CUAV C-RTK 3 G5 Anti-Jamming Spoofing GNSS Module for Drone
C-RTK 3 G5 GNSS Module Brief:
CUAV C-RTK 3 G5 represents CUAV’s next‑gen anti‑jamming & anti‑spoofing positioning‑orientation module. Equipped with an STM32H5 processor and complete GNSS algorithm suite, it features native CAN FD bus support. Furthermore, it achieves centimeter‑level positioning alongside dual‑antenna heading detection. Beyond core positioning functions, it adopts a holistic signal‑protection architecture. This solution merges measurement accuracy with solid anti‑attack performance. Benefiting from such hardware and algorithm designs, the unit withstands electromagnetic interference, spoofing attacks and heavy vibration. Ultimately, it supplies trusted positioning‑orientation services for unmanned system applications.
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C-RTK 3 G5 GNSS Module Feature:
- 0.6 cm +0.5 ppm RTK Positioning Accuracy Multi-Constellation
- Multi-Band GNSS Reception System
- All-Round Anti-Jamming & Anti-Spoofing
- Integrated LOCK+ for Stable Tracking Under High Vibration and Shock
- 2-Channel EVENT Inputs with Configurable PPS output
- 20 Hz High Update Rate & CAN FD High-Speed Bus Transmission
- Dual-Antenna Orientation Replaces Compass and No Calibration Required
- Compatible with ArduPilot & PX4
C-RTK 3 G5 GNSS Module Product Description:
High-Precision Positioning Centimeter-Level Positioning +Dual-Antenna Direction Finding
Boasting centimeter‑level RTK positioning accuracy, the module reaches horizontal accuracy of up to 0.6 cm + 0.5 ppm and vertical accuracy of up to 1 cm + 1 ppm, with initialization completed in just 7 seconds. Dual‑antenna heading functionality enables heading & pitch or heading & roll measurement to output accurate and reliable heading information. Compatibility extends to various positioning modes such as Standalone and DGNSS, yielding velocity accuracy as high as 3 cm/s. Users can toggle modes in response to environmental conditions and mission objectives, fulfilling high‑precision positioning and attitude perception demands for unmanned systems operating in complex and dynamic scenarios.
Dual-Antenna Heading Determination Compass-Free Calibration Experience
By fixing the dual-antenna baseline length and calculating the baseline vector using carrier phase difference resolution, it outputs heading attitude data with accuracy up to 0.03°. When mounted on a vehicle, it replaces the electronic compass, which is susceptible to magnetic interference, eliminating tedious calibration and providing more stable and reliable orientation.
Multi-band Multi-Constellation Reception Full Coverage in Complex Environments
Built-in with 789 hardware channels, it simultaneously receives full-band signals from GPS, GLONASS, BeiDou, Galileo, and QZSS. This significantly enhances signal acquisition capability and ensures reliable positioning even in signal-challenged environments such as urban canyons and tree-shaded areas. It is compatible with Galileo HAS high-precision services, and its look-ahead function can be continuously upgraded via firmware updates to maintain technological advancement.
STM32H5 Processor High-Performance Core
Powered by the STM32H5 high-performance processor featuring 250 MHz main frequency and Arm Cortex-M33 core, it delivers up to 1023 CoreMark of computing performance, providing ample computational support for complex algorithms.
Ture High Refresh Rate CAN FD + High Update Rate
Industry-first integration of CAN FD bus into GNSS positioning module. Compared to traditional CAN, the data rate is increased from 1 Mbps to 8 Mbps. Optimized ArduPilot / PX4 firmware support ensures that the 20 Hz refresh rate is not limited to GNSS module performance but truly serves high-precision navigation, significantly enhancing navigation accuracy.
Precise ldentification Interference Detection Display Alert
Equipped with dedicated GNSS RF interference detection technology, it accurately identifies the operating frequency band and signal strength of interfering signals. Interference information is pushed in real-time to the smart controller via DroneCAN/ UART interfaces and clearly displayed on the ground station, helping users immediately understand the RF interference environment, effectively avoid risks, and ensure operational safety.
All-Round Protection 1 Powerful Anti-Spoofing
Leveraging AIM+ detection technology, satellite reliability is graded, marked, and filtered based on factors such as abnormal spoofing signal characteristics, space-time and space-frequency verification, multi-constellation cross-validation, and inertia coupling. In addition, the OSNMA satellite security authentication mechanism is introduced to provide comprehensive protection against artificial signal spoofing.
Incorporates OSNMA satellite-level security authorization mechanism, compatible with Galileo encrypted navigation message authentication technology. This verifies the legitimacy of information at the signal source, effectively resisting positioning tampering caused by forged signal injection. It ensures the authenticity and reliability of the signal source, blocks the risk of forged signal injection, and provides secure positioning for equipment operation.
Integrates AIM+integrated anti-jamming and spoofing detection, which automatically detects narrowband electromagnetic interference, malicious human interference, and signal spoofing. It can mark and actively mitigate these situations in real time without manual intervention, continuously outputting clean positioning data to prevent intentional interference and detection.
All-Round Protection 2 Robust Anti-Jamming
Integrates four auxiliary protection technologies—AIM+ 、 APME+、 IONO+、 RAIM+ —to systematically address issues such as multipath interference, ionospheric disturbances, data anomalies, and signal suppression, significantly enhancing the positioning stability and reliability of the system in dynamic and complex environments.
AlM+: Monitors and filters to eliminate electromagnetic interference and signal suppression.
APME+: Multipath anti-jamming technology reduces errors caused by building-reflected signals.
IONO+: lonospheric scintillation detection technology, protects against ionospheric disturbance.
RAIM+: Autonomous integrity monitoring, prevents faulty positioning
Integrated LOCK+| Resilience Against High-Frequency Vibration and Shock
Specifically optimized for severe vibration and shock scenarios, LOCK+ enables continuous and stable tracking of satellite signals. It significantly reduces the risk of positioning latency in dynamic environments, ensuring continuous and uninterrupted positioning under complex conditions such as high-frequency vibration and rapid movement.
Fully Traceable Data Support Local Data Logging
Equipped with TF card local storage, it records comprehensive data including GNSS raw data, positioning results, attitude data, and interference logs. This ensures high data security and fast read speeds, facilitating raw data review, analysis, and performance optimization.
Extensive Ecosystem Compatibility DroneCAN Communication Protocol
Equipped with 1 CAN, 1 UART, and USB 2.0 HS interfaces, it features high extension and rich interfaces. Adopting the DroneCAN protocol, it is fully compatible with ArduPilot & PX4 mainstream open-source platforms. Paired with CUAV open-source controllers, it is suitable for autonomous unmanned systems requiring high-precision positioning and high reliability, including unmanned surface vessels, robots, multi-rotors, VTOL fixed-wing aircraft, and helicopters.
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