Umgaqo:Umgaqo wenkqubo ye-Spectrum ye-Direct Sequence Spread Spectrum ilula kakhulu. Umzekelo, umtya wolwazi oza kuthunyelwa uyandiswa ukuya kwibhendi ebanzi kakhulu ngekhowudi ye-PN. Kwisiphelo sokufumana, ulwazi oluthunyelwe lufunyanwa ngokudibanisa isignali ye-spectrum yokusabalalisa kunye nekhowudi efanayo ye-PN esetyenziselwa ukwandiswa ekupheleni kokuthumela.
Umgaqo onzulu:Okokuqala, isebenzisa ngokuthe ngqo uchungechunge lwekhowudi ye-spectrum enezinga eliphezulu lekhowudi yokusasaza i-spectrum yesiginali kwi-transmitter ngokusebenzisa iindlela ezahlukeneyo zokumodareyitha, kwaye emva koko isebenzisa ulandelelwano lwekhowudi ye-spectrum efanayo ukucacisa kwi-receiver ukubuyisela ukusasazeka. Umqondiso wesspectrum kulwazi lokuqala. Indlela yokusabalalisa i-spectrum ngokuthe ngqo: Enyanisweni, indlela yokumodareyitha yedijithali isetyenziswa. Ngokukodwa, ikhowudi ethile ye-PN (ikhowudi ye-pseudo-ingxolo) isetyenziselwa ukongeza umthombo wesignali. Umzekelo, xa isidluliseli sifuna ukuthumela iimpawu, buyisela u-“1″ nge-110001000110 kunye no-“0” nge-00110010110. Le nkqubo iqonda i-spectrum ebanzi. Kumamkeli, ukuba ulandelelwano olufunyenweyo ngu-110001001110, luya kubuyiselwa ku-“1″ kwaye ukuba ngu-“00110010110,” luya kubuyiselwa ku-“0″. Oku kubizwa ngokuba “kukutya. Ngale ndlela, izinga lomthombo wesignali linyuswe ngamaxesha e-11, kwaye inzuzo yokucubungula ingaphezulu kwe-10dB, ephucula ngokufanelekileyo umlinganiselo wengxolo eninzi yomatshini wonke.
I-bandwidth yeRF yenkqubo ye-DSSS ibanzi kakhulu. Ngoko ke, inxalenye encinci ye-spectrum ayiyi kubangela ukutshatyalaliswa okunzulu kwi-spectrum yesignali, enye yeenzuzo zayo. I-DSSS igqwesile kukhuseleko lwayo, yiyo loo nto umkhosi wase-US wayisebenzisela ukuhanjiswa kwamacingo ngexesha leMfazwe yesibini yeHlabathi.
Oku kungentla yingcaciso yolwazi lweNxibelelwano ethe Ngqo yoSasazo lweSpectrum (DSSS) - UMmiselo woNxibelelwano oziswe kuwe ngu.Shenzhen HDV Optoelectronic Technology Co., Ltd., umenzi wezixhobo zonxibelelwano zamehlo. ndiyathemba ukuba eli nqaku linokukunceda ukwandisa ulwazi lwakho. Enkosi ngokufunda eli nqaku.