The Defense Threat Reduction Agency (DTRA) is seeking innovative software solutions to integrate the Persistent Systems Wave Relay API features into the Thales InterSense IS-1500 Visual Inertial Tracking Software. The primary objective is to enhance local positioning capabilities for uncrewed and worn sensors during tactical operations by fusing RF signal data with existing inertial and visual tracking technologies, particularly in GPS-denied environments. This integration is crucial for improving the accuracy and reliability of positioning for Chemical, Biological, Radiological, and Nuclear (CBRN) sensors in complex operational scenarios. Interested parties must submit their proposals by July 23, 2025, with the opportunity encompassing both Phase I and Phase II development stages, as outlined in the solicitation documents available at the provided source link.