Nā ʻano ʻike lewa
ʻO nā ʻano nui o ka ʻike ʻana i ka lewa: ʻo ke ʻano kani kani ʻana o ka microwave radar, ka lewa a i ʻole ka rocket sounding, ka baluna kani, ka satellite remote sensing, a me LIDAR. ʻAʻole hiki ke ʻike i ka radar Microwave i nā ʻāpana liʻiliʻi no ka mea ʻo nā microwave i hoʻouna ʻia i ka lewa he mau millimeter a kenimika paha nā nalu, he mau hawewe lōʻihi a ʻaʻole hiki ke launa pū me nā mea liʻiliʻi, ʻoi aku ka nui o nā molekala.
ʻOi aku ke kumu kūʻai o ka lewa a me ka rocket sounding a ʻaʻole hiki ke nānā ʻia no ka manawa lōʻihi. ʻOiai ʻoi aku ka haʻahaʻa o ke kumukūʻai o nā baluna kani, ʻoi aku ka hopena o ka makani. Hiki ke ʻike i ka ʻike mamao mamao i ka lewa honua ma kahi ākea me ka hoʻohana ʻana i ka radar ma luna o ka papa, akā haʻahaʻa haʻahaʻa ka hoʻonā spatial. Hoʻohana ʻia ʻo Lidar no ka loaʻa ʻana o nā ʻāpana o ka lewa ma o ka hoʻokuʻu ʻana i kahi kukuna laser i ka lewa a me ka hoʻohana ʻana i ka pilina (ka hoʻopuehu a me ka absorption) ma waena o nā molekele lewa a i ʻole aerosol a me ka laser.
Ma muli o ke kuhikuhi ikaika, ka hawewe pōkole (micron wave) a me ka laulā pulse haiki o ka laser, a me ke kiʻekiʻe kiʻekiʻe o ka photodetector (photomultiplier tube, hoʻokahi photon detector), hiki i ka lidar ke hoʻokō i ka precision kiʻekiʻe a me ka ʻike kiʻekiʻe spatial a me ka ʻike kino o ka lewa. nā palena. Ma muli o kona kiʻekiʻe kiʻekiʻe, kiʻekiʻe spatial a me ka hoʻonā kino a me ka nānā mau ʻana, ke ulu wikiwiki nei ka LIDAR i ka ʻike ʻana i nā aerosol lewa, nā ao, nā mea haumia ea, ka mahana o ka lewa a me ka wikiwiki o ka makani.
Hōʻike ʻia nā ʻano o Lidar ma ka papa ma lalo:
Nā ʻano ʻike lewa
ʻO nā ʻano nui o ka ʻike ʻana i ka lewa: ʻo ke ʻano kani kani ʻana o ka microwave radar, ka lewa a i ʻole ka rocket sounding, ka baluna kani, ka satellite remote sensing, a me LIDAR. ʻAʻole hiki ke ʻike i ka radar Microwave i nā ʻāpana liʻiliʻi no ka mea ʻo nā microwave i hoʻouna ʻia i ka lewa he mau millimeter a kenimika paha nā nalu, he mau hawewe lōʻihi a ʻaʻole hiki ke launa pū me nā mea liʻiliʻi, ʻoi aku ka nui o nā molekala.
ʻOi aku ke kumu kūʻai o ka lewa a me ka rocket sounding a ʻaʻole hiki ke nānā ʻia no ka manawa lōʻihi. ʻOiai ʻoi aku ka haʻahaʻa o ke kumukūʻai o nā baluna kani, ʻoi aku ka hopena o ka makani. Hiki ke ʻike i ka ʻike mamao mamao i ka lewa honua ma kahi ākea me ka hoʻohana ʻana i ka radar ma luna o ka papa, akā haʻahaʻa haʻahaʻa ka hoʻonā spatial. Hoʻohana ʻia ʻo Lidar no ka loaʻa ʻana o nā ʻāpana o ka lewa ma o ka hoʻokuʻu ʻana i kahi kukuna laser i ka lewa a me ka hoʻohana ʻana i ka pilina (ka hoʻopuehu a me ka absorption) ma waena o nā molekele lewa a i ʻole aerosol a me ka laser.
Ma muli o ke kuhikuhi ikaika, ka hawewe pōkole (micron wave) a me ka laulā pulse haiki o ka laser, a me ke kiʻekiʻe kiʻekiʻe o ka photodetector (photomultiplier tube, hoʻokahi photon detector), hiki i ka lidar ke hoʻokō i ka precision kiʻekiʻe a me ka ʻike kiʻekiʻe spatial a me ka ʻike kino o ka lewa. nā palena. Ma muli o kona kiʻekiʻe kiʻekiʻe, kiʻekiʻe spatial a me ka hoʻonā kino a me ka nānā mau ʻana, ke ulu wikiwiki nei ka LIDAR i ka ʻike ʻana i nā aerosol lewa, nā ao, nā mea haumia ea, ka mahana o ka lewa a me ka wikiwiki o ka makani.
schematic diagram o ka loina o ke ao ana radar
Papa ao: kahi ʻōpua e lana ana i ka lewa; ʻO ke kukui i hoʻokuʻu ʻia: kahi kukuna i hui ʻia o kahi lōʻihi hawewe; Echo: ka hōʻailona backscattered i hana ʻia ma hope o ka hele ʻana o ka hoʻokuʻu ʻana ma ka ʻaoʻao o ke ao; Ke kumu aniani: ka ʻili like o ka ʻōnaehana telescope; ʻElemu ʻike: ke kiʻi uila i hoʻohana ʻia no ka loaʻa ʻana o ka hōʻailona echo nāwaliwali.
Ka papa hana o ka ʻōnaehana radar ana ao
Nā palena ʻenehana nui o Lumispot Tech o ke ana ʻana o ke ao Lidar
Ke Kii o ka Huahana
Palapala noi
Nā Hua Hana Kūlana Kūlana
Ka manawa hoʻouna: Mei-09-2023