Ndi pafupipafupi kusinthasintha mawu Kodi

Poyamba zingaoneke kuti mawu akuti "pafupipafupi mafananitsidwe" ntchito kokha mwa anthu amene ntchito yawo imakhudzana ndi kukonza kapena yokonza pakompyuta mawailesi kupatsira. Ndipotu si zoona wamba. Pafupipafupi kusinthasintha mawu ndi bwino kuti kwambiri, chifukwa cha kugwiritsa ntchito mayina Chingelezi, ambiri n'komwe kuti ambiri amati tsiku ndi tsiku. Tsopano mayina siteshoni pa milomo aliyense. Izi ndi zosiyana, "FM wailesi". Kodi mukudabwa kodi manambala oyambirira "FM"? Izi pafupipafupi kusinthasintha mawu okha Russified chidule - pafupipafupi Kusinthasintha, mwachitsanzo FM.

Pakuti kusinthasintha mawu iliyonse ya analogi chizindikiro onyamula mfundo zothandiza ntchito mitundu yambiri ya mapangidwe ake. Ambiri ntchito zotsatirazi mitundu kusinthasintha mawu: pafupipafupi ndi matalikidwe. Tikambirana aliyense zimenezi mwatsatanetsatane.

Mawu akuti "analogi" amatanthauza mosadodometsedwa nthawi, mosiyana apawokha digito transmissible zimachitika kusinthana. Tiyeni kukumbukira chikhazikitso cha sayansi sine yoweyula AC. Cartesian ndondomeko mu ndege: yopingasa ndi ofukula mizere. Horizontally anachedwa nthawi ndi ofukula umaimira mwamphamvu (mtengo panopa). Sine Wave - yoweyula mosalekeza, ngati kuziluka pa nthawi olamulira. Kuti ntchito sinusoid popereka mauthenga, m'pofunika kuchita 'kala' ikusonyeza mwa njira inayake, ndiye ochiritsira njira kutembenuza yoweyula.

Zikanatheka kuti tingathe yoweyula sine wa mbali ziwiri (mfundo ziwiri pa mtunda Chrixitu) ndi Finyani izo monga accordion ndi. Chifukwa, mafunde adzakhala kovuta, dera aliyense wa iwo adzakhala ndichepe, koma chiwerengero cha kudutsa pa botolo la nthawi, kudzakhala. Ndipotu, sine ting'onoting'ono basi. Ndiko kuti, pafupipafupi lasinthidwa. Komabe, yoweyula sine Opanda mbendera: ngati ndi kutenga wailesi yekha yunifolomu maziko angamvele (beep, phokoso).

Kuti izi pafupipafupi chonyamulira muli chigawo zothandiza, m'pofunika kuchita kabisidwe ndi kusinthasintha mawu, amene ali m'modzi ndipo olingana. Tangoganizani tsopano kuti ife ndife malo amodzi cholizira yoweyula ndi wamphamvu kuposa ena, ndipo penapake ngakhale anatambasula sine yoweyula, ndiye iwo anapanga dongosolo linalake. Chifukwa, maziko anamukwiyira modulated, kusintha kamvekedwe (kubwezeretsa wokamba). Ngati tsopano zambiri kusintha kamvekedwe, mukhoza popereka mauthenga othandiza (phokoso). Izi pafupipafupi kusinthasintha mawu. Ndithudi, palibe wina manja sinusoid akutambasula - ndi ntchito tiransifoma wapadera.

Mfundo zofanana ntchito mu matalikidwe kusinthasintha mawu (AM, matalikidwe Kusinthasintha), ndi kusiyana kokha kuti amaloŵamo palibe kusintha mu pafupipafupi mafunde ndi msinkhu wawo. Tiyerekeze sinusoid kutola mu mikono undulations angapo anakonza pamwamba ndi pansi pa yopingasa nthawi olamulira. Tsopano, ndi ulemu kwa olamulira a Tambasula kapena usachite. Chifukwa, kutalika zimasiyanasiyana. Gulu lotsatira mafunde kusintha mu Mofananamo, koma ndi wocheperako (kapena zikuluzikulu) mwamphamvu. Ngati inu atumize "ankangodzigwera" sine yoweyula kwa wolankhulayo, mungathe kumva kusintha kamvekedwe: komwe mafunde ndi apamwamba, pali mbendera mwamphamvu ndi wamkulu ndi kumene pansipa - pali zochepa. Ndiye zonse ndi losavuta: monga kutigwira anakhumba (Tambasula) wa yoweyula, potero kabisidwe zambiri. Monga zinachitikira pafupipafupi kusinthasintha mawu, palinso palibe amene amatambasula manja payekha - ntchito ya zing'wenyeng'wenye.

Njira ntchito matalikidwe kusinthasintha mawu chizindikiro n'zochepa kawalidwe m'lifupi Koma kwenikweni kwa HIV sitiriyo. Komabe, chifukwa chosiyana adziwana dzulo , ndi mphamvu ankalankhula mu FM ndi AM, choyamba kumafuna kuyika kawirikawiri transponders. Nawonso AM wailesi amakhala ndi lalikulu chimakwirira mtunda ndi bwino kumasiyanitsa chigawo chimodzi zothandiza, ngakhale pamaso pa phokoso.