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Home>News>2014>Navy awards IAI a new contract to develop Reliability Analysis Enhanced Prediction System for Phased-Array Radar Health Management

Navy awards IAI a new contract to develop Reliability Analysis Enhanced Prediction System for Phased-Array Radar Health Management

High-power multi-function phased-array radars typically employ a grid of hundreds or thousands of fixed antenna elements, each of which transmit and receive a signal beam. Preventive maintenance for these naval radars is currently time-consuming and requires human monitoring. Prognostics and Health Management (PHM) practices can provide an estimate of the Remaining Useful Life (RUL) of a component, improve system availability, and reduce maintenance costs. Phased-array radars are a unique application for PHM due to the large number of small and homogeneous element antennas, and the inherent challenges that exist in RUL predictions. To address these concerns, IAI and its collaborator, Lockheed Martin, will develop a Reliability Analysis-enhanced Prediction System (RAPS) for phased-array radar health management. Compared to other state-of-the-art techniques, RAPS provides a systematic approach to address the RUL prediction for radar system diagnostics and prognostics by taking into account the redundancy of radar system components. RAPS consists of three main modules: diagnostics and health index estimation that detects a potential failure and quantifies its degradation state, baseline RUL prediction, and reliability-based prognostic fusion. RAPS will improve RUL predictions of components by advanced prognostic algorithms, and by adaptively accommodating loading conditions being experienced from the reliability analysis of failed homogeneous components. RAPS also provides accurate fault degradation status estimation based on advanced two-step estimation approach to improve the robustness and accuracy of degradation estimation, which can also address intermittent fault degradation. The successful implementation of RAPS will increase the overall availability and reliability of phased-array radar systems.

About IAI:
Intelligent Automation, Inc. (IAI) is a technology innovation company headquartered in Rockville, MD. We specialize in providing advanced technology solutions and R&D services to federal agencies, and corporations throughout the United States and internationally. Leveraging agile R&D processes, a multi-disciplinary collaborative environment, and its substantial intellectual property portfolio, IAI excels in developing concepts into market-focused products and customer-driven solutions. IAI’s core R&D areas include: Air Traffic Management, Big Data and Social Media Analytics, Control and Signal Processing, Cyber Security, Education and Training Technologies, Health Technologies, Modeling and Simulation, Networks and Communications, Robotics, and Sensor Systems. For more information on IAI, please visit

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