Intshayelelo
Ukusukela ngasekupheleni kweminyaka yoo-1960 kunye nasekuqaleni kweminyaka yee-1970, uninzi lweenkqubo zokufota zasemoyeni zemveli zithathelwe indawo yi-airborne kunye ne-aerospace ye-electro-optical and electronic sensor systems. Ngelixa ifoto yasemoyeni yesiko isebenza ikakhulu kubude obubonakalayo bokukhanya, iisistim zale mihla zomoya kunye nezisekwe emhlabeni zivelisa idatha yedijithali egquma ukukhanya okubonakalayo, okubonakalayo kwe-infrared, infrared, kunye nemimandla ye-microwave spectral. Iindlela zesiNtu zokutolika ngokubonwayo kwiifoto zasemoyeni zisaluncedo. Sekunjalo, uluvo olukude lugubungela uluhlu olubanzi lwezicelo, kubandakanywa imisebenzi eyongezelelweyo efana nemodeli yethiyori yeepropati ekujoliswe kuzo, imilinganiselo ye-spectral yezinto, kunye nohlalutyo lomfanekiso wedijithali ukwenzela ukutsalwa kolwazi.
Uluvo olukude, olubhekiselele kuyo yonke imiba yokungaqhagamshelwanga kuluhlu olude lobuchule bokubhaqa, yindlela esebenzisa i-electromagnetism ukukhangela, ukurekhoda kunye nokulinganisa iimpawu zethagethi kwaye inkcazo yacetywa okokuqala ngo-1950s. Intsimi ye-remote sensing kunye nemephu, ihlulwe kwiindlela ze-2 zokubona: i-sensing esebenzayo kunye ne-passive, apho i-Lidar sensing iyasebenza, ikwazi ukusebenzisa amandla ayo ukuvelisa ukukhanya kwithagethi kwaye ibone ukukhanya okubonakaliswe kuyo.
Ukusebenza kweLidar Sensing kunye nesicelo
I-Lidar (ukubona ukukhanya kunye nokusuka) iteknoloji elinganisa umgama ngokusekelwe kwixesha lokukhutshwa kunye nokufumana iimpawu ze-laser. Ngamanye amaxesha i-Airborne LiDAR isetyenziswa ngokutshintshanayo kunye ne-laser ye-airborne scanning, imephu, okanye i-LiDAR.
Le yitshati eqhelekileyo ebonisa amanyathelo aphambili okusetyenzwa kwedatha ngexesha lokusetyenziswa kwe-LiDAR. Emva kokuqokelela (x, y, z) ulungelelwaniso, ukuhlela la manqaku kunokuphucula ukusebenza kakuhle konikezelo lwedatha kunye nokucubungula. Ukongeza kwi-geometric processing yamanqaku e-LiDAR, ulwazi olunzulu oluvela kwimpendulo ye-LiDAR nayo iluncedo.
Kuko konke ukuva okude kunye nosetyenziso lwemephu, i-LiDAR inenzuzo eyahlukileyo yokufumana imilinganiselo echanekileyo ngaphandle kokukhanya kwelanga kunye nezinye iziphumo zemozulu. Inkqubo eqhelekileyo yoluvo olukude iquka iinxalenye ezimbini, i-laser rangefinder kunye ne-sensor yokulinganisa yokubeka indawo, enokulinganisa ngokuthe ngqo indawo yejografi kwi-3D ngaphandle kokuphazamiseka kwejometri kuba akukho mfanekiso ubandakanyekayo (ihlabathi le-3D lifanekiselwa kwinqwelomoya ye-2D).
EZINYE UMTHOMBO WETHU LIDAR
I-Eye-ekhuselekileyo ye-LiDAR Laser Ukhetho loMthombo woluvo
