Hoʻolauna
Mai ka hopena o nā makahiki 1960 a me ka hoʻomaka ʻana o nā makahiki 1970, ua pani ʻia ka hapa nui o nā ʻōnaehana kiʻi lewa kuʻuna e nā ʻōnaehana sensor electro-optical a me nā ʻōnaehana sensor uila ea a me ka aerospace. ʻOiai ke hana nui nei nā kiʻi lewa kuʻuna ma ka nalu kukui ʻike ʻia, ʻo nā ʻōnaehana ʻike mamao ea a me ka honua hou e hana i ka ʻikepili kikohoʻe e uhi ana i ka mālamalama ʻike ʻia, ka infrared i hōʻike ʻia, ka infrared thermal, a me nā wahi spectral microwave. He kōkua mau nā ʻano wehewehe ʻike kuʻuna i ke kiʻi lewa. Eia nō naʻe, uhi ka ʻike mamao i kahi ākea o nā noi, me nā hana hou e like me ke kumu hoʻohālike theoretical o nā waiwai pahuhopu, nā ana spectral o nā mea, a me ka nānā ʻana i nā kiʻi kikohoʻe no ka unuhi ʻike.
ʻO ka ʻike mamao, e pili ana i nā ʻano āpau o nā ʻenehana ʻike lōʻihi ʻaʻole pili, he ʻano hana ia e hoʻohana ana i ka electromagnetism e ʻike, hoʻopaʻa a ana i nā ʻano o kahi pahuhopu a ua hāpai mua ʻia ka wehewehe ʻana i nā makahiki 1950. ʻO ke kahua o ka ʻike mamao a me ka palapala ʻāina, ua māhele ʻia i 2 mau ʻano ʻike: ʻike hana a me ka ʻike passive, kahi e hana ai ʻo Lidar sensing, hiki ke hoʻohana i kona ikehu ponoʻī e hoʻokuʻu i ka mālamalama i ka pahuhopu a ʻike i ka mālamalama i hōʻike ʻia mai ia mea.
Ka ʻIke ʻana a me ka Hoʻohana ʻana o Lidar Active
ʻO Lidar (ʻike mālamalama a me ka laulā ʻana) kahi ʻenehana e ana i ka mamao ma muli o ka manawa o ka hoʻopuka ʻana a me ka loaʻa ʻana o nā hōʻailona laser. I kekahi manawa hoʻohana like ʻia ʻo Airborne LiDAR me ka airborne laser scanning, mapping, a i ʻole LiDAR.
He pakuhi kahe maʻamau kēia e hōʻike ana i nā ʻanuʻu nui o ka hana ʻikepili kiko i ka wā o ka hoʻohana ʻana iā LiDAR. Ma hope o ka hōʻiliʻili ʻana i nā hoʻonohonoho (x, y, z), hiki i ka hoʻokaʻawale ʻana i kēia mau kiko ke hoʻomaikaʻi i ka pono o ka hōʻike ʻana a me ka hana ʻana i ka ʻikepili. Ma waho aʻe o ka hana geometric o nā kiko LiDAR, he mea pono nō hoʻi ka ʻike ikaika mai ka manaʻo LiDAR.
Ma nā noi ʻike mamao a me nā palapala ʻāina āpau, loaʻa iā LiDAR ka pono kūikawā o ka loaʻa ʻana o nā ana pololei me ke kūʻokoʻa o ka lā a me nā hopena ʻē aʻe o ke aniau. ʻO kahi ʻōnaehana ʻike mamao maʻamau he ʻelua ʻāpana, kahi mea ʻike laulā laser a me kahi mea ʻike ana no ke kau ʻana, hiki ke ana pololei i ke kaiapuni honua ma 3D me ka ʻole o ka hoʻopilikia geometric no ka mea ʻaʻohe kiʻi i komo (ua kiʻi ʻia ke ao 3D ma ka mokulele 2D).
KEKAHI O KO MĀKOU KUMUWAIWAI LIDAR
Nā Koho Kumu Laser LiDAR Palekana Maka no ka Sensor
