| US 7,579,828 B2 | ||
| Procedure for location of mobile magnetic targets | ||
| Pierre Laforest, Toulouse (France); and Pascal Manet, Venelles (France) | ||
| Assigned to Commissariat a l'Energie Atomique, Paris (France) | ||
| Filed on Nov. 29, 2005, as Appl. No. 11/290,790. | ||
| Claims priority of application No. 04 52831 (FR), filed on Dec. 01, 2004. | ||
| Prior Publication US 2009/0039871 A1, Feb. 12, 2009 | ||
| Int. Cl. G01B 7/14 (2006.01); G01R 33/00 (2006.01); G01C 21/00 (2006.01) | ||
| U.S. Cl. 324—207.11 [702/150] | 35 Claims |
| 1. A method for locating a mobile magnetic target using magnetic measurements performed with mobile magnetic detection means,
which includes:
a)—a determination at a moment in time t1 of a first position range of said mobile target with said mobile magnetic detection means, and a second position range of
said mobile target at a later moment in time t2, with said mobile magnetic detection means,
b) calculation of a target velocity component of said mobile magnetic target along a direction and of a theoretical position
range of the target with respect to a trajectory of said mobile magnetic detection means, defined relative to said direction
as a function of said velocity component, at a subsequent theoretical moment in time t3,
c)—a determination of a third position range of said mobile magnetic target with said mobile magnetic detection means moving
along said theoretical position range, and a determination of an approached position and of the trajectory of said mobile
magnetic target, as a function of said first, second and third position ranges.
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