[1] D. munoz, F. Bouchereau, C. Vargas, and R. Enriquez," Position Location Techniques and Applications ", Elsevier, 2009.
[2] Yndang, chunhaa Hung, and Yizhu, xu "A joint ToA/AoA constrained minimization Method For Locating wireless Devices in Non-Line-of –sight .Environment", IEEE Trans., vol. 58, PP.468-472, Jan. 2009. [3] Taponecioation 'l.; D'Amico, A. A, Mengali, u. ,"Joint ToA and AOA Estimation for UWB Location Applications", IEEE Trans., Vol.60, PP. 2007-2217, July 2011. [4] K. Pahlavan , P. Krishnamurthy, and J. Beneat, "Wideband Radio Channel Modeling for Indoor Geolocation Applications", IEEE comm..mag., val.36, No 4., PP. 60-65. [5] J. Yli-Hietanen, K. Kallio Jarvi, J. Astola , "Low complexity angle of arrival estimation of wideband signals using small arrays", Proceedings of the 8th IEEE signal processing workshop on statistical signal and array processing, June(1996) 109-112. [6] Abdul-Latif,O., Shepherd,P., Pennoch, S, "TDoA/AoA Data Fusion for Enhancing Positioning in an Ultra Wideband System", IEEE Trans. signal Process.,2008,1 531-1534 . [7] Z. Popovic, C. walsh, P. Matyas, C. Dietlein, D. z. Anderson, "Highresolution small-aperture angle of arrival detection using nonlinear analog processing", IEEE International Microwave Symposium Digest, 3(2004)/749-1752. [8] D. Niculescu, B. Nath, Ad hoc Positioning. system (APS) using AoA, Proceedings IEEE INFOCOM, 3 (2003), 1734-1743. [9] D. Niculescu, "Positioning in ad hoc Sensor Networks", IEEE Networks,vol.18 No.4,PP.24-29,2004. [10] N. Patwavi, A.O. Her. I, M .Perkins, N. S. Correal, and R. J. O'Dea, "Relative Location Estimation in Wireless Sensor Networks", IEEE Trans. Signal Process., 51(8), 2003, 2137-2148. [11] J. Werb, and C. Lanzl, "Designing a Positioning System for Finding Things and People Indoors", IEEE spectrum, vol.35, No.9, PP.71-79,