Nghiên cứu hiệu năng các hệ thống dcsk dưới ảnh hưởng của chuỗi hỗn loạn đảo ngược thời gian và kênh vệ tinh di động mặt đất

BG I ODCVO TO TRNGI HCBCHKHOAHNI ON THQ U NGHINCUHIUNNGCCHT H NGDCSKDI NHHN G CACHUIHN LON O NGC THIGIANVKN HVT I N H DIN G MT T LUNNTINSK T H U T VINTHNG HN I−2021 BG I ODCVO TO TRNGI HCBCHKHOAHNI ON THQ U NGHINCUHIUNNGCCHT H NGDCSKDI NHHN G CACHUIHN LON O NGC THIGIANVKN HVT I N H DIN G MT T Ngnh:Kt h u tvinthngMs:9 520208 LUNNTINSK T H U T VINTHNG TP THH N G DN KHOAHC: PGS.TS.HONGMNHTHNG PGS.TS.NGUYNXUNQUYN LICAMO A N Nghincusinhcamo a n cckt quk h o a hc c trnhbytronglun n lcng trnhnghin cu ca bn thn thigian hc g h i ncutii h c B ch khoa HN i di s hng d n c a t p thhng d n k h o a hc.Ccsl i u,ktqut r nhbytronglunn lh o ntontrungthcvchatng c cctcgik h ccngb.Ccktqus d ngthamkhou ctrchdny v t h e o n g quyn h HN i,ngy thng Nghincusinh onThQ u TPTHH NGDNKHOAHC PGS.TS.HongMnhTh ngP G S T S NguynXunQuyn nm2021 LICMN Trongqut r nhnghincuvh o nthnhlunn ny,nghincusinhnh nc s g i p vh t r qub u u ti n, nghi n c u sinh x i n c bytlngbitn susctitpthh n g dnPGS.TS.HongMnhThngvP G S TS Nguy n Xu n Quy nhng d n h h ng khoa h c c h o nghi n c u sinh su t qut r n h n g h i n c u v h o n t h n h l u n n N g h i n c u sinh xin ch n th nh c mn c c t h y c b m n i n t v K t h u t m y t nh vVi ni n t- Vi n th ngg pchuy n m n, t oi u kin i hctpvc ctht chnhchnhchonghincusinhtrongqut r nhnghincuvh o n th nh lu nn Nghi n c u sinh xin ch n t h n h c m n P h n g o t o - Trngi h c B ch Khoa HN it oi u ki nn g h i n c u s i n h honthnhcctht cbovl u nn tins.Cuicng,nghincusinhxingilicmn s u s c t i gian h , ng nghi p vb n b lu nng vi n , gipn g h i ncusinhvt quakhkhnh o nthn h lunn HN i,ngy thng Nghincusinh onThQ u nm2021 MCLC DANHMCCCTV I TTT VT H U T NG iii DANHMCCCHNHV v DANHMCCCBNG viii MU CHNG1 C S L T H U Y T V T R U Y N T H N G K H N G DY DATRNKT H U T HNLON 1.1 Hnlo n .8 1.1.1 Ht h ngn g hnlon 1.1.2 Ccc i mca tnhiuhnlon 11 1.2 ngdngcahnlontrongtruynthngbomtmngkhngdy 13 1.2.1 Ht h n gthngtinlinlckhngdy 13 1.2.2 Triph v t r u y nthngbomttrongmngkhngdy .14 1.2.3 ui m ca truynthngbo mt datrn hnlon 16 1.3 Ccht h ngi uchs d a trnhn lon 18 1.3.1 Ht h n gi uchs l i nkt 18 1.3.2 Ht h n gi uchs k h nglinkt 20 1.4 Ccht h ngi uchh nlondatrnDCSK .20 1.4.1 iuchD C S K 20 1.4.2 iu chk h adchhnlonvisaicitin(IDCSK) 22 1.4.3 Ccphi nbncitinkhcca DCSK .23 1.5 Knhvt i n h din g m t t 25 1.5.1 Giithi uknhvt i n h din g mtt 25 1.5.2 M t sh m p h n p h i x c s u t c h o m h n h h a k n h v t i n h d i n g mtt 27 1.5.3 Mh nh knhLutz 28 1.6 Ktlun chn g 30 CHN G PHNTCHHIUNNGCAHT H NG2T2RIDCSK VINH HN G C A C H U I H N L O NO NGC THIGIAN 32 2.1 D ngsngvci mtn g quancachuihnlono ngc thigian 32 2.1.1 Dngsn gcatnhiuhnlon 33 2.1.2 ci mtt n g quanvt n g quancho .34 2.2 K th pg i uc h k h ad chh nl o nv i s a i c it i nv ik t h u tMIMO .35 2.3.Hthng2T2R-IDCSK 37 2.3.1.Mypht 37 2.3.2.Mythu 39 2.4.Phntchhiunngtl l ibitdatr ncast nhtonmi 42 2.5.Ktqump h ngs 51 2.5.1.HiunngBERquaknhAWGNvk nhfading 52 2.5.2.HiunngBERquaknhfadinga n g 55 2.6.Ktlunchn g 58 CHN G PHNTCHHIUNNGHT H NGDCSK IDCSKQUAKNHVT I N H DIN G MT T V 60 3.1 tn g p dngDCSKvI D C S K trongthngtinvt i n h din g mt t 60 3.2 Mp h ngknhLutz .61 3.3 Ht h n gDCSKquaknhvt i