Binciken da sarrafawa na siginar gano magana daga nesa ta Laser da kuma gano magana daga nesa

Lasernazarin siginar gano magana mai nisa da sarrafawa
Fahimtar hayaniyar sigina: nazarin sigina da sarrafa gano magana ta nesa ta laser
A cikin fagen fasaha mai ban mamaki, gano magana ta nesa ta laser kamar kyakkyawan simfoni ne, amma wannan simfoni ɗin yana da nasa "hayaniya" - hayaniyar sigina. Kamar masu sauraro masu hayaniya da ba zato ba tsammani a wurin kide-kide, hayaniyar sau da yawa tana kawo cikas a cikinGano Magana ta LaserA cewar majiyar, hayaniyar gano siginar magana ta nesa ta laser za a iya raba ta zuwa hayaniyar da na'urar auna girgizar laser da kanta ta gabatar, hayaniyar da wasu hanyoyin sauti suka gabatar kusa da ma'aunin girgiza da kuma hayaniyar da matsalar muhalli ke haifarwa. Gano magana mai nisa a ƙarshe yana buƙatar samun siginar magana wanda ji ko na'urori na ɗan adam za su iya ganewa, kuma hayaniyar da yawa daga muhallin waje da tsarin ganowa za su rage sauraro da fahimtar siginar magana da aka samu, kuma rarraba mitar waɗannan hayaniyar ta ɗan yi daidai da babban rarraba mitar siginar magana (kimanin 300 ~ 3000 Hz). Ba za a iya tace ta ta hanyar matatun gargajiya kawai ba, kuma ana buƙatar ƙarin sarrafa siginar magana da aka gano. A halin yanzu, masu bincike galibi suna nazarin rage hayaniyar broadband mara tsayawa da hayaniyar tasiri.
Ana sarrafa hayaniyar bango ta hanyar amfani da hanyar kimanta bakan na ɗan gajeren lokaci, hanyar ƙarƙashin sararin samaniya da sauran hanyoyin rage hayaniya bisa ga sarrafa sigina, da kuma hanyoyin koyon injina na gargajiya, hanyoyin koyo mai zurfi da sauran fasahohin haɓaka magana don raba siginar magana mai tsabta daga hayaniyar bango.
Hayaniyar motsa jiki ita ce hayaniyar ƙwanƙwasa da za a iya haifarwa ta hanyar tasirin ƙwanƙwasa mai ƙarfi lokacin da hasken ganowa na tsarin gano LDV ya dame wurin da aka nufa don gano na'urar. A halin yanzu, ana cire irin wannan hayaniyar ne ta hanyar gano wurin da siginar ke da ƙarfin kuzari mai yawa sannan a maye gurbinsa da ƙimar da aka annabta.
Gano muryar nesa ta Laser yana da damar amfani a fannoni da yawa kamar su katsewa, sa ido kan yanayi da yawa, gano kutse, bincike da ceto, makirufo na laser, da sauransu. Ana iya hasashen cewa yanayin bincike na gaba na gano muryar nesa ta laser zai dogara ne akan (1) inganta aikin auna tsarin, kamar hankali da rabon sigina zuwa hayaniya, inganta yanayin ganowa, abubuwan da aka gyara da tsarin tsarin ganowa; (2) Haɓaka daidaitawar algorithms na sarrafa sigina, ta yadda fasahar gano muryar laser za ta iya daidaitawa da nisan aunawa daban-daban, yanayin muhalli da maƙasudin auna girgiza; (3) Zaɓin maƙasudin auna girgiza mai ma'ana, da kuma diyya mai yawa na siginar magana da aka auna akan maƙasudai tare da halaye daban-daban na amsawar mita; (4) Inganta tsarin tsarin, da kuma ƙara inganta tsarin ganowa ta hanyar

miniaturization, ɗaukar hoto da kuma tsarin ganowa mai hankali.

FIG. 1 (a) Zane-zanen tsarin hana kutse na laser; (b) Zane-zanen tsarin hana kutse na laser