Radar and sonar sensor networks

1Department of Electrical Engineering, University of Texas at Arlington, Arlington, TX 76019-0016, USA 2Department of Computer Science, The George Washington University, Washington, DC 20052, USA 3Department of Electrical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan 4Air Force Research Laboratory/RHX, Brooks City Base, San Antonio, TX 78235, USA 5Core Software Department, iBiquity Digital Corporation, 150 Allen Road, Suite 201, Basking Ridge, NJ 07920, USA 6School of Information and Telecommunications, Beijing University of Posts and Telecommunications, Beijing 100876, China