Unified Position/Location Tracking and Communications Device for Live Urban Warfare Training

Period of Performance: 11/06/2003 - 11/05/2005


Phase 2 SBIR

Recipient Firm

Navsys Corp.
14960 Woodcarver Road Array
Colorado Springs, CO 80921
Principal Investigator


Under this Phase II effort we propose to build and test a unified position/location tracking (PLT) and communication (POSCOMM) device suitable for use in future training systems such as OneTESS. Our proposed approach is to develop a POSCOMM solution based on a Software Defined Radio (SDR) architecture which integrates GPS positioning and networked communications into a general purpose software/hardware radio solution. While GPS is commonly used for positioning today in an outdoor training environment, it does not currently meet the precision or the coverage requirements to supporting urban training needs such as Geometric Pairing (GP). Our proposed approach is to use network assistance to bolster GPS reception in low signal and degraded signal environments (e.g., tunnels, buildings, under tree canopy, and within proximity to RF transmissions). For areas where GPS reception is impossible (e.g. inside metal buildings), PLT coverage is maintained by using Time Of Arrival (TOA) observations from strategically located POSCOMM devices. Under the Phase II effort we will build four prototype POSCOMM test-beds to be used for evaluating the PLT coverage and the accuracy of the TOA observations in a MOUT environment. Several transition opportunities have been identified including the One Tactical Engagement Simulation System (One TESS) and the Joint Tactical Radio System. The integrated POSCOMM SDR will provide a small, lightweight, low power, low cost positioning device suitable for use in future training systems such as OneTESS. This device will also have applicability for supporting SUO situational awareness. The software waveforms to be developed under this activity can transition into the SLICE and JTRS programs expanding the capabilities of these military software defined radios. Commercial applications also exist including emergency location (E-911) and asset tracking.