1. D.D. Ferris Jr., N.C. Currie, A survey of current technologies for through-the-wall surveillance (TWS), in: Proceedings of the SPIE Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I), Information, and Training Technologies for Law Enforcement, Vol. 3577, San Diego, CA, Nov. 1998, pp. 62–72.
2. S.E. Borek, An overview of through the wall surveillance for homeland security, in: Proceedings of the 34th Applied Imagery and Pattern Recognition Workshop, Washington, DC, 19–21 Oct. 2005.
3. N.C. Wild, F. Felber, M. Treadaway, F. Doft, D. Breuner, S. Lutjens, Ultrasonic through-the wall surveillance system, in: Proceedings of the SPIE Conference on Enabling Technologies for Law Enforcement and Security, Vol. 4232, Boston, MA, 5–8 Nov. 2000, pp. 167–176.
4. E.F. Greneker, RADAR flashlight for through-the-wall detection of humans, in: Proceedings of the SPIE Conference on Targets and Backgrounds: Characterization and Representation IV, Vol. 3375, Orlando, FL, 13–15 April 1998, pp. 280–285.
5. Synthetic aperture beamformer for imaging through a dielectric wall;Ahmad;IEEE Trans. Aerosp. Electron. Syst.,2005