Piav qhia luv luv txog kev siv tshuab nrhiav pom ntawm LiDAR

Piav qhia luv luv txog kev siv tshuab nrhiav pom ntawm LiDAR
Lidar (Kev Tshawb Pom Lub Teeb thiab Kev Nrug) siv cov nqi deb ntawm cov huab / pixels ntawm lub hom phiaj los kwv yees cov duab peb-seem (3D) ntawm cov hom phiaj, thiab tau tsim kho sai hauv kev pom ib puag ncig tsis muaj qauv xws li kev tsav tsheb tsis siv neeg, kev tsav tsheb robot, kev kos duab av, thiab kev tshawb nrhiav chaw deb.
Tsis zoo li cov thev naus laus zis passive 3D imaging uas tsuas yog tuaj yeem rov qab tau cov ntaub ntawv 3D ntawm cov teeb pom kev zoo ib puag ncig, LiDAR tuaj yeem tau txais cov ntaub ntawv 3D ntawm ib puag ncig thiab ua ke cov algorithms xws li cov ntsiab lus huab tsim, suab nrov lim, kev sau npe sib koom ua ke, thiab kev piav qhia txog cov yam ntxwv kom ua tiav kev nkag siab qhov chaw. Raws li cov txheej txheem nrhiav pom lub teeb sib txawv, LiDAR uas twb muaj lawm feem ntau tuaj yeem faib ua kev nrhiav pom ncaj qha thiab kev nrhiav pom sib xws.
Kev ntes ncaj qha siv lub teeb pulsed thiab ntes qhov echo intensity ntawm lub hom phiaj los ntawm lub photodetector. Ib qho incoherent LiDAR yog lub sijhawm-ntawm-dav hlau (TOF) ntau yam thev naus laus zis uas dominates ntau daim ntawv thov vim nws cov khoom siv kho vajtse laus thiab cov txheej txheem ua cov teeb liab. Txawm li cas los xij, qhov ntau thiab tsawg ntawm kev ntes thiab kev daws teeb meem ntawm TOF LiDAR raug txwv los ntawm kev ua tau zoo ntawmlub tshuab ntes duabthiab lub zog ntawm qhov kawg ntawmlub tshuab laser pulsed, thiab nws lub teeb liab echo kuj tseem yuav raug cuam tshuam los ntawm lub hnub ci lossis lwm lub radar systemlasercov teeb.
Nyob rau hauv kev sib piv, kev tshawb pom sib xws siv cov thev naus laus zis sib xyaw ua ke ntawm lub teeb echo thiab lub teeb oscillator hauv zos tuaj yeem tiv taus kev cuam tshuam ntawm lub teeb ib puag ncig thiab txhim kho qhov sib piv ntawm lub teeb liab rau lub suab nrov. LiDAR ib txwm muaj feem ntau vam khom lub zog, 3D coordinates, lossis velocity rau kev thaij duab, thiab qhov tsis txaus ntawm cov ntaub ntawv ua rau muaj kev lees paub thiab kev faib tawm tsawg ntawm cov LiDAR no. Tshwj xeeb tshaj yog rau cov hom phiaj nrog ntau yam qauv, muaj kev tsis meej pem hauv kev txiav txim siab qhov huab ntawm lub hom phiaj, ua rau muaj kev tsis paub meej hauv kev lees paub ntawm 3D duab ntawm lub hom phiaj.
Ib txoj kev ua tau yog siv cov khoom siv polarization ntawm lub teeb, uas tuaj yeem txhim kho qhov tseeb ntawm cov ntsiab lus ntawm lub hom phiaj / pixels. Los ntawm kev tshuaj xyuas kev sib cuam tshuam ntawm lub teeb polarized thiab cov ntaub ntawv, cov qauv thiab cov ntaub ntawv sib xyaw ntawm lub hom phiaj tuaj yeem xav tau. Polarization coherent LiDAR sib xyaw ua ke cov lus qhia txiav los ntawm ntau yam kev qhuab qhia xws li optics, mechanics, kev tswj hwm, thiab cov ntaub ntawv hluav taws xob, npog cov ntsiab lus tseem ceeb xws li kev tshawb pom cov ntaub ntawv, beam scanning, thiab polarization imaging.