Overview of Passive Radar and Its Receiver Architectures to Enhance Safety in Civil Aviation: A Comprehensive Analysis of History, Principles, and Performance Optimization Strategies

In recent years, many countries have shown a great deal of interest in using the concept of passive radar (PR) for remote surveillance and air traffic management. Companies and research institutes, such as Thales, EADS, Selex, Hensoldt, NC3A, and the Warsaw University of Technology, have developed off-the-shelf PR systems, their experimental setups, or demonstrators
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