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GNSS Anti-Jamming Array Antenna Module
Anti-jamming & anti-spoofing high-precision positioning
Model: GNSS AJ Array Module
Overview
High-precision positioning module for harsh RF environments, integrating a 4-element anti-jamming antenna array, AJ/anti-spoofing processing and a GNSS receiver, with dual-frequency operation and GNSS+IMU fusion.
Highlights
- Mitigates jamming from up to three directions
- Detects below-noise-floor spoofing
- Built-in GNSS receiver and IMU
- L1 AJ/bypass auto-switch; L5 bypass
- Plug-and-play defense-style interfaces
Key Features
- 4-element antenna array plus high-performance AJ processing unit suppresses wideband/narrowband jamming while keeping stable raw observations and positioning outputs.
- Dual-frequency operation: GPS L5 bypass; L1 supports AJ and bypass with automatic interference detection and mode switching; RTK available when L1 is in bypass.
- Built-in anti-spoofing: nulling against above-noise-floor spoofing; with no strong barrage jamming, resists single-direction below-noise-floor spoofing.
- Onboard IMU fused with GNSS raw measurements further improves anti-spoofing; external GNSS receivers can also be connected.
- Typical applications: fixed-wing/rotary aircraft, small maritime platforms, unmanned systems and advanced transportation.
Specifications
| Composition | AJ antenna array + AJ/anti-spoofing unit + GNSS receiver |
|---|---|
| AJ bands | BDS B1 / GPS L1 / GAL E1 |
| Bypass band | GPS L5 |
| Anti-jamming | 1 jammer ≥105 dB; 3 jammers ≥95 dB |
| Anti-spoofing | Nulling for above-noise spoofing; single-direction below-noise spoofing without strong barrage jamming |
| Receiver accuracy | Pos ≤10 m (1σ); vel ≤0.2 m/s (1σ); PPS ≤100 ns (1σ) |
| Power | DC 9–36 V; ≤12 W |
| Operating / storage temp. | −40°C to +75°C / −40°C to +85°C |
| Ingress protection | IP66 |
| Size / weight | 100×100×28 mm; ≤220 g |
| Interfaces | SMA-J: post-AJ L1 RF + bypass L5 RF; J30J-9ZK / 10-Pin: receiver I/O and power |
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