Ka nānā ʻana a me ka hana ʻana i nā hōʻailona ʻike ʻōlelo mamao laser

Laserka nānā ʻana a me ka hana ʻana i nā hōʻailona ʻike ʻōlelo mamao
ʻO ka wehewehe ʻana i ka walaʻau hōʻailona: ka nānā ʻana i ka hōʻailona a me ka hana ʻana o ka ʻike ʻōlelo mamao laser
Ma ke kahua kupaianaha o ka ʻenehana, ua like ka ʻike ʻōlelo mamao laser me kahi symphony nani, akā he "walaʻau" ponoʻī ko kēia symphony - ka walaʻau hōʻailona. E like me ka poʻe hoʻolohe walaʻau i manaʻo ʻole ʻia ma kahi ʻaha mele, hoʻopilikia pinepine ka walaʻau i lokoka ʻike ʻana i ka ʻōlelo laserWahi a ke kumu, hiki ke hoʻokaʻawale ʻia ka walaʻau o ka ʻike ʻana i nā hōʻailona ʻōlelo mamao laser i ka walaʻau i hoʻokomo ʻia e ka mea ana haʻalulu laser ponoʻī, ka walaʻau i hoʻokomo ʻia e nā kumu leo ​​ʻē aʻe kokoke i ka pahuhopu ana haʻalulu a me ka walaʻau i hana ʻia e ka haunaele o ke kaiapuni. Pono ka ʻike ʻana i ka ʻōlelo mamao loa e loaʻa nā hōʻailona ʻōlelo e hiki ke ʻike ʻia e ka lohe kanaka a i ʻole nā ​​​​mīkini, a ʻo nā leo hui like ʻole mai ke kaiapuni waho a me ka ʻōnaehana ʻike e hōʻemi i ka lohe ʻana a me ka maopopo o nā hōʻailona ʻōlelo i loaʻa, a ʻo ka hoʻolaha ʻana o ke alapine alapine o kēia mau leo ​​​​ua kūlike hapa me ka hoʻolaha nui o ke alapine alapine o ka hōʻailona ʻōlelo (ma kahi o 300 ~ 3000 Hz). ʻAʻole hiki ke kānana wale ʻia e nā kānana kuʻuna, a pono ka hana hou ʻana o nā hōʻailona ʻōlelo i ʻike ʻia. I kēia manawa, ke aʻo nui nei nā mea noiʻi i ka denoising o ka walaʻau broadband ʻaʻole paʻa a me ka walaʻau hopena.
Hoʻoponopono pinepine ʻia ka walaʻau hope broadband e ke ʻano kuhi spectrum manawa pōkole, ke ʻano subspace a me nā algorithms hoʻopau walaʻau ʻē aʻe e pili ana i ka hana hōʻailona, ​​​​a me nā ʻano aʻo mīkini kuʻuna, nā ʻano aʻo hohonu a me nā ʻenehana hoʻonui ʻōlelo ʻē aʻe e hoʻokaʻawale i nā hōʻailona ʻōlelo maʻemaʻe mai ka walaʻau hope.
ʻO ka walaʻau impulse ka walaʻau speckle i hiki ke hoʻolauna ʻia e ka hopena speckle dynamic ke hoʻopilikia ʻia kahi o ka pahuhopu ʻike e ke kukui ʻike o ka ʻōnaehana ʻike LDV. I kēia manawa, hoʻopau nui ʻia kēia ʻano walaʻau ma ka ʻike ʻana i kahi i loaʻa ai ka hōʻailona i kahi piko ikehu kiʻekiʻe a hoʻololi iā ia me ka waiwai i wānana ʻia.
Loaʻa i ka ʻike leo mamao laser nā manaʻolana noi ma nā ʻano he nui e like me ka interception, ka nānā ʻana i nā ʻano multi-mode, ka ʻike komo hewa, ka ʻimi a me ka hoʻopakele, ka microphone laser, a pēlā aku. Hiki ke wānana ʻia e pili ana ke ʻano noiʻi e hiki mai ana o ka ʻike leo mamao laser i ka (1) hoʻomaikaʻi ʻana i ka hana ana o ka ʻōnaehana, e like me ka ʻike a me ka ratio signal-to-noise, ka hoʻomaikaʻi ʻana i ke ʻano ʻike, nā ʻāpana a me ke ʻano o ka ʻōnaehana ʻike; (2) Hoʻonui i ka hiki ke hoʻololi i nā algorithms hana hōʻailona, ​​​​i hiki i ka ʻenehana ʻike ʻōlelo laser ke hoʻololi i nā mamao ana like ʻole, nā kūlana kaiapuni a me nā pahuhopu ana haʻalulu; (3) ʻOi aku ka koho kūpono o nā pahuhopu ana haʻalulu, a me ka uku kiʻekiʻe o nā hōʻailona ʻōlelo i ana ʻia ma nā pahuhopu me nā ʻano pane alapine like ʻole; (4) Hoʻomaikaʻi i ke ʻano o ka ʻōnaehana, a hoʻomaikaʻi hou i ka ʻōnaehana ʻike ma o

ka hoʻoliʻiliʻi ʻana, ka lawe ʻana a me ke kaʻina hana ʻike akamai.

Kiʻi 1 (a) Kiʻikuhi hoʻolālā o ka hoʻopaʻa ʻana o ka laser; (b) Kiʻikuhi hoʻolālā o ka ʻōnaehana pale-hoʻopaʻa laser