O le COFDM fa'asalalauga fa'atekonolosio loʻo i ai faʻamoemoega faʻaoga lautele i le tele o matata, aemaise lava i faʻaoga faʻaoga i felauaiga atamai, fomaʻi atamai, aai atamai, ma isi faʻalapotopotoga, lea e faʻaalia atoatoa ai lona lelei, mautu, ma le faʻamaoni.
O ona fa'amanuiaga e pei o le fa'aogaina o alaleo maualuga, malosi fa'alavelave fa'alavelave fa'alavelave, fa'asalalauga fa'amatalaga maualuga ma le saogalemu maualuga e maua ai le tele o atina'e fa'aogaina faiga fa'asalalau COFDM.
Faatasi ai ma le televave o le atinaʻeina o saienisi ma tekinolosi,tekinolosi feso'ota'iga uaealesiua fa'aaogaina lautele i vaega eseese.Faatasi ai ma i latou, o le COFDM (Coded Orthogonal Frequency Division Multiplexing) faiga faʻasalalau uaealesi ua faasolosolo malie lava ona avea ma fetu tekonolosi i le fanua o fesoʻotaʻiga uaealesi ona o lona faʻaogaina lelei o alaleo ma le lelei anti-multipath mafai gafatia.
O lenei tusiga o le a suʻesuʻeina loloto le faʻavae, faʻataʻitaʻiga faʻaoga ma le lelei o faiga faʻasalalau ole COFDM faʻatusatusa i isi tekinolosi.
1. Fa'avae o le COFDM fa'asalalauga fa'apipi'i
O le COFDM wireless transmission system e faʻaogaina ai le alalaupapa coding, faʻaogaina o faʻailoga ma faʻamatalaga faʻamatalaga tekonolosi e iloa ai le tuʻuina atu o faʻamatalaga ata.Muamua, fa'apipi'i ma fa'ailoga fa'amaumauga ata e fa'aitiitia ai le aofa'i o fa'amatalaga e tu'uina atu.Ona fa'aogaina lea e le fa'aogaina o fa'ailo le fa'asologa o fa'amaumauga i luga o le va'ava'a i le fa'aupu fa'aupu fa'apitoa e iloa ai le suiga o alaleo o fa'amaumauga.O le faʻailoga faʻatulagaina e auina atu i le faʻaiʻuga e ala i faʻamatalaga faʻamatalaga e faʻamaeʻa ai le faʻasalalauga faʻasalalau o faʻamatalaga ata.
2. Fa'atatauga fa'atusa o le COFDM fa'asalalauga fa'asalalau
2.1.Femalagaiga atamai
I le tulaga o felauaiga atamai, COFDM faiga fa'asalalau uaealesi e mafai ona fa'aogaina i le mata'ituina o ta'avale, fa'atautaia o ta'avale, fa'atonuga o fa'ailoga, ma isi mea e fa'aleleia atili ai le fa'aogaina o feoaiga ma fa'amautinoa le saogalemu o feoaiga.
Mo se faʻataʻitaʻiga, 100 bits o faʻamaumauga e manaʻomia ona faʻaleleiamofa'asalalauing.Muamua sui i le 200 bits,.Pe a maua le faailo, e tusa lava pe i ai se faʻafitauli i le tuʻuina atu o 100 bits, o faʻamatalaga saʻo e mafai lava ona faʻaitiitia.I se faapuupuuga, o le faʻaopoopoina o le redundancy aʻo leʻi suia e faʻaleleia le faʻamaoni o le faʻasalalauga.Ole mea lea e ta'ua o le Fa'asa'oga Fa'aletonu i totonu (FEC) ile faiga COFDM.Ma it o se vaega taua ole faiga COFDM.
2.2.Tausiga faafomai atamai
I le tulaga o le tausiga faʻafomaʻi atamai, o le COFDM wireless transmission system e mafai ona faʻataunuʻuina galuega e pei o le telemedicine, faʻasalalauga faʻasalalau faʻasalalau faʻasalalau, ma faʻasalalauga taimi moni o ata faafomaʻi, faʻaleleia le lelei ma le lelei o auaunaga faafomaʻi.
2.3.Aai atamai
I le fanua o le aai atamai, COFDM wireless transmission system e mafai ona faʻaogaina i le saogalemu o le taulaga, mataʻituina o le siosiomaga, malamalama malamalama, ma isi mea e faʻaleleia ai le tulaga atamai o le pulega o taulaga ma faʻaleleia le tulaga lelei o le olaga o tagatanuu.
3.Tulaga lelei o le COFDM wireless transmission system
Faatusatusa iisi tekinolosi feso'ota'iga uaealesi, COFDM faiga fa'asalalau uaealesi ei ai tulaga lelei nei:
1. Fa'aogaina o alaleo maualuga
COFDM tekonolosi e mafai ona faʻaogaina atoatoa punaoa bandwidth ma faʻaleleia le faʻaogaina o alaleo e ala i le faʻasalalauina o faʻamatalaga i luga o le tele o subcarriers mo le faʻasalalauga.
2. Malosi anti-multipath faʻalavelave gafatia
COFDM tekinolosi faʻaaogaina le faʻaogaina i le va o soʻotaga faʻapipiʻi e vavae ese ai faʻailoga o auala eseese i le pito e maua ai ma faʻaitiitia ai le aʻafiaga o le faʻalavelave tele.
3. Fa'asalalau fa'amaumauga maualuga
E ala i le faʻaogaina o tekonolosi faʻatulagaina maualuga ma faʻaogaina algorithms lelei, e mafai e le COFDM telefoni feaveaʻi faʻaogaina le faʻaogaina o faʻamatalaga maualuga.
4. Puipuiga maualuga
COFDM tekinolosi faʻaogaina faʻamatalaga algorithms e faʻailoga ma faʻasalalau faʻamaumauga, puipuia lelei le saogalemu o faʻamatalaga faʻasalalau.O le COFDM wireless transmission system o loʻo i ai faʻamoemoega faʻaoga lautele i le tele o matata, aemaise lava i faʻaoga faʻaoga i felauaiga atamai, fomaʻi atamai, aai atamai ma isi faʻalapotopotoga, lea e faʻaalia atoatoa ai lona lelei, mautu ma le faʻamaoni.O ona fa'amanuiaga e pei o le fa'aogaina o alaleo maualuga, malosi fa'alavelave fa'alavelave fa'alavelave, fa'asalalauga fa'amaumauga maualuga ma le saogalemu maualuga e fa'atupuina ai le tele o le atina'e o le COFDM.
Faatasi ai ma le faʻaauauina o le atinaʻeina o le faasaienisi ma tekinolosi, ua i ai le mafuaaga tatou te talitonu ai o le COFDM faiga faʻasalalau uaealesi o le a faia se sao sili atu ona taua i le lumanaʻi fesoʻotaʻiga uaealesi fanua.
4. Fa'ai'uga
Faʻavae i luga ole COFDM tekinolosi,IWAVE Feso'ota'igaua atiina ae se faasologa o meafaigaluega feaveai uaealesi, lea e masani foi ona faaaoga i nei fanua.O meafaigaluega na fausia e le matou kamupani e faʻatatau i aile felauaiga uaea ole mamaomaualuga faʻamalamalamaga vitio, aemaise lava i le faʻasalalauga faʻasalalau o drones, lea e maua ai le faʻaoga lelei mo le puipuiga o le gataifale, laveaʻi faʻalavelave faʻafuaseʻi, felauaiga atamai, ma isi.
Taimi meli: Sep-22-2023
