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UWBƷ}Ѷ؛ﶨλg(sh)о

l(f)rg2016-05-13 08:44

һ¾wՓ


1.1оx
ΣUWƷҪĻԭϻa(chn)Ʒ,҇(jng)l(f)չ^аl(f)]oȡ,cϢϢPS҇ʯ͡ú̿ջȮa(chn)I(y)Ѹٰl(f)չ,ΣUWƷĔ(sh)ҲSĉLcվ,2014ϰ,(j)ȫy(tng)Ӌ,ЇΣUWƷa(chn)_һfǧΣƷ֮r,䰲ȫ톖}߶ҕΣUWƷڴжȼױԡgԺͷԵΣU|(zh),a(chn)(jng)I\ݔ桢ʹú͏Uȸh(hun)(ji)жпܮa(chn)¹,о,WƷй©Լըмs14-32%ǰl(f)ڃh(hun)(ji)¹һl(f),HӰ푵¹ʰl(f)غƷλ,߀Ӱ푵¹ʅ^(q)򸽽ľؔa(chn)ȫ,߅B(ti)h(hun)LyԻ֏͵Ⱦ,ӏ}h(hun)(ji)İȫLJҰȫa(chn)c

(j){(dio),҇󲿷ւ}쌦ΣƷöѲٴaŷʽMđҎ(gu)ƷaĶѷŰȫ,ΣUWƷAͨtѲٵlࡢ픾ͨ""ֵˇҪȻ,ւ}콛(jng)Iߌ""xҕ,Ʒ췿,(ji)sɱ,oҕPƷ}Ҏ(gu),˽ԌúpС,ú,׷N˹ƷAܼA;,ѶⰲȫxB(ti)ıֵıO(jin)Ҳ©,ijЩI(y)RϼȫO(jin)ܲTǰO(jin)r,RrΣƷѶҎ(gu)[,O(jin)ܲTxȥؚwy@oΣƷѶİȫO(jin)˘Oy,Ҳ޴İȫ[оƷ}Ѷ؛""ǻyg(sh),ΣƷ}I(y)ȫԄӻˮƽҪn},еĬF(xin)x


1.2҃(ni)λg(sh)оF(xin)
Wi-Flg(sh)һNIEEE802.11˜ʵĶ̾xoλQ,֧҃(ni)h(hun)ʮ׾xĽ롣WLANcDZy,ڌF(xin)sĴ󷶶λ,ĿǰoW(wng)jĽc(Access Point)ѽ(jng)Sͥ͹ʹWi-fiğoλϵy(tng),(j)䶨λԭɷ֞ɷN:һNʽռWi-Fi APλ,ʹAPMAC(Media Access Control)ַ_Ñλȸ؈D@NǻRSS1ԭyÑAPľx,ܭh(hun)δ֪ظɔ_,ÑλyԜʴ__,λ`s10-20m;ڶNʽʹûRSSIָyλg(sh),@Ng(sh)Ҫָy(sh)(j),ϵy(tng)ؓ,͵ЇReindeerôwifarer,Wi-FiSLAM IPSϵy(tng)_3mWi-Fig(sh)ӄں@,SWi-FiO^b,λҲܭh(hun)Ӱ푡
{ZigbeecWi-FIλԭ,{λǻڽ̖(RSSI,Received Signal Strength Indication)Ķλg(sh)lΞ2.4GHz{λ(yu)cOweС,ֲPCPDA֙CСͽKO,Ǻ͂}֮С^(q)λ(ni)БͬWi-Fiλϵy(tng),ǻڜy̖_ȵĶλʽ,λܭh(hun)•ɔ_,r^ZigBeeλһN͵Ķ̾xʵğoW(wng)jg(sh),ǻڈREE802.15.4˜ʵğoW(wng)jλZigbeeֻĺٵ,Ϳö_ǧfW(wng)j(ji)cMɵľW(wng)jϵy(tng),b㺆ҳɱܵ,ôgßo늲Mнʽ(sh)(j)ݔ,(sh)(j)ݔ^̿ɰȫ,Cݔɿʴ_,ͨЧʸZigbeeĶλȲ,Ŀǰs3m,ZigbeeĶλϵy(tng)яVڟoW(wng)jѳ츲wą^(q),úVϵy(tng)

