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Idenye aha na mgbasa ozi na-elekọta mmadụ maka post ozugbo
Ihe mmetụta ikuku na-egbu egbuEnwere ike ijide isi ihe ndị akọwapụtara site na ogwe aka Laser, nke a na-akpọkarị nha, ma ọ bụ dekọọ akara zuru oke, na-akpọ oge dị ka 1 ns (nke na-ekpuchi ihe dị ka 1 ns). A na-ejikarị Lidar skidar na oke ohia, mgbe ị na-agbaghachi Lidar nwere ngwa sara mbara dị iche iche. Edemede a na-ekwu isiokwu dị iche iche na-ekwu na ojiji ya. N'isiakwụkwọ a, anyị ga-ekpuchi ọtụtụ isiokwu isiokwu gbasara Lidar, gụnyere ihe ndị bụ isi, otu esi arụ ọrụ, usoro ya, na akụrụngwa ya.
Ihe ndị dị mkpa nke Lidar
Usoro lidar nke dabere na-eji lasers na-efe efe n'etiti 500-600 nm, ebe ikuku na-arụ ọrụ na-eji lashers na-efegharị ogologo oge, sitere na 1000-1600 nm. Usoro ikuku na-agụnye ikuku na-agụgharị na-agụnye nyocha laser, otu maka ịlele (Ngalaba Ngalaba), na sistemụ maka njikwa, nlekota, na Ndekọ. Ọ gụnyekwa usoro ọnọdụ ụwa niile (DGPS) na ngalaba ihe ọmụmụ (IMU), na-ekenyekarị otu usoro a maara dị ka ọnọdụ na usoro nhazi. Usoro a na-enye ọnọdụ dị iche iche (lotitude, na ịdị elu) na usoro (mpịakọta, olulu, na isi) data.
Usoro nke ihe laser na-enyocha mpaghara nwere ike ịdị iche, gụnyere Zigzag, myiri, ma ọ bụ n'okporo ụzọ elliptical. Njikọ nke data DGPS na IMU, yana data mmezi na ịrị elu na-arịwanye elu, na-enye usoro usoro iji mezie nke ọma. A na-ekenyekwa isi ihe ndị a (x, y, y) na usoro nhazi ala na-eji usoro ala ala nke 1984 (WGS84).
Kedu ka lidaIme MkpaNa-arụ ọrụ? Kọwaa n'ụzọ dị mfe
Usoro lidar na-asats ngwa ngwa laser splses na-eche ihe ma ọ bụ elu.
Onye laser Puls na-egosi ebumnuche ma laghachi na ihe mmetụta LIDAR.
Ihe mmetụta ahụ na-ejikarị oge ọ bụla ọ na-ewe maka ọ bụla iji mee njem na azụ.
Iji ọsọ nke ọkụ na oge njem, a na-agbakọ ebe a na-ahụ anya.
Ejikọtara ya na ọnọdụ na data usoro nke sitere na GPS na IMU sensọ, onye nhazi atọ na-ahazi nke ndị na-echepụta laser na-ekpebisi ike.
Nke a na - ebute igwe ojii nke atọ na - anọchite anya ala ma ọ bụ ihe.
Ụkpụrụ anụ ahụ nke Lidar
Sistem LIDAR na-eji ụdị abụọ dị larịị abụọ: pululd na ebili mmiri na-aga n'ihu. Na-arụ ọrụ Luldar na-arụ ọrụ site na izipu obere ọkụkọ wee tụọ oge ọ na-ewe ihe a na-eme njem na ịlaghachi onye na-anabata ya. Ntughari nke oge njem a na-enyere aka ikpebi anya na ebumnuche ahụ. E gosipụtara ihe atụ dị na eserese ebe amplitudes nke akara ọkụ na - ebugharị (na) na enweta akara ọkụ (a). Ihe ndị a na-ejikarị na usoro a na-emetụta ọsọ nke ọkụ (c) na anya na lekwasịrị anya (R), na-enye ohere ịgbakọ ọnụego dabere na ogologo oge ịlaghachi.
Oge nloghachi na usoro ebili mmiri zuru oke site na iji lida.
Usoro ikuku na-ahụkarị.
Usoro nha ahụ na Lidar, nke na-echeta ma nchọpụta na njirimara nke ebumnuche ahụ, bụ ọkọlọtọ lidar. A na-emegharị ihe ndị a site na nhata radar ma bụrụ ihe dị mkpa na nghọta etu sistemụ si arụ ọrụ na-agbakọ ụzọ. Ọ na-akọwa mmekọrịta dị n'etiti ike mgbama ebugharị (PT) na ike nke mgbama (pr). N'ụzọ doro anya, ntinye aka na-enyere aka ịkọwapụta ọkụ a na-alọghachi na nnata mgbe ị tụgharịa uche na ebumnuche ahụ, nke dị oke mkpa maka ịchọpụta ihe dị anya na imepụta maapụ ziri ezi. Mmekọrịta a na-eburu n'uche ihe ndị dị ka ọnụ ahịa dị ka ebe dị anya n'ihi anya na mmekọrịta ya na mbara igwe.
