Anti-Jamming GNSS Solutions
for UAV Platforms
Enable stable positioning and mission continuity
in RF-contested environments.
• Designed for UAVs facing jamming, ground interference, and high-power RF emissions
• Low-SWaP anti-jamming options for small drones and tactical UAVs
RF Interference Threats
in UAV Operations
Low-altitude UAV platforms operate in RF-contested environments where GNSS signals are susceptible to jamming and interference.
Mission reliability depends on maintaining stable PNT across:
• Surveillance and perimeter monitoring
• Tactical ISR missions
• Autonomous navigation
• Time-synchronized airborne systems
Portable Tactical GNSS Jammers
Short-range, high-power interference sources capable of disrupting GNSS positioning during low-altitude UAV missions.
Environmental RF Interference
High-power RF emitters on the ground may introduce interference that degrades GNSS tracking and navigation accuracy for UAVs.
Multi-Directional Ground Jamming
Coordinated jamming from multiple ground-based sources may disrupt GNSS reception and reduce navigation reliability in contested UAV missions.
High-Power Infrastructure Emissions
High-power terrestrial transmitters may elevate the RF noise floor and compromise GNSS tracking reliability in low-altitude flight environments.
Why UAVs Require
Anti-Jamming GNSS
Low Altitude Exposure
• Direct line-of-sight to ground jammers
GNSS-Dependent Navigation
• No fallback navigation capability
SWaP Constraints
• Limited size, weight, and power budget
Dynamic & Mission- Critical Operation
• Continuous positioning required in motion
Solution Options for UAV Platforms
Choose the right anti-jamming solution based on your platform architecture, integration preference, and interference scenario.
4-Element CRPA Antenna
Best for UAVs with an existing GNSS receiver
- • Lightweight CRPA array for low-SWaP platforms
- • Enhances anti-jamming capability while keeping receiver flexibility
- • Easy connection to onboard GNSS systems
4-Element CRPA Antenna
Complete anti-jam and GNSS Receiver solution
- • All-in-one anti-jamming and GNSS unit
• Simplifies system integration and deployment
• Ideal for rapid platform integration projects
Directional Anti-Jam Antennas
Best for low-angle ground interference scenarios
- • Directional beam design for focused suppression
• Effective against ground-based jamming threats
• Cost-effective option for specific mission profiles
Solution Options for UAV Platforms
Choose the right anti-jamming solution based on your platform architecture, integration preference, and interference scenario.
CRPA Antennas
Best for UAVs with an existing GNSS receiver
- • Lightweight CRPA array for low-SWaP platforms
- • Enhances anti-jamming capability while keeping receiver flexibility
- • Easy connection to onboard GNSS systems
Integrated CRPA Systems
Complete anti-jam and GNSS Receiver solution
- • All-in-one anti-jamming and GNSS unit
• Simplifies system integration and deployment
• Ideal for rapid platform integration projects
Directional Anti-Jam Antennas
Best for low-angle ground interference scenarios
- • Directional beam design for focused suppression
• Effective against ground-based jamming threats
• Cost-effective option for specific mission profiles
UAV GNSS ANTI-JAMMING SOLUTIONS
SECURING MISSION-CRITICAL NAVIGATION FOR UAVS
ADVANCED CRPA TECHNOLOGY
CRPA Array ANTENNA
Adaptive null-steering for neutralizing high-power directional jammers.
MULTI-JAMMER SPATIAL NULLING
DYNAMIC SPATIAL NULL & SUPPRESSION
Real-time generation of multiple distinct nulls to suppress concurrent jamming sources.
HIGH-DYNAMIC PERFORMANCE
PATTERN STABILITY UNDER UAV DYNAMICS
Maintains consistent radiation patterns and signal tracking during aggressive maneuvers.
HIGH-REJECTION RF CONDITIONING
FILTERING & FRONT-END CONDITIONING
Premium RF filtering with deep out-of-band rejection to prevent front-end saturation.