ͬĶλϵy(tng)ͬĶλȺͷٶ,±1-1oUWBcF(xin)oͨӍg(sh)ı^:

UWBƷ}Ѷ؛ﶨλg(sh)о


ڶ»UWBĶѶ""O(jin)yg(sh)о


2.1.λg(sh)
UWBoݔg(sh)ՌF(xin)ʽIJͬ,Է֞}_o(IR:Impulse RacMd{(dio)(CM:Carrier Modulation)ʽɴIR-UWBcDz÷d{(dio),γm(x)rgdz,}_ȿ_nsns,ИO͵ռձd{(dio)Ʒʽ֞Ul(DS-CDMA)Ͷll֏(MB-OFDMA:Multi-Band OFDM)ɷN,ǰXtreme Spectrum˾,njUWB3.1GHZ-10.6GlV֞ߵ̓ɂl,һNöMƵpIص“(lin)ϾaUl{(dio)Ʒ,ݔ߿_1.2Gbps,DS-CDMAȱ,ҪܛlVm(Soft Spectral Adaptation,SSA),Wڸҵ؅^(q)gUWBlʹÄ,ǟoQcoͨOķgɔ_},˼(jng)uŗ;MB-OFDMWiMedia“(lin)l(f),njUWBlV֞14528MBl,SMB-OFDMʹ128lŵݔ{(dio)Ƶľa(sh)(j),µľaݔʿ_480Mbps 521, MB-OFDMȱcϵy(tng)s^,OӋyȴ,հl(f)řCҪ128λIFFTFFT\,Ҫ܉lʎ,ʓpҲݺҕ
ɴ˿Ҋ,ڕrgyĶλӋyྫȺ̖PUWBij󎧌,˼ʹ^͵rҲܾ^ߵĜyྫ,խϵy(tng)oɱȔMľȃ(yu)UWBĸ߾ȶλ(yu)Ҳʹ̘I(y)(yu)͹@,̈}҃(ni)kȶN

Ҏ(gu)o̖܇h(hun)ɵĶЧɔ_,̖׮a(chn)ʧIR-UWBռձȘO͵խ}_,̖ڕrϺܼ,ͨ^rVķЧ•ɔ_̖еcҲʹUWB̖ŵĶ˥䲻,Ѓ(yu)Ŀͨ^ּg(sh),޶Ȝppŵ˥䌦UWB}_Ӱ


2.2.UWBĶѶ""O(jin)yg(sh)
Ŀǰ҇Ѷ""ıO(jin),ȱЧļg(sh)O(jin)ֶһNUWBĶѶ""O(jin)yg(sh),ͨ^ƷĶ؛Mиۙλ,@ȡ؛Čr\܉E͹̶λ̎ĶλϢ,؛ﷀ(wn)rĶλϢY(ji)϶ѲٳߴMЂ}h(hun)Sؘ(gu)
(1)Ʒ}ıO(jin)؅^(q)аbUWBλOÿNڎƷѶ؛ϽUWB˺ͿReėla
(2)ÿһNƷ؛r,ϢReϵy(tng)ͨ^x衶a(ni)惦Ď׺γߴ͌Ϣ,ol(f)ǶʽģK,ǶʽģKMCU(sh)(j)Ͷλʼ̖D(zhun)l(f)ogoW(wng)j(ji)c(sh)(j)ͨ^W(wng)j(ji)c_ʼΣƷČԔ(sh)(j)ͳm(x)Ķλ̖
(3)ΣƷ\bd؛Mr,UWBӘ˺ѺƷ؛i,Ә˺\܉EƷ؛\܉EӑB(ti)λÔ(sh)(j)rl(f)(sh)(j)

