Njengoko iteknoloji yelaser isanda kwiindawo ezifana nokuhlela, unxibelelwano, ukuhamba, kunye nokubona kude, iindlela zokuguqula kunye nokufaka ikhowudi yemiqondiso yelaser nazo ziye zahluka kwaye zaphucuka. Ukuphucula amandla okulwa nokuphazamiseka, ukuchaneka kokuhlela, kunye nokusebenza kakuhle kokudluliselwa kwedatha, iinjineli ziye zaphuhlisa iindlela ezahlukeneyo zokufaka ikhowudi, kubandakanya iPrecision Repetition Frequency (PRF) Code, iVariable Pulse Interval Code, kunye nePulse Code Modulation (PCM).
Eli nqaku libonelela ngohlalutyo olunzulu lwezi ntlobo ze-laser encoding eziqhelekileyo ukukunceda uqonde imigaqo yazo yokusebenza, iimpawu zobugcisa, kunye neemeko zesicelo.
1. Ikhowudi yokuphindaphinda ngokuchanekileyo (iKhowudi yePRF)
①Umgaqo woBugcisa
Ikhowudi ye-PRF yindlela yokubhala ikhowudi ethumela imiqondiso ye-pulse kwi-frequency ephindaphindayo emiselweyo (umz., 10 kHz, 20 kHz). Kwiinkqubo zokulinganisa i-laser, i-pulse nganye ebuyiselweyo yahlulwe ngokusekelwe kwi-frequency yayo echanekileyo yokukhupha, elawulwa ngokuqinileyo yinkqubo.
②Ezona mpawu
Isakhiwo esilula kunye neendleko eziphantsi zokusetyenziswa
Ifanelekile kwiithagethi zokulinganisa ezikufutshane kunye neziphumo zokubonakalisa ukukhanya okuphezulu
Kulula ukuvumelanisa neenkqubo zewotshi ze-elektroniki zemveli
Ayisebenzi kakuhle kwiindawo ezintsonkothileyo okanye kwiimeko ezijolise kuzo ezininzi ngenxa yomngcipheko wokuba“i-echo enamaxabiso amaninzi"ukuphazamiseka
③Imizekelo yesicelo
Izixhobo zokulinganisa umgama nge-laser, izixhobo zokulinganisa umgama ezijolise kwindawo enye, iinkqubo zokuhlola imboni
2. Ikhowudi yeXesha lePulse eliGuqukayo (Ikhowudi yeXesha lePulse eliGuqukayo okanye eliGuqukayo)
①Umgaqo woBugcisa
Le ndlela yokufaka ikhowudi ilawula amaxesha aphakathi kwee-laser pulses ukuba abe ngangacwangciswanga okanye awe-pseudo-random (umz., kusetyenziswa i-pseudo-random sequence generator), endaweni yokuba alungiswe. Oku kungacwangciswanga kunceda ukwahlula imiqondiso yokubuya kunye nokunciphisa ukuphazamiseka kwe-multipath.
②Ezona mpawu
Amandla okulwa nokuphazamiseka, alungele ukuchongwa kwezinto ezijolise kuzo kwiindawo ezintsonkothileyo
Ithintela ngempumelelo ii-ghost echoes
Ubunzima obuphezulu bokucacisa ikhowudi, obufuna iiprosesa ezinamandla ngakumbi
Ifanelekile ukuchonga uluhlu oluchanekileyo nokuchonga iithagethi ezininzi
③Imizekelo yesicelo
Iinkqubo zeLiDAR, iinkqubo zokubeka esweni ukhuseleko lwe-counter-UAV/ukhuseleko, iinkqubo zokulinganisa i-laser yomkhosi kunye neenkqubo zokuchonga iithagethi
3. Ukuguqulwa kweKhowudi yePulse (iKhowudi yePCM)
①Umgaqo woBugcisa
I-PCM yindlela yedijithali yokuguqula apho imiqondiso ye-analog ithathwa khona iisampulu, ilinganiswe, kwaye ibhalwe ngendlela ye-binary. Kwiinkqubo zonxibelelwano lwe-laser, idatha ye-PCM ingathwalwa ngee-laser pulses ukuze kufezekiswe ukuhanjiswa kolwazi.
②Ezona mpawu
Uthumelo oluzinzileyo kunye nokumelana nengxolo enamandla
Uyakwazi ukudlulisa iintlobo ezahlukeneyo zolwazi, kubandakanya isandi, imiyalelo, kunye nedatha yesimo
Ifuna ulungelelwaniso lwewotshi ukuqinisekisa ukuguqulelwa kwekhowudi ngokufanelekileyo kwi-receiver
Ifuna ii-modulators kunye nee-demodulators ezisebenzayo kakhulu
③Imizekelo yesicelo
Izitishi zonxibelelwano ngelaser (umz., iinkqubo zonxibelelwano zeFree Space Optical), ulawulo olukude lwelaser lweemijukujelwa/izithuthi zasemoyeni, ukubuyiswa kwedatha kwiinkqubo ze-laser telemetry
4. Isiphelo
Njenge“ingqondo"kwiinkqubo ze-laser, iteknoloji yokufaka ikhowudi ye-laser imisela indlela ulwazi oludluliselwa ngayo kunye nendlela esebenza ngayo inkqubo. Ukusuka kwiikhowudi ze-PRF ezisisiseko ukuya kwi-modulation ye-PCM ephucukileyo, ukhetho kunye noyilo lwezicwangciso zokufaka ikhowudi kuye kwaba ngundoqo ekuphuculeni ukusebenza kwenkqubo ye-laser.
Ukukhetha indlela efanelekileyo yokufaka ikhowudi kufuna ukuqwalaselwa ngokupheleleyo kwemeko yesicelo, amanqanaba okuphazamiseka, inani leethagethi, kunye nokusetyenziswa kwamandla enkqubo. Umzekelo, ukuba injongo kukwakha inkqubo yeLiDAR yokwenziwa kwemodeli ye-3D yasezidolophini, ikhowudi yesithuba se-variable pulse enekhono elinamandla lokulwa nokubetha iyakhethwa. Kwizixhobo zokulinganisa umgama ezilula, ikhowudi ye-frequency yokuphindaphinda ngokuchanekileyo inokwanela.
Ixesha lokuthumela: Agasti-12-2025