Bidirectional Echo-ranging for Underway Replenishments

To address the Navy’s need for a portable device to replace the current phone/distance line used in distance measurement during underway replenishments, Intellisense Systems, Inc. proposes to develop the new Bidirectional echo-ranging for Underway Replenishments (RECOUPLE) system based on a new design that utilizes previously developed mature components. Specifically, the innovation in active, bi-directional ranging with digital synchronous sampling and detection will dramatically increase signal-to-noise ratio (SNR), which in turn acts as a key enabler for the device to reliably overcome extremely harsh conditions such intense blowing rain and motion induced by rough seas. As a result, this device offers to provide accurate distance measurement and digital communications under all conditions, which directly address the PMS-400 requirements and offers additional benefits of lower probability of intercept and detection. In Phase I, Intellisense will demonstrate the feasibility of the RECOUPLE device by developing a proof-of-concept prototype and testing it under simulated adverse environmental conditions. Distance measurement capabilities will be established through computer modeling that is calibrated based on test results giving better fidelity and accuracy than would otherwise be possible from an uncalibrated model. In the Phase I Option, an initial design specifications and capabilities description document will be created in preparation for Phase II. In Phase II, Intellisense plans to deliver a prototype distance measurement system and communication device for evaluation against performance goals defined in the Phase II statement of work. Intellisense will also demonstrate system performance through prototype evaluation, modeling, and testing over the required range of parameters and will prepare a Phase III manufacturing and development plan to transition the distance measuring system and communications device to Navy use.