1. a Automation & Robotics Research Institute, University of Texas at Arlington, 7300 Jack Newell Boulevard South, Fort Worth, TX 76118, USA;, Email: rakesh@arri.uta.edu
2. b Automation & Robotics Research Institute, University of Texas at Arlington, 7300 Jack Newell Boulevard South, Fort Worth, TX 76118, USA
3. c Automation & Robotics Research Institute, University of Texas at Arlington, 7300 Jack Newell Boulevard South, Fort Worth, TX 76118, USA
4. d Automation & Robotics Research Institute, University of Texas at Arlington, 7300 Jack Newell Boulevard South, Fort Worth, TX 76118, USA