Ngwa nke LIDAR
Ụlọ ndị dịpụrụ adịpụ nwere ọtụtụ ngwa ndị gafere mpaghara dị iche iche:
Odị elu ala ala na ntanetị maka ịmepụta ụdị mmiri digital dị elu (mmiri).
Oke ọhịa na ahịhịa ahịhịa na-amụ akwụkwọ osisi komay na biomass.
Oke Osimiri na Shorolenine maka nlekota iron na mgbanwe nke oke osimiri.
Na nhazi Nkịtị na akụrụngwa, gụnyere ụlọ na netwọọntagbọ njem.
Ihe omumu ihe omumu na akwukwo obodo nke saịtị na nka.
Nyocha GoAlogium na Ngwuputa maka njirimara elu na arụmọrụ.
Kpamkpam ụgbọ ala na nchọpụta overstacle.
Ànyị na-achọpụta mbara ụwa, dị ka opịpịa elu nke Mars.
Chọrọ ịghasa?
LIDANRS:
Ndepụta akwụkwọ akụkọ LIDAR na sọftụwia n'efu n'okpuru n'okpuru ebe data.
1.Mepee Topographyhttp://www.ophoptoptoptor.org
2.USGS Earth Explorerhttp://earthexplorer.usgs.gov
3.United States Integagncyhttps://poast.noaa.gov/ interpotory /
4.National Oceabic na ikuku nchịkwa (NOAA)Coasthts: //www.coab.nov/dovaiewiwer/#
5.Wikipedia lidarHTTPS://en.wikipedia.org/wiki/naital_lidar_Dataset_tenid_states)
6.Lidar n'ịntanetịhttp://www.lidar-online.com
7.Ulo Obodo-Neonhttp://www.neniness.org/data-resources/DET-Data/Data
8.LIDAR Data maka Northern Spainhttp://b5m.gipizkoa.net/url5000/en/g_22485/publi&ryhazlidar
9.LIDAR Data maka United Kingdomhttp://ctalalogog.CEDA.AC.UK/ /? IHE BACK = OB & ID = 8049, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051, 8051
Free sọftụwia na-akwụghị ụgwọ:
1.Chọrọ ellivi. http://bcall.geology.ISU.EDU/ Envitools.STML
2.Fugriviewer(maka lidar na data ndị ọzọ na-efe efe) http://www.fursoniewer.com/
3.Funt / LDV(Vandar Data, Ntugharị
4.Las Ngwaọrụ(Koodu na sọftụwia maka ịgụ na ide LAS Fi) http: // www.cs.unc.URUTUBSGY/LUSTOOLS/
5.Lasiet(Otu usoro Utililis maka Visual na ntughari LAS Fi) http://home.iitk.acblohani/lasuety.html
6.Liblas(C / C ++ ọba akwụkwọ maka ịgụ / na-ede usoro) http://www.liblas.org/
7.Mcc-lidar(Ọtụtụ curvaree classisiri Classi fi ction maka Lidar) http: // pospider.net/projects/mclidar/
8.Mars freeview(Nkiri nke Vadar nke Dadar) http://www.merrick.com/geossic/software-products/mars-soft
9.Zuru oke nyocha(Mepee ngwanrọ nke nhazi na ile anya igwe ojii na ebili mmiri na ebili mmiri) http://issuurcefor.Net/
10.Mariker ojii (A set of software tools for LiDAR point cloud visualiza-tion, editing, filtering, 3D building modeling, and statistical analysis in forestry/ vegetation applications. Contact Dr. Cheng Wang at wangcheng@radi.ac.cn)
11.Onye na-agụ ngwa ngwa(Nlele nke LIDP Points Clound Words) Enwere ike ịchọta nlele nke igwe ojii) nke abụọ/download ngwaọrụ ọzọ site na websaịtị ngwa ngwa na http://opentopo.sds/listtools/listtools/listtool/listtool/sdsc.
Inabata
- Isiokwu a tinyechara nyocha site na "LIDIDEM na ngwa" site na Vinícius Guimarães, 2020. Ederede zuru ezuEbe a.
- Ndepụta ndepụta zuru oke na nkọwa zuru ezu banyere isi mmalite data Lidar na software na-enye ihe dị mkpa maka ndị ọkachamara na ndị nyocha na nyocha nke imepụta na nyocha nke ime obodo.
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Oge post: Apr-16-2024