Izindlela zokubona umkhathi
Izindlela eziyinhloko zokutholwa komkhathi yilezi: indlela yomsindo we-radar ye-microwave, indlela yomsindo we-airborne noma yerokhethi, ibhaluni elikhalayo, i-remote sensing yesathelayithi, kanye ne-LIDAR.I-radar ye-Microwave ayikwazi ukubona izinhlayiya ezincane ngenxa yokuthi ama-microwave athunyelwa emkhathini angamagagasi angamamilimitha noma amasentimitha, anobude bamaza amade futhi awakwazi ukuxhumana nezinhlayiya ezincane, ikakhulukazi ama-molecule ahlukahlukene.
Izindlela zokukhala emoyeni nezamarokhethi zibiza kakhulu futhi azikwazi ukubonwa isikhathi eside.Nakuba izindleko zamabhaluni anomsindo ziphansi, zithinteka kakhulu isivinini somoya.Inzwa yesathelayithi ingakwazi ukubona umkhathi womhlaba ngezinga elikhulu kusetshenziswa i-on-board radar, kodwa ukulungiswa kwendawo kuphansi.I-Lidar isetshenziselwa ukuthola amapharamitha womkhathi ngokukhipha i-laser beam emkhathini nokusebenzisa ukuxhumana (ukuhlakazeka nokumunca) phakathi kwama-molecule asemkhathini noma ama-aerosol kanye ne-laser.
Ngenxa yokuqondisa okuqinile, ubude begagasi obufushane (igagasi le-micron) kanye nobubanzi be-pulse obuncane be-laser, kanye nokuzwela okuphezulu kwe-photodetector (ishubhu le-photomultiplier, umtshina we-photon owodwa), i-lidar ingafinyelela ukunemba okuphezulu kanye nokutholwa kokucaca okuphezulu kwendawo kanye nesikhashana komkhathi. imingcele.Ngenxa yokunemba kwayo okuphezulu, ukulungiswa okuphezulu kwendawo kanye nesikhashana kanye nokuqapha okuqhubekayo, i-LIDAR ithuthuka ngokushesha ekutholeni ama-aerosols asemkhathini, amafu, ukungcola komoya, izinga lokushisa lomoya kanye nesivinini somoya.
Izinhlobo ze-Lidar ziboniswa kuthebula elilandelayo:
Izindlela zokubona umkhathi
Izindlela eziyinhloko zokutholwa komkhathi yilezi: indlela yomsindo we-radar ye-microwave, indlela yomsindo we-airborne noma yerokhethi, ibhaluni elikhalayo, i-remote sensing yesathelayithi, kanye ne-LIDAR.I-radar ye-Microwave ayikwazi ukubona izinhlayiya ezincane ngenxa yokuthi ama-microwave athunyelwa emkhathini angamagagasi angamamilimitha noma amasentimitha, anobude bamaza amade futhi awakwazi ukuxhumana nezinhlayiya ezincane, ikakhulukazi ama-molecule ahlukahlukene.
Izindlela zokukhala emoyeni nezamarokhethi zibiza kakhulu futhi azikwazi ukubonwa isikhathi eside.Nakuba izindleko zamabhaluni anomsindo ziphansi, zithinteka kakhulu isivinini somoya.Inzwa yesathelayithi ingakwazi ukubona umkhathi womhlaba ngezinga elikhulu kusetshenziswa i-on-board radar, kodwa ukulungiswa kwendawo kuphansi.I-Lidar isetshenziselwa ukuthola amapharamitha womkhathi ngokukhipha i-laser beam emkhathini nokusebenzisa ukuxhumana (ukuhlakazeka nokumunca) phakathi kwama-molecule asemkhathini noma ama-aerosol kanye ne-laser.
Ngenxa yokuqondisa okuqinile, ubude begagasi obufushane (igagasi le-micron) kanye nobubanzi be-pulse obuncane be-laser, kanye nokuzwela okuphezulu kwe-photodetector (ishubhu le-photomultiplier, umtshina we-photon owodwa), i-lidar ingafinyelela ukunemba okuphezulu kanye nokutholwa kokucaca okuphezulu kwendawo kanye nesikhashana komkhathi. imingcele.Ngenxa yokunemba kwayo okuphezulu, ukulungiswa okuphezulu kwendawo kanye nesikhashana kanye nokuqapha okuqhubekayo, i-LIDAR ithuthuka ngokushesha ekutholeni ama-aerosols asemkhathini, amafu, ukungcola komoya, izinga lokushisa lomoya kanye nesivinini somoya.
Umdwebo wohlelo lomgomo we-radar yokulinganisa ifu
Ungqimba lwamafu: ungqimba lwamafu oluntanta emoyeni;Ukukhanya okukhishiwe: i-beam ehlanganisiwe yobude obuthile bobude;I-Echo: isignali ehlakazekile ekhiqizwa ngemva kokudlula ungqimba lwamafu;Isisekelo sesibuko: indawo elinganayo yesistimu yesibonakude;Isici sokutholwa: idivayisi kagesi wesithombe esetshenziselwa ukwamukela isignali ye-echo ebuthaka.
Uhlaka olusebenzayo lwesistimu ye-radar yokukala kwamafu
I-Lumispot Tech amapharamitha wobuchwepheshe ayinhloko wesilinganiso samafu i-Lidar
Isithombe Somkhiqizo
Isicelo
Umdwebo Wesimo Semikhiqizo Esebenzayo
Isikhathi sokuthumela: May-09-2023