Cédric Le Bastard Vincent Baltazart Yide Wang Modified ESPRIT (M-ESPRIT) algorithm for time delay estimation in both any noise and any radar pulse context by a GPR radar. 173-179 2010 90 Signal Processing 1 http://dx.doi.org/10.1016/j.sigpro.2009.06.007 db/journals/sigpro/sigpro90.html#BastardBW10