Mawu Oyamba
Kuyambira kumapeto kwa zaka za m'ma 1960 ndi koyambirira kwa zaka za m'ma 1970, makina ambiri ojambulira am'mlengalenga adasinthidwa ndi ma airborne ndi aerospace electro-optical and electronic sensor systems. Ngakhale kujambula kwamwambo kumagwira ntchito makamaka pamawonekedwe a kuwala kowoneka bwino, makina amakono owuluka mumlengalenga komanso pansi amatulutsa deta ya digito yomwe imaphimba kuwala kowoneka bwino, madera owoneka bwino a infrared, thermal infrared, ndi microwave spectral. Njira zachikhalidwe zotanthauzira zowoneka bwino pazithunzi zapamlengalenga ndizothandizabe. Komabe, kuyang'anira patali kumagwira ntchito zosiyanasiyana, kuphatikiza zochitika zina monga kutengera mawonekedwe azinthu zomwe mukufuna, kuyeza kwazinthu, komanso kusanthula kwazithunzi za digito kuti muchotse zidziwitso.
Kuzindikira kwakutali, komwe kumatanthawuza mbali zonse za njira zodziwikiratu zakutali, ndi njira yomwe imagwiritsa ntchito electromagnetism kuti izindikire, kulemba ndi kuyeza mawonekedwe a chandamale ndipo tanthauzo lidaperekedwa koyamba mu 1950s. Munda wa kuzindikira kwakutali ndi mapu, umagawidwa m'njira za 2 zowonera: zogwira ntchito komanso zosagwira ntchito, zomwe Lidar sensing imagwira ntchito, imatha kugwiritsa ntchito mphamvu zake kuti ipereke kuwala kwa chandamale ndikuwona kuwala komwe kumawonekera kuchokera pamenepo.
Active Lidar Sensing ndi Kugwiritsa Ntchito
Lidar (kuzindikira kuwala ndi kuyambira) ndi teknoloji yomwe imayesa mtunda kutengera nthawi yotulutsa ndi kulandira zizindikiro za laser. Nthawi zina LiDAR ya Airborne imagwiritsidwa ntchito mosinthana ndi kusanthula kwa laser, mapu, kapena LiDAR.
Ichi ndi tchati chowoneka bwino chomwe chikuwonetsa masitepe akulu pakukonza ma data pakugwiritsa ntchito LiDAR. Mukatolera (x, y, z) ma coordinates, kusanja mfundozi kumatha kupititsa patsogolo luso la kupereka ndi kukonza deta. Kuphatikiza pakusintha kwa geometric kwa mfundo za LiDAR, chidziwitso champhamvu kuchokera ku mayankho a LiDAR ndiwothandizanso.
M'mapulogalamu onse akutali ndi mapu, LiDAR ili ndi mwayi wapadera wopeza miyeso yolondola mosadalira kuwala kwa dzuwa ndi nyengo zina. Makina owonera patali amakhala ndi magawo awiri, laser rangefinder ndi sensor yoyezera poyikira, yomwe imatha kuyeza molunjika chilengedwe cha 3D popanda kupotoza kwa geometric chifukwa palibe kujambula komwe kumakhudzidwa (dziko la 3D likujambulidwa mundege ya 2D).
ZINTHU ZINA ZA LIDAR SOURCE
Zosankha zotetezedwa ndi maso za LiDAR Laser Source for sensor
