Scholar Ranging & Localization

CM-scale distance measurement and positioning for research and education

Using Ultra Wideband (UWB) pulsed signaling optimized for two-way time-of-flight (TW-TOF) ranging and communications, the Scholar P440 development module provides wireless distance measurements with 2 CM precision.

The modules excel even in the most challenging environments (indoors, in tunnels, in very cluttered environments, in low visibility or harsh weather), where traditional location-based technologies like GPS or LiDAR struggle or sometimes don’t work at all.

Measuring ranges with 2 CM precision allows you to create very precise tracking and navigation networks. RangeNet, Scholar’s software for research and education, builds upon TW-TOF ranging with a complete ranging network and a localization layer to support navigation and tracking applications. Network coordination happens automatically on the Scholar development module without the need for a connected host.

The software logs waveform scan data, provides bias adjustment and includes a patented range quality metric informing the user of blocked or compromised measurements. A feature-rich API with sample C and MATLAB code allows users to build their own custom interfaces.


  • 2 CM precision over hundreds of meters
  • High performance in high multipath, RF-noisy environments
  • Collected waveform data logged to MATLAB-compatible files
  • Range error estimation provided
  • Ranging network with TDMA and ALOHA scheduler options
  • Auto-survey of anchor node positions
  • Extended Kalman Filtering for mobile nodes
  • Detailed API with sample C and MATLAB code
  • Ideal for mobile ad hoc applications


  • Peer-to-peer ranging for collision avoidance
  • Indoor / GPS-denied navigation and tracking
  • Automated vehicle following & convoying
  • Autonomous vehicle guidance
  • Dynamic test measurement systems


  • 5 Scholar P440 Modules in protective enclosures
  • 5 Broadspec UWB antennas
  • 5 Rechargeable USB batteries with chargers
  • RangeNet software with license supporting networks of up to 10 nodes (additional license options available)
  • 5 Hours of Humatics technical support