Nhanganyaya
Kubva mukupera kwema1960 uye kutanga kwema1970, mazhinji echinyakare emuchadenga mafoto masisitimu akatsiviwa nemhepo uye aerospace electro-optical uye electronic sensor system. Nepo zvechinyakare zvemuchadenga kutora mafoto kunoshanda zvakanyanya muinooneka-mwenje wavelength, yemazuva ano inofambiswa nemhepo uye pasi-yakavakirwa kure kure yekunzwa masisitimu anoburitsa data redhijitari rinovhara mwenje unooneka, inoratidzwa infrared, thermal infrared, uye microwave spectral nzvimbo. Nzira dzechinyakare dzekududzira kwekuona mukutora mifananidzo mumhepo dzichiri kubatsira. Zvakadaro, kuona kure kunovhara huwandu hwakakura hwemashandisirwo, zvinosanganisira zvimwe zviitiko senge theoretical modhi yezvinotangwa zvivakwa, spectral zviyero zvezvinhu, uye yedhijitari yemifananidzo yekuongorora yekubvisa ruzivo.
Remote sensing, iyo inoreva kune ese maficha easingabatane-refu-refu yekuona maitiro, inzira inoshandisa electromagnetism kuona, kurekodha uye kuyera maitiro echinangwa uye tsananguro yakatanga kutaurwa muma1950s. Munda wekunzwa kure uye mepu, wakakamurwa kuva 2 sensing modes: inoshanda uye passive sensing, iyo Lidar sensing inoshanda, inokwanisa kushandisa simba rayo kubudisa chiedza kune chinangwa uye kuona chiedza chinoratidzwa kubva kwachiri.
Active Lidar Sensing uye Kushandisa
Lidar (chiedza chekuona uye kubva) itekinoroji inoyera chinhambwe zvichienderana nenguva yekuburitsa uye kugamuchira masaini elaser. Dzimwe nguva Airborne LiDAR inoshandiswa zvakasiyana-siyana neairborne laser scanning, mepu, kana LiDAR.
Iyi ndiyo yakajairika kuyerera inoratidza nhanho huru dzepoint data kugadzirisa panguva yekushandiswa kweLiDAR. Mushure mekuunganidza (x, y, z) marongero, kuronga aya mapoinzi kunogona kuvandudza kugona kwekupa data uye kugadzirisa. Pamusoro peiyo geometric process yeLiDAR mapoinzi, iyo yekusimba ruzivo kubva kuLiDAR mhinduro inobatsira zvakare.
Mune ese ari kure ekuona uye mepu maapplication, LiDAR ine mukana wakasiyana wekuwana zviyero zvakaringana zvakasununguka kubva kuchiedza chezuva uye mamwe mamiriro ekunze. Iyo yakajairwa kure inonzwa sisitimu ine zvikamu zviviri, laser rangefinder uye kuyerwa sensor yekumisikidza, iyo inogona kuyera zvakananga nharaunda mu 3D pasina geometric kukanganisa nekuti hapana imaging inobatanidzwa (nyika ye3D inofananidzirwa mundege ye2D).
DZIMWE YEDU LIDAR SOURCE
Ziso-rakachengeteka LiDAR Laser Source Sarudzo dze sensor
