NovAtel2026年6月17日

NovAtel Launches RoDAR Anti-Jamming Technology for Professional Surveying

NovAtel has announced the development of RoDAR (Robust Dual-Antenna Receiver), a specialized anti-jamming technology engineered to enhance the reliability and robustness of positioning systems in professional surveying operations. The advancement comes as the surveying industry confronts growing challenges from signal interference and environmental noise, particularly in urban corridors, industrial zones, and other electromagnetically complex settings.

The technology leverages a dual-antenna architecture to improve resistance to jamming and multipath signal degradation—two persistent obstacles in precision positioning work. By processing signals from two antennas simultaneously, RoDAR enhances the receiver's ability to distinguish legitimate satellite signals from interference, thereby maintaining accurate positioning data even when traditional single-antenna systems might falter.

Background

GNSS (Global Navigation Satellite System) receivers have long been vulnerable to unintentional and intentional signal interference. Urban canyons, dense vegetation, and metallic structures create multipath conditions where signals bounce off surfaces before reaching the antenna, introducing errors. Additionally, the proliferation of RF (radio frequency) emitters—from wireless communication networks to industrial equipment—has made signal jamming an increasingly practical concern for surveyors operating in complex environments.

Traditional GNSS solutions address these challenges through receiver design refinements and signal processing algorithms, but single-antenna systems remain inherently limited in their ability to reject interference. The surveying industry has therefore sought technological innovations that could provide greater resilience without requiring wholesale infrastructure changes.

What's New

RoDAR represents a methodical approach to anti-jamming by employing dual-antenna reception principles previously confined to specialized military and aerospace applications. The system processes satellite signals through two spatially separated antennas, allowing the receiver to analyze signal arrival characteristics and suppress interference sources based on their directional properties.

According to NovAtel's announcement on June 17, 2026, RoDAR is specifically tailored for professional surveying instruments and positioning applications where signal continuity and accuracy are non-negotiable. The technology integrates seamlessly with existing NovAtel receiver architectures, suggesting a design approach emphasizing compatibility and field deployment practicality.

The dual-antenna configuration also provides directional information about jamming sources, enabling surveyors to assess signal quality in real time and adapt their measurement strategies accordingly. This visibility into electromagnetic conditions represents a notable operational advantage over passive rejection approaches.

What This Means for Surveyors

If you're working in urban environments, near critical infrastructure, or in regions where RF interference is common, RoDAR offers tangible workflow improvements. Rather than relocating survey stations to avoid signal-degraded zones—a time-consuming and sometimes impossible workaround—surveyors can maintain position reliability in situ. This translates directly to improved productivity, especially on projects where site access or logistics constrain station placement options.

For firms managing large-scale surveys across diverse terrain, the robustness gains reduce measurement redundancy and reoccupation cycles. Projects that might previously require revisits to verify suspicious positional data can now gather confident observations on the first pass. Over multi-project timelines, this efficiency compounds into meaningful cost reductions.

Technically, RoDAR expands the operational envelope of modern GNSS surveying into previously problematic environments. Surveyors can now tackle applications—such as positioning near broadcast towers, within industrial parks, or alongside active communication networks—with equipment confidence previously unavailable. The technology does not eliminate all interference challenges, but it substantially raises the threshold at which environmental conditions degrade positioning reliability.

Industry adoption will likely depend on pricing, integration maturity, and comparative performance data against competing anti-jamming solutions. Early adopters in high-interference environments should prioritize field testing to quantify performance gains against their specific operational challenges.