnh 3.3: So snhsthch nghi caCR v SDR

SDR thch nghi

vi mi trngmng

CR thch nghi

vi mi trngph


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Hnh 3.4: SkhithchinV tuynnhnthcdatrnSDR

Antenbng rng

B ghpsong cng

Cngnhthi

iu khincng sut pht(TPC)

B tng hpthch ng

Pht hin thu bao c cp php(IPD)

La

chn

tn

s

ng

(DFS)

T cu hnh

thng tin/

Phi hp

la chn

SDR-1 (f1)

SDR-1 (f2)

SDR-1 (fN)

Nhiu anten

u ra

u vo

Bng tn = fi


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3. SDR v cc giithutcitincho CR

Truyntn hiuviliBER nh: Bm ha RS

M ha xon(Convolution Encoder)

Giim Turbo

SdngOPQSK

Truyndliuvitccao

M habngcon

M ha dontuyntnh (LPC)


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Nidung can tm hiuvthnhphncutrc

caSDR, cc cutrc tiubiucaSDR: cutrc SDRchuynitrctip, cutrc SDR lymutrung tn. Cu

trc my thu v my pht SDR, cngnhgiiquytcc vncbntrong cc cutrc . V cuicng, n nu lnng dng caSDR trong mngv tuynnhnthc(CR)Vai tr caSDR trong mngCR.

KT LUN


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Documents

Đồ án SDR.pptx