The CRADA is specifically directed to evaluate Locata's patented Vray™ switching antenna and new correlator technologies for multipath mitigation in position receivers that run at GPS frequencies. Locata engineers are transferring to AFIT the knowledge and experience they have gained with existing commercial Vray systems. This will allow AFIT researchers and engineers to familiarize themselves with the new antenna's characteristics, and provide AFIT with an essential platform to develop GPS-specific versions of Locata's correlator and switching algorithms. AFIT will first design and build a GPS-frequency multi-element switching antenna prototype that is based on Locata Vray patents. When built, AFIT intends to use their GPS receiver and this prototype Vray to physically demonstrate the feasibility of using Locata technology to improve GPS receiver performance.
After these initial prototypes are built, AFIT plans to design and test several other GPS-based versions of Locata's flexible switching antenna array to assess how Locata's Vray antennas can be adapted to use cases which are of specific interest to the military. Designs already discussed with Locata include stand-alone antennas, a version built into helmets, and arrays conformal to a vehicle's frame (e.g. flattened for a Humvee's roof, curved for aircraft fuselages, etc).
As a first step in this collaboration, AFIT personnel visited Locata's head office for a week of detailed, wide-ranging engineering briefings on the design fundamentals underpinning this new type of antenna. Locata hosted AFIT's Director, Dr.
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