Cov kev txiav txim siab tseem ceeb rau kev xaiv cov kav hlau txais xov rau lub tsheb -mounted drone jammers yog qhov sib txuam zaus, nce / lobe adaptation, tsheb ib puag ncig kev sib raug zoo, thiab txhim khu kev qha installation thiab feeder. Ua ntej omnidirectional/directional ob peb ua ke raws li qhov scenario, ces phim lub hwj chim thiab qauv.
I. Qhia meej cov ntsiab lus tseem ceeb (yuav tsum nyeem)
1. Frequency Band Matching (Feem ntau qhov tseem ceeb) Yuav tsum npog peb qhov zaus bands ntawm drones. Ib lub kav hlau txais xov yuav tsum muaj qhov dav tshaj plaws bandwidth, thaum ntau - kav hlau txais xov zaus bands tseem zoo dua:
Navigation Bands: GPS L1 (1575MHz), Beidou B1 (1561MHz), GLONASS G1 (1602MHz)
Chaw taws teeb tswj / duab kis tau tus mob: 2.4GHz (2400–2483MHz), 5.8GHz (5725–5875MHz)
Data Transmission/Flight Control: 433MHz, 868MHz, 900MHz, thiab lwm yam.
2. Tau thiab Lobe (Xaiv qhov nrug thiab kev pab them nqi)
Tau txais (dBi): Kev nce qib siab ua rau muaj ntau dua tab sis kev pabcuam nqaim dua.
Omnidirectional: 5-8 dBi (360℃kev pab cuam, luv luv)
Kev taw qhia: 12-18 dBi (ntev -ntau yam kev txwv)
Phaseed Array: 15-25 dBi (nrawm taug qab, nyiam siv tsheb)
Beamwidth:
Kab rov tav: Omnidirectional 360 degree; Kev taw qhia 20-60 degree
Vertical: 15–45℃(nrog qis-altitude UAVs)
3. Impedance thiab Lub Hwj Chim (Muab lub Main Unit)
Impedance: 50Ω (Ntau rau RF khoom)
Lub Zog Muaj Peev Xwm: Ntau dua lossis sib npaug rau Main unit ib leeg-channel xa hluav taws xob (xws li 50W / 100W), nrog cov npoo los tiv thaiv kev kub hnyiab-hauv
4. Lub tsheb ib puag ncig Specifications
Kev tiv thaiv kev ntsuas: IP65 / IP66 (tsis muaj nag, plua plav, kev co resistant)
Ua haujlwm kub: -40℃-+60 degree
Khoom siv: Carbon fiber / aluminium alloy, lub teeb yuag, cua resistant
Interface: N- hom lossis SMA txiv neej connector (feem ntau siv hauv tsheb)
II. Tus kav hlau txais xov hom thiab xwm txheej xaiv (Daim ntawv thov ncaj qha)
1. Omnidirectional Kav hlau txais xov (360 degree) 1. **Kev Pabcuam (Qhov kawg)**
Haum rau: Cov neeg saib xyuas hauv nroog, cov neeg caij tsheb thauj neeg, kev soj ntsuam hauv cheeb tsam (tsis nrhiav ntau qhov ntau, tab sis yuav tsum tsis muaj qhov muag tsis pom)
Pom zoo: Npuag-zoo li tus/fiberglass omnidirectional, 5–8 dBi, vertically polarized
Qhov zoo: Kev teeb tsa yooj yim, tsis muaj qhov yuav tsum tau ua kom haum, ruaj khov thaum tsiv
Disadvantages: txwv ntau (feem ntau 500-1000m)
2. **Directional Kav hlau txais xov (Long-ntau yam Precision Suppression)**
Haum rau: Txoj kev loj, thaj chaw qhib, lub hom phiaj tshem tawm / yuam kev tsaws
Pom zoo: Yagi kav hlau txais xov (12–15 dBi), parabolic (16–18 dBi), phased array (15–25 dBi)
Qhov zoo: Ntev ntev (1-5km), kev ua haujlwm siab, tsis muaj kev cuam tshuam rau thaj chaw ib puag ncig
Disadvantages: Yuav tsum tau phau ntawv / tsis siv neeg sib dhos, ruaj khov taug qab thaum tsiv
3. **Kev daws teeb meem (Mainstream rau tsheb)**
Kev daws teeb meem yooj yim: 1 omnidirectional (kev soj ntsuam) + 1–2 kev taw qhia (thaum pib nres)
Advanced Solution: Phased array kav hlau txais xov (automatic beam nrhiav) + Omnidirectional dig muag Spot Filling
Ntau-band: Ib lub kav hlau txais xov coj mus rau txhua qhov kev taw qhia, 2.4G, thiab 5.8G txhawm rau txhim kho kev tawm tsam
III. Installation thiab Feeder Cable (Txiav txim siab ua tau zoo)
1. Qhov chaw teeb tsa (ru tsev nyiam)
Qhov nruab nrab ntawm lub ru tsev / ru tsev khib, tsis muaj kev cuam tshuam, Ntau dua los yog sib npaug li 5cm deb ntawm cov hlau. Qhov siab dua qhov zoo dua, txo qhov kev xav hauv av.
Tus kav hlau txais xov taw qhia yuav tsum yog rotatable (phau ntawv / hluav taws xob) kom yooj yim lub hom phiaj sib dhos.
2. Feeder Cable Xaiv (Kev poob qis yog qhov tseem ceeb)
Khoom siv: 50Ω qis- poob coaxial cable (RG316, LMR400)
Ntev: Tsawg dua los yog sib npaug li 3 meters (ntev cables muaj kev cuam tshuam ntau dua)
Connectors: N-type/SMA, waterproof, ruaj ntseg, thiab zoo- shielded.
3. Electromagnetic Compatibility (EMC)
Khaws qhov deb ntawm lub kav hlau txais xov thiab lub tsheb GPS, xov tooj cua, thiab ECU.
Ntxiv kev tiv thaiv ntawm lub ntsiab chav tsev thiab kav hlau txais xov, xyuas kom meej hauv av kom zoo, thiab tsis txhob cuam tshuam tus kheej -.