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Creators/Authors contains: "Mehrotra, Nishant"

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  1. ; ; ; ; (, IEEE)
    Multiple-input, multiple-output (MIMO) radars can estimate radial velocities of moving objects, but not their tangential velocities. In this paper, we propose to exploit multi-bounce scattering in the environment to form an effective multi-“look” synthetic aperture and enable estimation of a moving object's entire velocity vector - both tangential and radial velocities. The proposed approach enables instantaneous velocity vector estimation with a single MIMO radar, without additional sensors or assumptions about the object size. The only requirement of our approach is the existence of at least one resolvable multi-bounce path to the object from a static landmark in the environment. The approach is validated both in theory and simulation. 
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    Free, publicly-accessible full text available July 3, 2025
  2. ; ; ; ; (, IEEE)
    Multiple-input, multiple-output (MIMO) radars can estimate radial velocities of moving objects, but not their tangential velocities. In this paper, we propose to exploit multi-bounce scattering in the environment to form an effective multi-“look” synthetic aperture and enable estimation of a moving object's entire velocity vector - both tangential and radial velocities. The proposed approach enables instantaneous velocity vector estimation with a single MIMO radar, without additional sensors or assumptions about the object size. The only requirement of our approach is the existence of at least one resolvable multi-bounce path to the object from a static landmark in the environment. The approach is validated both in theory and simulation. 
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    Free, publicly-accessible full text available May 20, 2025
  3. ; (, IEEE Journal on Selected Areas in Communications)
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  4. ; (, IEEE Journal on Selected Areas in Information Theory)
    Full Text Available 
  5. ; ; (, IFAC-PapersOnLine)
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  6. ; (, 2020 IEEE International Symposium on Information Theory (ISIT))
    null (Ed.)
    Multipath-assisted imaging algorithms have been shown to achieve super-resolution by incorporating multipath information into the imaging pipeline. In this paper, we derive the imaging degrees of freedom for multipath-assisted imaging systems to quantify the amount of super-resolution possible. 
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