Isingeniso
Kusukela ngasekupheleni kwawo-1960 nasekuqaleni kwawo-1970, izinhlelo eziningi zendabuko zokuthwebula izithombe zasemoyeni ziye zathathelwa indawo izinhlelo zokuzwa ezisebenzisa i-electro-optical kanye ne-electronic. Ngenkathi izithombe zasemoyeni zendabuko zisebenza ikakhulukazi kubude be-wavelength yokukhanya okubonakalayo, izinhlelo zokuzwa ezikude ezisebenzisa i-air conditioner zanamuhla nezisebenzisa i-air conditioner ezisebenzisa i-remote sensing zanamuhla zikhiqiza idatha yedijithali ehlanganisa ukukhanya okubonakalayo, i-infrared ekhanyayo, i-thermal infrared, kanye nezindawo ze-microwave spectral. Izindlela zokuhumusha ezibonakalayo zendabuko ekuthwebuleni izithombe zasemoyeni zisasiza. Noma kunjalo, ukuzwela okukude kuhlanganisa uhla olubanzi lwezinhlelo zokusebenza, kufaka phakathi imisebenzi eyengeziwe efana nokumodela kwezakhiwo eziqondiwe, ukulinganisa izinto nge-spectral, kanye nokuhlaziywa kwezithombe zedijithali ukuze kukhishwe ulwazi.
Ukuzwa kude, okubhekisela kuzo zonke izici zobuchwepheshe bokuthola okukude okungaxhumani, kuyindlela esebenzisa i-electromagnetism ukuthola, ukurekhoda nokukala izici zethagethi futhi incazelo yaqala ukuphakanyiswa ngawo-1950. Insimu yokuzwa kude kanye nokumapha, ihlukaniswe ngezindlela ezimbili zokuzwa: ukuzwa okusebenzayo kanye nokungashukumi, lapho ukuzwa kweLidar kusebenza khona, okukwazi ukusebenzisa amandla ayo ukukhipha ukukhanya kuthagethi futhi kutholakale ukukhanya okuvela kuyo.
Ukuzwa Nokusetshenziswa Kwe-Lidar Okusebenzayo
I-Lidar (ukutholwa kokukhanya kanye nobubanzi) ubuchwepheshe obulinganisa ibanga ngokusekelwe esikhathini sokukhipha nokwamukela izimpawu ze-laser. Ngezinye izikhathi i-Airborne LiDAR isetshenziswa ngokushintshana nokuskena kwe-airborne laser, imephu, noma i-LiDAR.
Leli ishadi lokugeleza elijwayelekile elibonisa izinyathelo eziyinhloko zokucubungula idatha yamaphuzu ngesikhathi sokusetshenziswa kwe-LiDAR. Ngemva kokuqoqa izixhumanisi ze-(x, y, z), ukuhlunga la maphuzu kungathuthukisa ukusebenza kahle kokunikezwa nokucubungula idatha. Ngaphezu kokucubungula kwejometri kwamaphuzu e-LiDAR, ulwazi lokuqina oluvela kumpendulo ye-LiDAR nalo luwusizo.
Kuzo zonke izinhlelo zokusebenza zokuzwa nokumapha kude, i-LiDAR inenzuzo ecacile yokuthola izilinganiso ezinembile kakhulu ngaphandle kokukhanya kwelanga neminye imiphumela yesimo sezulu. Uhlelo olujwayelekile lokuzwa kude luqukethe izingxenye ezimbili, i-laser rangefinder kanye ne-sensor yokulinganisa yokubeka, engalinganisa ngqo indawo yezwe ku-3D ngaphandle kokuphazamiseka kwejometri ngoba akukho zithombe ezihilelekile (umhlaba we-3D uthathwe esithombeni endizeni ye-2D).
EZINYE ZOMTHOMBO WETHU WE-LIDAR
Izinketho Zomthombo We-LiDAR Laser Ophephile Emehlweni Zenzwa
