Uhlalutyo lweentlobo ze-Laser Encoding: iMigaqo yoBugcisa kunye nezicelo zeKhowudi yokuphindaphinda ngokuchaneka, iKhowudi yeSithuba sePulse eguquguqukayo, kunye neKhowudi yePCM.

Njengoko itekhnoloji yelaser isiya isanda kwimimandla efana nokusukela, unxibelelwano, ukuhamba, kunye nokuziva ukude, iindlela zokumodareyitha kunye neekhowudi zemiqondiso yelaser nazo ziye zahluka kwaye zaphucuka. Ukuphucula amandla okuchasana nokuphazamiseka, ukuchaneka kokuchaneka, kunye nokusebenza kakuhle kokuhanjiswa kwedatha, iinjineli ziye zaphuhlisa iindlela ezahlukeneyo zokufaka iikhowudi, kubandakanywa iKhowudi yokuPhindwa kwePrecision Frequency (PRF), iKhowudi yeSithuba sePulse, kunye nePulse Code Modulation (PCM).

Eli nqaku libonelela ngohlalutyo olunzulu kwezi ntlobo ze-laser zeekhowudi zokukunceda uqonde imigaqo yazo yokusebenza, iimpawu zobugcisa, kunye neemeko zesicelo.

1. IKhowudi yokuPhindwa okuchanekileyo (iKhowudi yePRF)

①Umgaqo wobugcisa
Ikhowudi ye-PRF yindlela ye-encoding ehambisa iimpawu ze-pulse kwi-fixed repetition frequency (umz., 10 kHz, 20 kHz). Kwiinkqubo zokutshintsha kwe-laser, i-pulse nganye ebuyisiweyo iyahlukaniswa ngokusekelwe kwi-frequency ephumayo echanekileyo, elawulwa ngokuqinileyo yinkqubo.

②Ezona mpawu

Isakhiwo esilula kunye neendleko eziphantsi zokuphunyezwa

Ifanele imilinganiselo yoluhlu olufutshane kunye neethagethi ezibonisa ukubonakalisa okuphezulu

Kulula ukulungelelanisa kunye neenkqubo zewotshi ze-elektroniki zemveli

Ukungasebenzi kancinci kwiindawo ezintsonkothileyo okanye iimeko ekujoliswe kuzo ezininzi ngenxa yengozi“I-echo yamaxabiso amaninzi”ukuphazamiseka

③Iimeko zeSicelo
I-Laser rangefinders, izixhobo zokulinganisa umgama ekujoliswe kuzo omnye, iinkqubo zokuhlola iifektri

2. IKhowudi yeSithuba sePulse eguquguqukayo (iKhowudi yeSithuba sePulse eRandom okanye eGuquguqukayo)

①Umgaqo wobugcisa
Le ndlela ye-encoding ilawula izithuba zexesha phakathi kwe-laser pulses ukuba i-random okanye i-pseudo-random (umzekelo, ukusebenzisa i-pseudo-random ijenereyitha yolandelelwano), kunokuba ilungiswe. Oku kungakhethi cala kunceda ukwahlula imiqondiso yokubuya kunye nokunciphisa uphazamiseko lweendlela ezininzi.

②Ezona mpawu

Ikhono elinamandla lokuchasana nokuphazamiseka, lilungele ukuchongwa okujoliswe kuyo kwiindawo ezinzima

Icinezela ngokufanelekileyo i-echoes yesiporho

Ubunzima bokwenza iikhowudi ephezulu, obufuna iiprosesa ezinamandla ngakumbi

Ifanelekile ukuchaneka okuphezulu kunye nokufunyanwa kwezinto ezininzi ekujoliswe kuzo

③Iimeko zeSicelo
Iinkqubo ze-LiDAR, i-counter-UAV / iinkqubo zokubeka iliso zokhuseleko, i-laser yempi kunye neenkqubo zokuchongwa ekujoliswe kuzo

3. IKhowudi yePulse Modulation (PCM Code)

①Umgaqo wobugcisa
I-PCM yindlela yokumodareyitha yedijithali apho imiqondiso ye-analog ithathwa iisampulu, ilinganiswe ngokobungakanani, kwaye ifakwe kwikhowudi yokubini. Kwiinkqubo zonxibelelwano nge-laser, idatha ye-PCM inokuqhutywa nge-laser pulses ukuphumeza ukuhanjiswa kolwazi.

②Ezona mpawu

Ukuhanjiswa okuzinzileyo kunye nokumelana nesandi esinamandla

Iyakwazi ukusasaza iintlobo ezahlukeneyo zolwazi, kubandakanya iaudio, imiyalelo, kunye nedatha yobume

Ifuna ungqamaniso lwewotshi ukuqinisekisa ukubhalwa kweekhowudi ngokufanelekileyo kumamkeli

Ifuna iimodyuli ezisebenza kakhulu kunye nee-demodulators

③Iimeko zeSicelo
Iitheminali zonxibelelwano lweLaser (umzekelo, iisistim zonxibelelwano zeSithuba saMahala), ulawulo olukude lwelaser kwimijukujelwa/isiphekepheke, ukubuyiswa kwedatha kwiinkqubo ze-laser telemetry

4. Isiphelo

Njenge“ingqondo”yeenkqubo zelaser, itekhnoloji yokufaka ikhowudi yelaser imisela ukuba ulwazi lusasazwa njani kwaye lusebenza ngokukuko kangakanani na. Ukusuka kwiikhowudi ezisisiseko zePRF ukuya kumodareyitha ophambili wePCM, ukhetho kunye noyilo lwezikimu ze-encoding ziye zaba ngundoqo ekuphuculeni ukusebenza kwenkqubo yelaser.

Ukukhetha indlela efanelekileyo yokufaka ikhowudi kufuna ingqwalasela ebanzi yemeko yesicelo, amanqanaba okuphazamiseka, inani leethagethi, kunye nokusetyenziswa kwamandla enkqubo. Ngokomzekelo, ukuba injongo kukwakha inkqubo ye-LiDAR yemodeli ye-3D yasezidolophini, ikhowudi yekhefu ye-pulse eguquguqukayo enegunya elinamandla lokulwa ne-jamming iyakhethwa. Kwizixhobo ezilula zokulinganisa umgama, ikhowudi yophindaphindo oluchanekileyo inokwanela.