(4)xȡUWB˺Ķλ(sh)(j)׃ӷȺlСijOֵ(X,y,ZSĶλӷȲ^15cm),жƷ؛\_ij̶λ,˕r{(dio)ÌrյUWBλ˺֮ǰյԓΣƷijߴϢ,ؘ(gu)Ʒ؛˿̵ĶѶB(ti)


»ącʸa?sh)UWBλg(sh)о27
3.1ӰUWBλȵط27
3.1.1Ч27
3.1.2ֱ·ȱʧ28
3.1.3ء28
3.2ącʸa?sh)UWBλg(sh)28
3.2.1ącʸaλ㷨29
3.2.2ącʸag(sh)㷨F(xin)31
3.2.3ącʸag(sh)򞔵(sh)(j)33

3.3 СY(ji)37


»ącʸa?sh)UWBλg(sh)о


3.1ӰUWBλȵط
ЧӰUWBλȵҪ֮һUWB}_һl(f),յ̖οһ̶ȵʧ,ֱ̖·̖,̖,•_Ըɔ_λڵ׌ӵĂ˺OܵόӻѶ؛ړ,̖ڇصĶЧ̖l(f)(˺)֮go̖ϵK,ֱ̖·r,̖е׏(DirectPath),Ҟֱֱ̖ĵ@rg_ǶMМy,λߵ;ՙC̖l(f)֮gд̖ϵK,ֱ̖·ܵӰ,˕r}_ε׏,ЧIJʧrgyϵ`UWBĜyྫȡQ׏ęzyȡMUWBλg(sh)(yu)ԽĶֱ,ЧDPęzyȺ㷨s֮gìyԌF(xin){(dio)Ŀǰƶ㷨,о^ֵTOAӋ,zyķɹӋ㷨,ܲɘl,λȲ;ƥVɹӋ㷨,^ߵIJɘl,㷨sȸ,CLEAN㷨,MUSIC㷨,PM㷨,@Щ㷨ҕh(hun),ܳھUWBĕrggֱ__yࡣȻ,ȺܵͻЧصķҕh(hun),㷨ڌF(xin)ֵȻʮyīI˻ڂ㷨TOATD0A“(lin)ϹӋ,һ̶˵ȭh(hun)»ڕrgyĶλ,õĸߵIJɘҲ㷨^֮,UWB̖Ăo,Ŀǰ]κһN㷨ȫųЧֱ̖ДӰ

ӰUWBλȵ߀,ͬlɔ_ȡ҃(ni)h(hun)ڶUWB̖r,HյyĿ˵UWB̖,߀յ}_̖,ɔ_Ŀ̖ДĶͶλӋĜʴ_ԡQͬlɔ_ķʽnjl(f)̖rUlʽl(f),?q)Ŀ̖÷֕r,ϵy(tng)rƯҲy`ɘʵUWB̖Nquistɘʕr,Ҳλ`


Y(ji)Փ


ķ˳λg(sh)оF(xin),UWBƷ}Ѷ؛ﶨλg(sh)P(ni)Mо,ľw£
1)˻UWBƷ}Ѷ؛""O(jin)yļg(sh),˻UWBĶѲٶλƽ_,MһоƷ}h(hun)Ķλȴ»A
2)ģMƷѶⶨλƽ_µUWBλM˄ӑB(ti)oB(ti)yԇ,(j)yԇY(ji),Y(ji)ΣƷ}ŵh(hun),Ʒ}h(hun)ӰUWBλȵ

3)ᘌΣƷ}h(hun)µĶѶⶨλ,˻UWBącʸag(sh),(jng)yԇ,ԓg(sh)ЧƶѶ؛Ķλ,mϑƷ}Ѷ؛""O(jin)y


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