Hiki ke manaʻo ʻia nā hōʻailona a me ka walaʻau ma ke kamaʻilio ʻana he mau kaʻina hana ʻokoʻa i ʻokoʻa me ka manawa.
Aia nā hi'ohi'ona o ke ka'ina hana ma'amau a me ka hana manawa, a hiki ke wehewehe 'ia mai 'elua mau mana'o like 'ole akā pili pili.①ʻO ke kaʻina hana maʻamau he hōʻiliʻili o nā hana hoʻohālike palena ʻole;②ʻO ke kaʻina hana maʻamau he pūʻulu o nā mea ʻokoʻa.
Hōʻike ʻia nā hiʻohiʻona helu o kahi kaʻina hana maʻamau e kāna hana puʻunaue a i ʻole hana hoʻopaʻapaʻa probability. Inā kūʻokoʻa nā hiʻohiʻona helu o kahi kaʻina hana maʻamau i ka manawa hoʻomaka, ua kapa ʻia ʻo ia he kaʻina paʻa paʻa.
ʻO nā hiʻohiʻona kikohoʻe kekahi ala pōkole e wehewehe i nā kaʻina hana maʻamau. Inā paʻa ka waiwai mean o ke kaʻina hana a me ka hana autocorrelation R (T1, T1+ τ)= R (T), ua kapa ʻia ke kaʻina hana he kaʻina hana paʻa.
Inā paʻa loa ke kaʻina hana, pono ke kūpaʻa ākea; i ole ia, aole paha he oiaio.Inā like ka awelika manawa o ke kaʻina hana me ka awelika helu helu, he ergodic ke kaʻina hana.Inā ergodic kahi kaʻina hana, paʻa nō hoʻi; i ole ia, aole paha he oiaio.
ʻO ka hana autocorrelation R (T) o ke kaʻina hana paʻa maʻamau he hana like ia o ka ʻokoʻa manawa R, a ua like ʻo R (0) me ka mana awelika holoʻokoʻa, ʻo ia hoʻi ʻo R（ τ) ka waiwai kiʻekiʻe. ʻO ka mana spectral density (P) ξ (f) ʻo ia ka hana autocorrelation o ka Fourier transform R() (Wiener Minchin theorem). Hoʻoholo kēia mau hoʻololi i ka pilina hoʻololi ma waena o nā kikowaena manawa a me ka pinepine. Ma muli o ka puunaue maʻamau o ke kaʻina hana Gaussian i ka puunaue maʻamau, a ʻo kāna wehewehe ʻikepili piha e pono ai kona mau hiʻohiʻona helu. ʻO ka puʻunaue likelika hoʻokahi wale nō e pili ana i ka mean a me ka ʻokoʻa, a ʻo ka puʻunaue likelika ʻelua e pili ana i ka hana hoʻopili. ʻO ke kaʻina hana Gaussian he kaʻina Gaussian ma hope o ka hoʻololi laina. ʻO ka pilina ma waena o ka hana hāʻawi maʻamau a me ka hana Q (x) a i ʻole ERF (x) he mea maikaʻi loa ia i ka nānā ʻana i ka hana anti-noise o nā ʻōnaehana kamaʻilio kikohoʻe. He kaʻina hana stochastic i paʻa Ma hope o ka hele ʻana o I (T) i ka ʻōnaehana laina, paʻa pū kāna kaʻina hana ξ 0 (T).
ʻOi aku ka maikaʻi o nā hiʻohiʻona helu o nā kaʻina hana maʻamau a me nā hawewe sine a me ka leo Gaussian narrow-band no ka nānā ʻana i nā ʻōnaehana modulation, nā ʻōnaehana band-pass, a me ke kamaʻilio uʻi ʻole ʻana i nā alahele multipath. ʻO nā puʻunaue maʻamau ʻekolu i ke kamaʻilio ʻana, ʻo ia ka puʻunaue Rayleigh, ka puʻunaue raiki, a me ka puʻunaue maʻamau: ka enveloppe o kahi hōʻailona lawe sinusoidal a me ka narrowband. ʻO ka walaʻau ʻo Gaussian he mahele laiki. I ka nui o ka amplitude hōʻailona, ua maʻa ia i ka mahele maʻamau; i ka wā liʻiliʻi ka amplitude, ua like ia me ka māhele Rayleigh.
ʻO ka leo keʻokeʻo ʻo Gaussian kahi kumu hoʻohālike maikaʻi no ka nānā ʻana i ka walaʻau hoʻohui o ke kahawai, a ʻo ke kumu leo nui i ke kamaʻilio thermal leo no kēia ʻano walaʻau. ʻAʻole i hoʻopili ʻia kona mau waiwai i nā manawa like ʻole a kūʻokoʻa i ka helu helu. Ma hope o ka hele ʻana o ka walaʻau keʻokeʻo i ka ʻōnaehana band-limited, ʻo ka hopena ka walaʻau ʻana i ka band-limited. ʻO ka leo keʻokeʻo haʻahaʻa haʻahaʻa a me ka leo keʻokeʻo bandpass he mea maʻamau i ka ʻike kumu.
ʻO ka mea i luna nei ka ʻatikala "kaʻina hana o ka ʻōnaehana kamaʻilio" i lawe ʻia e Shenzhen HDV phoelectron Technology Co., Ltd. lana manaʻo e hiki i kēia ʻatikala ke kōkua iā ʻoe e hoʻonui i kou ʻike. Ma waho aʻe o kēia ʻatikala inā ʻoe e ʻimi nei i kahi ʻoihana mea hana uila fiber optical maikaʻi āu e noʻonoʻo aie pili ana iā mākou.
ʻO Shenzhen HDV phoelectron Technology Co., Ltd. ka mea hana nui o nā huahana kamaʻilio. I kēia manawa, uhi nā mea hana i hana ʻia i kamoʻo ONU, moʻo module optical, OLT moʻo, amoʻo transceiver. Hiki iā mākou ke hāʻawi i nā lawelawe kūikawā no nā hiʻohiʻona like ʻole. Aloha oekukakuka.
