Sezvo tekinoroji yelaser inowedzera kupararira muminda yakadai senge, kutaurirana, kufamba, uye kuona kure, modulation uye encoding nzira dzelaser masiginecha dzavewo dzakasiyana uye dzakaomarara. Kuti uwedzere hunyanzvi hwekurwisa-kupindira, kurongeka, uye kutapurirana dhata, mainjiniya akagadzira nzira dzakasiyana dzekukodha, kusanganisira Precision Repetition Frequency (PRF) Code, Variable Pulse Interval Code, uye Pulse Code Modulation (PCM).
Ichi chinyorwa chinopa ongororo yakadzama yeaya akajairwa laser encoding marudzi kuti akubatsire kunzwisisa misimboti yavo yekushanda, tekinoroji maficha, uye mamiriro ekushandisa.
1. Precision Repetition Frequency Code (PRF Code)
①Technical Principle
Iyo PRF kodhi inzira yekuisa encoding inotumira masaini epulse pane yakatarwa yekudzokorora frequency (semuenzaniso, 10 kHz, 20 kHz). Mune laser rangeing system, imwe neimwe yakadzoserwa pulse inosiyaniswa zvichienderana neyayo chaiyo emission frequency, iyo inodzorwa zvakasimba nehurongwa.
②Key Features
Chimiro chakareruka uye mutengo wakaderera wekushandisa
Inokodzera kuyerwa kwepfupi-renji uye yakakwirira-reflectivity zvinangwa
Zviri nyore kuwiriranisa neyechinyakare zvemagetsi wachi masisitimu
Kusanyanya kushanda munzvimbo dzakaoma kana dzakawanda-zvinangwa zviitiko nekuda kwengozi ye“multi-value echo”kupindira
③Application Scenarios
Laser rangefinders, imwe-chinangwa chinhambwe kuyera zvishandiso, maindasitiri ekuongorora masisitimu
2. Variable Pulse Interval Code (Random or Variable Pulse Interval Code)
①Technical Principle
Iyi encoding nzira inodzora nguva dzenguva pakati pelaser pulses kuti dziite zvisina tsarukano kana pseudo-random (semuenzaniso, kushandisa pseudo-random sequence jenareta), pane kuisirwa. Uku kusarongeka kunobatsira kusiyanisa masaini ekudzoka uye kuderedza kukanganiswa kwenzira dzakawanda.
②Key Features
Yakasimba yekurwisa-kupindira kugona, yakanakira kutariswa kwechinangwa munzvimbo dzakaoma
Zvinonyatso dzvanya maungira echipoko
Yepamusoro decoding yakaoma, inoda mamwe ane simba processors
Inokodzera yakakwirira-chaiyo kutangira uye yakawanda-yakananga kuona
③Application Scenarios
LiDAR masisitimu, counter-UAV / chengetedzo yekutarisa masisitimu, mauto laser kubva uye chinangwa chekuzivikanwa masisitimu
3. Pulse Code Modulation (PCM Code)
①Technical Principle
PCM idhijitari modulation tekinoroji uko masaini eanalog anotorwa sample, anoverengerwa, uye akaiswa mubhinari fomu. Mune laser kutaurirana masisitimu, PCM data inogona kutakurwa kuburikidza nelaser pulses kuti iwane kutapurirana ruzivo.
②Key Features
Yakagadzika kutapurirana uye yakasimba ruzha kuramba
Inokwanisa kuendesa akasiyana marudzi eruzivo, kusanganisira odhiyo, mirairo, uye mamiriro data
Inoda kuwiriraniswa kwewachi kuti ive nechokwadi chekunyora kwakaringana pane inogamuchira
Inoda yakakwirira-performance modulators uye demodulators
③Application Scenarios
Laser kutaurirana zviteshi (semuenzaniso, Yemahara Space Optical kutaurirana masisitimu), laser remote control yemakomba / spacecraft, data kudzoka mumalaser telemetry masisitimu.
4. Mhedziso
Sezvo“brain”yelaser masisitimu, laser encoding tekinoroji inosarudza kuti ruzivo rwunofambiswa sei uye nemafambiro anoita sisitimu. Kubva pamakodhi ePRF makodhi kusvika kumberi PCM modulation, sarudzo uye dhizaini ye encoding zvirongwa zvave kiyi pakugadzirisa laser system performance.
Kusarudza nzira yakakodzera yekukodha kunoda kutarisisa kwakadzama kwemamiriro ekushandisa, mazinga ekukanganisa, nhamba yezvinangwa, uye mashandisiro emagetsi ehurongwa. Semuyenzaniso, kana chinangwa chiri chekuvaka LiDAR sisitimu yemudhorobha 3D modelling, inosiyana pulse interval code ine yakasimba anti-jamming kugona inodiwa. Pazviridzwa zviri nyore zvekuyera kureba, kodhi chaiyo yekudzokorora frequency inogona kukwana.
Nguva yekutumira: Aug-12-2025