Kaiwhakarerekētanga whatu siliconmō te FMCW
E mōhio ana tātou katoa, ko tētahi o ngā wāhanga tino nui o ngā pūnaha Lidar e hangai ana ki te FMCW ko te pūwhakatikatika raina teitei. Kei te whakaatuhia tōna mātāpono mahi i te pikitia e whai ake nei: Mā te whakamahiKaiwhakarerekē DP-IQe hangai anate whakarerekētanga taha-kotahi (SSB), te taha o runga me te taha o raroMZMmahi i te pūwāhi kore, i runga i te huarahi me te heke iho i te awhi taha o wc+wm me WC-WM, ko wm te auau whakarerekētanga, engari i te wā kotahi ka whakauruhia e te hongere o raro te rerekētanga ā-wāhanga 90 nekehanga, ā, i te mutunga ka whakakorehia te mārama o WC-WM, ko te wā nekehanga auau anake o wc+wm. I roto i te Pikitia b, ko te kikorangi LR te tohu tangi FM ā-rohe, ko te karaka RX te tohu whakaata, ā, nā te pānga Doppler, ka puta te f1 me te f2 i te tohu patu whakamutunga.
Ko te tawhiti me te tere ko:
Ko te tuhinga e whai ake nei i whakaputaina e te Whare Wānanga o Shanghai Jiaotong i te tau 2021, mōSSBngā miihini whakaputa e whakatinana ana i te FMCW i runga ingā kaiwhakatikatika rama silicon.
Ko te whakaaturanga o te mahi a te MZM penei: He nui te rerekētanga o te mahi a ngā pūwhakatikatika ringa o runga me raro. He rerekē te ōwehenga whakakorenga o te taha kawe me te tere o te pūwhakatikatika auau, ā, ka kino haere te pānga i te pikinga o te auau.
I te pikitia e whai ake nei, e whakaatu ana ngā hua whakamātautau o te pūnaha Lidar ko a/b te tohu patu i te tere kotahi me ngā tawhiti rerekē, ā, ko c/d te tohu patu i te tawhiti kotahi me ngā tere rerekē. I eke ngā hua whakamātautau ki te 15mm me te 0.775m/s.
I konei, ko te whakamahinga anake o te siliconpūwhakarerekētanga whatumō te FMCW. Inaa, kāore te pānga o te whakatikatika whatu silicon i te pai ki tērā oKaiwhakarerekē LiNO3, nā te mea i roto i te whakarerekētanga whatu silicon, ko te tauwehenga huringa ā-wāhanga/whakaurunga/pūnga hononga he kore-rārangi me te huringa ngaohiko, e whakaatuhia ana i te ahua i raro nei:
Ara,
Ko te whanaungatanga mana putanga o tekaiwhakarerekēko te pūnaha e whai ake nei
Ko te hua he tangohanga ota teitei:
Ka whānui ake te tohu auau pāorooro i ēnei, ā, ka heke te ōwehenga tohu-ki-haruru. Nā, he aha te huarahi hei whakapai ake i te rārangi o te pūwhakarerekētanga rama silicon? I konei ka kōrerohia noa ngā āhuatanga o te taputapu tonu, ā, kāore e kōrerohia te kaupapa utu mā te whakamahi i ētahi atu hanganga āwhina.
Ko tētahi o ngā take mō te kore-rārangi o te wāhanga whakarerekētanga me te ngaohiko ko te mea kei roto te mara mārama i te arataki ngaru i te tohatoha rerekē o ngā tawhā taumaha me ngā tawhā māmā, ā, he rerekē te tere huringa wāhanga me te huringa o te ngaohiko. E whakaatuhia ana i te pikitia e whai ake nei. Ko te rohe whakahekenga me te pokanoa taumaha he iti ake te huringa i tērā me te pokanoa mārama.
E whakaatu ana te pikitia e whai ake nei i ngā ānau huringa o te TID whakahāngaitanga whakawhiti-tuatoru o te raupapa tuatoru me te SHD whakahāngaitanga hāmoni o te raupapa tuarua me te kukū o te raruraru, arā, te auau whakarerekētanga. Ka kitea ko te kaha pehi o te wetewete mō te raruraru taumaha he teitei ake i te raruraru māmā. Nō reira, ka āwhina te whakaranu anō ki te whakapai ake i te rārangitanga.
He rite tonu te kōrero i runga ake nei ki te whakaaro ki a C i roto i te tauira RC o MZM, ā, me whakaaro anō hoki ki te awe o R. Koinei te pihi whakarerekētanga o CDR3 me te ātete raupapa. Ka kitea ko te iti o te ātete raupapa, ko te nui ake o te CDR3.
Hei whakamutunga, engari ehara i te mea iti rawa, kāore te pānga o te modulator silicon i te kino atu i te LiNbO3. E ai ki te pikitia i raro nei, ko te CDR3 o tekaiwhakarerekētanga siliconka teitei ake i tērā o LiNbO3 mēnā ka tino pāngia e te hoahoa whaitake o te hanganga me te roa o te modulator. Ka noho rite tonu ngā āhuatanga whakamātautau.
Hei whakarāpopototanga, ko te hoahoa hanganga o te pūwhakatikatika rama silicon ka taea anake te whakaiti, kāore e taea te whakatika, ā, me whakamana whakamātautau mēnā ka taea te whakamahi i roto i te pūnaha FMCW, mēnā ka taea, ka taea te whakauru i te taputapu whakawhiti, he painga mō te whakaiti utu nui.
Wā tuku: Maehe-18-2024