| US 7,595,749 B2 | ||
| Method and device for relative time and position determination for moving objects based on one-way and two-way measurements | ||
| Tanja Rang, Grasbrunn (Germany); and Hans L. Trautenberg, Ottobrunn (Germany) | ||
| Assigned to EADS Astrium GmbH, Munich (Germany) | ||
| Filed on May 18, 2007, as Appl. No. 11/802,074. | ||
| Claims priority of application No. 10 2006 025 250 (DE), filed on May 29, 2006. | ||
| Prior Publication US 2007/0273579 A1, Nov. 29, 2007 | ||
| Int. Cl. G01S 1/00 (2006.01); G01C 21/00 (2006.01); G05D 1/02 (2006.01); H04B 7/19 (2006.01) | ||
| U.S. Cl. 342—357.01 [701/226; 701/300; 455/13.2] | 10 Claims |
| 1. A method for transmitting and receiving signals among moving objects of a constellation, comprising:
determining a maximum permissible signal transmission time from a shortest distance between said objects of the constellation,
sending a unique coded signal from one object of the constellation simultaneously with unique coded signals from the other
objects of the constellation,
concluding transmission of each of the unique coded signals within said maximum permissible signal transmission time,
receiving the unique coded signals from said other objects of the constellation at said one object, and
decoding the unique coded signals received to ascertain which of said other objects of the constellation sent each of the
unique coded signals.
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