DSP yog dab tsi
DSP (Digital Signal Processing) yog hais txog kev siv cov khoos phis tawj lossis cov cuab yeej ua haujlwm tshwj xeeb los sau, hloov pauv, lim, kwv yees, txhim kho, compress, txheeb xyuas thiab lwm yam teeb liab hauv daim ntawv digital kom tau txais daim ntawv teeb liab uas ua tau raws li cov neeg xav tau (embedded microprocessor). Txij li thaum xyoo 1960, nrog rau kev loj hlob sai ntawm lub computer thiab cov ntaub ntawv thev naus laus zis, DSP thev naus laus zis tau tshwm sim thiab tsim sai heev. Hauv ob xyoos dhau los, kev teeb tsa digital tau siv dav hauv kev sib txuas lus thiab lwm yam haujlwm.
Qhov zoo ntawm DSP technology:
- Siab raug
- Kev ua haujlwm siab
- Muaj kev cia siab rau
- Lub sij hawm faib multiplexing
Cov yam ntxwv ntawm DSP technology:
1. Kev them nyiaj yug rau kev ua haujlwm ntau ntxiv
2. Lub cim xeeb qauv
3. Zero overhead loops
4. Kev suav daws teeb meem
5. Hom chaw nyob tshwj xeeb
6. Kev twv ua ntej lub sijhawm ua tiav
7. Tsau-point DSP cov lus qhia teeb
8. Yuav tsum muaj cov cuab yeej tsim kho
Thov ：
DSP feem ntau yog siv nyob rau hauv cov cheeb tsam ntawm lub teeb liab, hais lus, RADAR, seismology, suab, SONAR, lub suab paub, thiab ib co nyiaj txiag teeb liab. Piv txwv li, Digital Signal Processing yog siv rau kev hais lus compression rau cov xov tooj ntawm tes, nrog rau kev hais lus rau cov xov tooj ntawm tes.
Rau Hauv Tsheb Infotainment, cov teeb liab digital processor DSP feem ntau muab cov suab nrov tshwj xeeb, xws li kev ua yeeb yam, jazz, thiab lwm yam, thiab qee qhov kuj tuaj yeem tau txais cov xov tooj cua siab (HD) thiab xov tooj cua satellite kom muaj kev lom zem tshaj plaws. Cov teeb liab digital processor DSP txhim kho kev ua tau zoo thiab kev siv tau ntawm cov tshuab infotainment hauv tsheb, txhim kho suab thiab yees duab zoo, muab kev yooj yim dua thiab nrawm dua tsim.