n h din g mtt 62 3.3.1.Sh t h ng 62 3.3.2 cln g l t h u y ttl l ibit 65 3.3.3 Mp h ng sv k t qu 67 3.4 Ht h n gIDCSKquaknhvt i n h din g2 mtt 70 3.4.1 Sm yp htvm ythu 70 3.4.2 cln g l t h u y ttl l ibit 73 3.4.3 Mp h ng sv k t qu 75 3.5 Hiusu tnngln g vp h c accht h ngDCSK 77 3.6 Mp h ngsv s o snhhiunngBERcaccht h ngDCSK 81 3.7 Ktlun chn g 83 KT L U N 85 DANHMCCCCNGTRNHKHOAHCC NGBC ALUNN .87 TI LIUTHAMKHO 89 DANHMCCCTV I TTT VT H U T NG Vittt TingAnh TingVit ASK AWGN BERBP SKBS S CCI-DCSK AmplitudeS h i f t K e y i n g AdditiveWhiteGaussianNois eBitErrorRate BinaryPhaseShiftKeyingBroa dcastServiceSatelliteCommu tationC o d e I n d e x DifferentialChaosShiftKeyingChaos DirectSequenceSpreadingSpectrum ChaosO f f - O n K e y i n g Second-orderChebyshevpolynomialfunction ChaosS h i f t K e y i n g Differential Chaos Shift KeyingDifferential Phase Shift KeyingDirectSequenceSpreadingSpectrum FrequencyS h i f t K e y i n g FixedServiceSatellite GlobalPositioningSystemImp roved-Differential Khadchbin TpmGausstrngcngTll i bit Khadchphanhp h nVt i n h dchvq ungb Khad chh n l o nv i s a i c h sm g iaohon Trip h c h u it r c t i ph nlon Khat tmhnlon Hmath cC h e b y s h e v b c hai Khadchhnlon KhadchhnlonvisaiKhadchp havisai Triphchuitrctip CDSSS COOK CPF CSK DCSK DPSKD SSS FSK FSS GPS IDCSK ISI LMSS Vittt ChaosShiftKeying Inter-SymbolI n t e r f e r e n c e LandM o b i l e S a t e l l i t e S y s t e m TingAnh Khadchtns Vt i n h dchvc n h Ht h ngn h vt o ncu Khad chhnl o nvi s a i c itin Nhiulinkt Ht h ngt h ngt i n v t i n h d i ngmtt TingVit LOS LPI arb MIMO LineofSight ngtruynthng Lowprob ability of int erc ept Xcsutphthinthp Arbitrary iln g btk Multiple-InputandMultiple- Nhiuu vo-nhiuu Output MobileServiceSatellite MSS Vt i n h dchvd i n g Noise ReductionKhadch hnlonvi saigimnhiu NRDifferentialChaosShiftKeyingPr Hmphnphixcsut DCSKPDF obabilityDistributionFunc-tion PermutationIndexKhad chh n l o nv i s a i c h sh o PI-DCSK DifferentialChaosShiftKeying nv PhaseShiftKeyingQuadrature Khadchpha Multi-CarrierDifKhad chh nl o nv i s a i a sngm PSK QMC-DCSK ferentialChaosShiftKeyingSignal-to- angc uphng InterferenceRatioSignal-to- Ts t nhiutrnnhiuTs tnh NoiseRatio iutr ntpm SIR SpaceMkh i kh ng gianth i SNR TimeBlockCodeShortR e f e r e gianKhadchhnlonvisaithamchi STBC SR-DCSK n c e D i f f e r e n t i a l ChaosShif ungn tKeying DANHMCCCHNHV 1.1 Dngsngcahaitnhiuhnlon,c torabicnghm athcChebyshevbchaivihaii ukinkhin g saikhc nhauΔx=0.0001, theothi gian chun .10 1.2 VnghtcahC h e b y s h e v bchai 10 1.3 Dngsngcatnhiuhnlon,c torabiChebyshevbc hai,theothigianchunha 11 1.4 Cchmtn g quanchunhacacctnhiuhnlon,c torabi Chebys hevbchai,theotrt h igianchunha.(a) Tt n g quan,(b)Tn g quancho .12 1.5 Phc ngsutcatnhiuhnlon.(ngun[29]) 12 1.6 Sk h icamtht h ngthngtinlinlckhngdyn gin 13 1.7 HiunngLPIcamtsm ythun h chnvixcsutpht hingi0 vh s t r iph β = 0 (ngun[39]) 17 1.8 Sk h icaht h ngCSK:(a)Myphtv( b ) Mythuda trnlin g b.(ngun[31]) 19 1.9 Sk h ichohth ngDCSK:(a)Myphtv( b ) Mythu (ngun[31]) 21 1.10 Sk h ichophn g phpIDCSK:(a)Myphtv( b ) My thu.(ngun[48]) 22 1.11Minhhaknhvt i n h din g mtt (ngun[77]) 26 2.1 Dngsngca(a)tngv( b ) tchcahaitnhiuhnlonthng thn g 33 2.2 Dngsngca(a)tngv( b ) tchcaccchuihnlonthng thn g vo ngc thigian 34