Radar

Hōʻike ka ʻikepili ulia ma mua o 76% o nā pōʻino i kumu wale ʻia e ka hewa kanaka;a ma ka 94% o nā ulia pōpilikia, ua komo ka hewa kanaka.Ua lako ʻia ʻo ADAS (Advanced Driver Assistance Systems) me nā mea ʻike radar, hiki ke kākoʻo maikaʻi i nā hana holoʻokoʻa o ka hoʻokele kaʻa ʻole.ʻOiaʻiʻo, pono e wehewehe ma aneʻi, ua kapa ʻia ʻo RADAR Radio Detection And Ranging, kahi e hoʻohana ai i nā hawewe lekiō e ʻike a huli i nā mea.

Hoʻohana maʻamau nā ʻōnaehana radar o kēia manawa i 24 GHz a i ʻole 77 GHz mau alapine hana.Aia ka pono o 77GHz i kona pololei kiʻekiʻe o ke ana ʻana a me ke ana wikiwiki, ʻoi aku ka maikaʻi o ka hoʻonā ʻana i ka kihi ākea, a me ka leo antenna liʻiliʻi, a ʻoi aku ka liʻiliʻi o ka hōʻailona.

Hoʻohana pinepine ʻia nā radar pōkole e hoʻololi i nā mea ʻike kani ultrasonic a kākoʻo i nā pae kiʻekiʻe o ka hoʻokele autonomous.No kēia hopena, e hoʻokomo ʻia nā mea ʻike ma kēlā me kēia kihi o ke kaʻa, a e kau ʻia kahi mea nānā i mua no ka ʻike lōʻihi ma ke alo o ke kaʻa.I loko o ka ʻōnaehana radar piha piha 360° o ke kino kaʻa, e hoʻokomo ʻia nā mea ʻike hou ma waena o nā ʻaoʻao ʻelua o ke kino kaʻa.

ʻO ke kūpono, e hoʻohana kēia mau mea ʻike radar i ka band frequency 79GHz a me ka bandwidth transmission 4Ghz.Eia nō naʻe, ʻo ka maʻamau o ka hoʻouna ʻana i ka hōʻailona hōʻailona honua i kēia manawa e ʻae wale i ka bandwidth 1GHz ma ke kahawai 77GHz.I kēia mau lā, ʻo ka wehewehe kumu o ka radar MMIC (monolithic microwave integrated circuit) ʻo "3 transmitting channels (TX) a me 4 receiving channels (RX) i hoʻohui ʻia ma kahi kaapuni hoʻokahi".

ʻO kahi ʻōnaehana kōkua kaʻa e hiki ke hōʻoiaʻiʻo iā L3 a ma luna o nā hana hoʻokele kaʻa ʻole e pono ai ʻekolu mau ʻōnaehana sensor: kamera, radar a me ka ʻike laser.Pono e loaʻa kekahi mau mea ʻike o kēlā me kēia ʻano, e puʻunaue ʻia ma nā kūlana like ʻole o ke kaʻa, a hana pū.ʻOiai ke loaʻa nei ka ʻenehana semiconductor pono a me ka ʻenehana hoʻomohala ʻenehana a me ka radar sensor hoʻomohala, ʻo ka hoʻomohala ʻana i nā ʻōnaehana lidar ka mea nui loa a paʻa ʻole ka paʻakikī e pili ana i nā pilikia ʻenehana a me nā ʻoihana.