256 Gutandukanya inshuro, Kwinjiza inshuro 0.3 ~ 30GHz

Imiyoboro ya 256 ni moderi yumuzunguruko wa digitale igabanya inshuro yikimenyetso cyinjira kuri 1/256 yumwimerere wambere. Ibiranga nibisabwa ni ibi bikurikira:

Ibiranga:
1. Coefficient nini yo kugabana inshuro nyinshi
Ikigereranyo cyo kugabana inshuro ni 256: 1, gikwiranye na ssenariyo isaba kugabanuka gukomeye, nko gutanga ibimenyetso byo kugenzura imirongo mike uhereye kumasaha menshi.
2. Inzego nyinshi zitera imiterere
Mubisanzwe bigizwe na 8-binary comptabilite (nka compte 8-biti), nka 2 ^ 8 = 256, flip flip nyinshi igomba gukenerwa, ishobora gutangiza gutinda.
3. Umusoro usohoka
Inshingano yinzira yo hejuru ya biti isohoka ya binary compte ni 50%, ariko icyiciro cyo hagati gishobora kuba kidasanzwe. Niba uruziga rwuzuye rusabwa 50% byinshyi, birakenewe ko hongerwaho uburyo bwo gutunganya ibitekerezo (nkibisubizo cyangwa guhuza umurongo).
4. Umutekano muke
Ukurikije igishushanyo mbonera cya sisitemu, gifite umusaruro mwinshi mwinshi, ntigishobora guterwa nibintu bidukikije nkubushyuhe na voltage, kandi bishingiye kubimenyetso byinjira bihamye.
5. Gukoresha ingufu nke no kwishyira hamwe
Ikoranabuhanga rya kijyambere rya CMOS rifite ingufu nke, ryoroshye kwinjiza muri FPGA, ASIC cyangwa microcontroller, kandi rifite amikoro make.

Gusaba:
1. Sisitemu y'itumanaho
Synthesis ya Frequency: Mu cyiciro gifunze icyiciro (PLL), inshuro yagenewe ikorwa ifatanije na voltage igenzurwa na oscillator (VCO); Igice cya oscillator yaho (LO) igabana rya porogaramu muri RF itanga imirongo myinshi.
2. Gutunganya ibimenyetso bya digitale
Downsampling: Kugabanya igipimo cyicyitegererezo kugirango ugabanye umubare wamakuru, ukoreshwa hamwe na anti aliasing filter.
3. Ibikoresho byigihe nigihe
Mu masaha ya digitale hamwe nigihe cya elegitoroniki, oscillator ya kristu (nka 32.768kHz) igabanijwe na 1Hz kugirango itware ikiganza cya kabiri.
Gutinda gukurura cyangwa guteganya ibihe mugihe cyo kugenzura inganda.
4. Ibikoresho byo gupima no gupima
Imashini itanga ibimenyetso itanga ibimenyetso byikigereranyo gito cyangwa ikora nka module igabanya module ya metero yumurongo.