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Adaptive Transmit Signal Design for Multi-Aperture Radar Targets

This project focuses on reducing uncertainty in target detection by maximizing information in observations. Multi-Aperture Radar with adaptive transmit signals can improve target estimation and detection in both space and time domains. The aim is to construct optimal transmit signals for enhanced radar performance.

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Adaptive Transmit Signal Design for Multi-Aperture Radar Targets

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  1. illuminated targets An Information Theoretic Approach of Adaptive Transmit Signal Design for Multi Aperture Radar PI: Dr. Jim Stiles (jstiles@rsl.ku.edu) GRA: Ambika Prasad Nanda (apnanda@ittc.ku.edu) Transmit Signal Construction Project Concept • The research goal is to decrease the uncertainty (or error) associated with the targets. The goal is achieved by finding a transmit signal that maximizes the additional (i.e. new) Information in an observation Error vs MeasurementsInformation vs Measurements Blue Code has smaller error and larger information • A Multi Aperture Radar consists of multiple Tx and Rx elements hence can provide data in both space and time • Each transmit element sends a dissimilar (i.e.non-separable) signal in time and frequency • Hence the research question – How can we construct these transmit signals optimally ? Project Impact Adaptive Transmit Radar • The transmit signal can also be adaptively selected from a finite set or changed in real-time asradar collects new information about targets leading to Adaptive Transmit Radar (or Cognitive Radar) • Information optimized Space-Time transmit signal can enhancetarget estimation and detectionusing the same transmit power and resolution • Therefore it can be used for multi-mode operation whereboth SAR Imaging and Moving Target Indication (MTI) are done simultaneously • As a result ofthe new information, thetransmit signalscan be reconstructed to emphasize the revealed targets from prior measurements in a target scene

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