OPTIMIZED ARRAY GEOMETRY
PRECISION ELEMENT PALCEMENT
Precision-engineered array layout for optimized beam performance and maximum FoV coverage.
UAV GNSS ANTI-JAMMING SOLUTIONS
SECURING MISSION-CRITICAL NAVIGATION FOR UAVS
ADVANCED CRPA TECHNOLOGY
CRPA Array ANTENNA
Adaptive null-steering for neutralizing high-power directional jammers.
MULTI-JAMMER SPATIAL NULLING
DYNAMIC SPATIAL NULL & SUPPRESSION
Real-time generation of multiple distinct nulls to suppress concurrent jamming sources.
HIGH-DYNAMIC PERFORMANCE
PATTERN STABILITY UNDER UAV DYNAMICS
Maintains consistent radiation patterns and signal tracking during aggressive maneuvers.
HIGH-REJECTION RF CONDITIONING
FILTERING & FRONT-END CONDITIONING
Premium RF filtering with deep out-of-band rejection to prevent front-end saturation.
OPTIMIZED ARRAY GEOMETRY
PRECISION ELEMENT PALCEMENT
Precision-engineered array layout for optimized beam performance and maximum FoV coverage.
CRPA ANTI-JAMMING TECHNOLOGY PRINCIPLE
RF SENSOR ARRAY (4 Elements)
MULTI-CHANNEL RF FRONT-END
ANTI-JAMMING SIGNAL PROCESSOR (FPGA)
SIGNAL RECONSTRUCTION
GNSS RECEIVER
FINAL OUTPUT
LNA
BPF
RF to IF
HIGH-SPEED ADC
CORE SIGNAL PROCESSING
FILTERING
STAP CORE
ADAPTIVE NULLING ALGORITHM
WEIGHT CALCULATION UNIT
DIGITAL SUMMING
DAC & UP-CONVERTER
MULTI-CONSTELLATION TRACKING
CARRIER/CODE LOOP
RTK PROCESSOR
PVT DATA
ANTI-JAM STATUS
SPATIAL SAMPLING OF GNSS & INTERFERENCE SIGNALS
CORE SIGNAL PROCESSING
SPATIAL RECONSTRUCTION
Recommended Anti-Jamming Products for UAV Platforms
Anti-Jamming CRPA Antenna
AJ-4-100 is a compact 4-element (Controlled Reception Pattern Antenna) CRPA designed for reliable GNSS signal reception in jamming-prone UGV environments. It supports GPS L1, and BeiDou B1 signal bands.
Designed for low SWaP integration, it can suppress up to three simultaneous jamming sources, delivering J/S capability of ≥90 dB for a single jammer and ≥80 dB for three jammers.
Anti-Jamming CRPA System
AJS-4-65 is a compact integrated anti-jamming GNSS system for UGV applications. It supports GPS L1, and BeiDou B1 signal bands.
Combining a 4-element CRPA antenna, adaptive anti-jamming processing, and a built-in GNSS receiver in a 65 × 65 mm, ≤150 g enclosure, it supports up to three simultaneous jammers with J/S capability of ≥100 dB (single jammer) and ≥90 dB (three jammers).
4-Element Anti-Jamming CRPA Antenna
AJ-4-100 is a compact 4-element(Controlled Reception Pattern Antenna) CRPA antenna designed for UAV platforms requiring low SWaP and robust anti-jamming performance. It supports GPS L1 and BeiDou B1 bands.
Designed for compact platform integration, it can suppress up to three simultaneous jamming sources, delivering J/S capability of ≥90 dB for a single jammer and ≥80 dB for three jammers.
4-Element Anti-Jamming CRPA System
AJS-4-65 is a compact integrated anti-jamming GNSS system designed for low-SWaP UAV platforms. It supports GPS L1 and BeiDou B1 bands.
Integrating a 4-element CRPA antenna array, adaptive anti-jamming processing, and a built-in GNSS receiver in a 65 × 65 mm, ≤150 g enclosure, it supports up to three simultaneous jammers with J/S capability of ≥100 dB for a single jammer and ≥90 dB for three jammers.