Interference Mitigation

Identifying and resolving chronic or intermittent interference

The challenge

  • With the exponential rise in demand for frequencies driven by a wide variety of wireless technologies, RF spectral environments have become increasingly busy and complex.
  • New signal protocols and communications technologies – which are difficult to see, and signal hoppers which cover significant bandwidth, are more common.
  • Passive Intermodulation (PIM), as well as other sources of interference are also on the rise and can be especially difficult to identify and locate.
  • Often a sizable spectrum environment will have multiple undetected interference issues that are degrading performance.
  • Variables such as volume, weather, time of day and harmonics can produce intermittent interference making it difficult to pinpoint and identify manually.
  • Legacy systems are often still on air and can be identified and shut down
  • Personal jammers for mobile networks, illegal repeaters and GPS blockers are ever-more prevalent.

The solution

  • SigBASE provides and unrivaled levels of spectrum awareness. Its signal recognition capabilities, over wide frequency spans and large geographical areas make spectrum analysis vastly more efficient than anything else available. Real-Time and historical data can be combined to identify trends and find a wide variety of anomalies rapidly, efficiently and accurately.
  • SigBASE is specifically designed to adjust automatically to dynamically changing noise environments. This provides a greater level of sensitivity than other monitoring systems, which is a critical requirement for wideband RF data collection, as noise floors can change often and vary across the spectrum.  Without the ability to dynamically adjust to the noise floor, signal activity will be missed and important data will be either lost or missed. The system’s automatic signal detection and learning capabilities ensure it is able to continuously adjust and recalibrate in noisy environments.
  • The system uniquely enables an operator to find inconsistencies or anomalies with greater efficiency using conflict analytics.  Utilize either historical baselines, user supplied data sets and/or publicly available data sources such as the FCC Universal Licensing System or other national databases, for real-time comparisons. This assists in finding, identifying and locating interferers or anomalies more efficiently.
  • Once an anomaly is detected, the system can automatically store, FFT data or IQ data and to demodulate certain types of signals, or Geo-locate signals of interest to provide robust actionable intelligence regarding the source.
  • With these capabilities, SigBASE can drastically enhance mission capabilities and operational effectiveness by reducing time to resolution and the costs associated with re-mediating interference. Customizable alerts and triggers also ensure you are never caught off-guard.
  • Data collected on both mobile and fixed units can remain stored on the unit or be efficiently back-hauled to a centralized server for more robust analytics. Our smart backhaul capability ensures the data is sent only when the network is clear.
  • Spectral displays, showing signal characteristics such as frequency, power, time, and more, can be viewed on remote devices with full command and control from a network operations center. This means engineers don’t have to remain physically onsite, enabling them to view and analyze real-time or historical spectral data, with complete control from wherever they are.

Key Features

  • Automated analysis capability intelligently processes signals and alerts that violate license databases.
  • Learning engine that continues to fine tune analysis and reported results over time.
  • Processing on the node limits expensive and time consuming backhaul.
  • Ability to network all fixed and mobile monitoring units and run reports over multiple units
  • Concise low power form factor that is suitable for deployment in adverse environments
  • A unique portal, Spectrum Wizard that provides instantaneous alerts and health status of all networked nodes.
  • Geolocation through Time Difference of Arrival (TDoA) or Angle of Arrival (AoA) with multiple networked nodes to find interferers.
  • Available in fixed, vehicle mounted and man-portable formats
  • Quickly identify chronic or intermittent interference.
  • Automatically demodulate signal information to help identify interfering signals.
  • Trigger geolocation of interference automatically using real time alerts.
  • Customize channel plans to identify authorized or unwanted signals.
  • Customize reports to highlight critical issues.
  • Analyze historical data to determine characteristics of disruptive interference, including location.
  • Fixed and ruggedized units can be easily networked through DGS Spectrum Wizard portal.
  • Nodal processing allows for minimal backhaul requirements.
  • Networked nodes deployed in ports, borders or around critical assets and major venues such as stadiums insure prompt detection.
  • Quickly geo locate signals of interest.
  • Direction finding antennas utilized in conjunction with SigBASE portable units enable exact source location.
  • Interference monitoring as a service is available.

"Detecting and Locating Interference quickly is critical to operational security"