| US 7,595,867 B2 | ||
| Mobile radio positioning aided by single fan laser | ||
| Mark E. Nichols, Christchurch (New Zealand); Nicholas C. Talbot, Ashburton (Australia); and Gary L. Cain, Springfield, Ohio (US) | ||
| Assigned to Trimble Navigation Ltd., Sunnyvale, Calif. (US) | ||
| Filed on Dec. 13, 2007, as Appl. No. 12/2,099. | ||
| Application 12/002099 is a continuation of application No. 11/214221, filed on Aug. 27, 2005, granted, now 7,310,138. | ||
| Prior Publication US 2008/0144020 A1, Jun. 19, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G01B 11/26 (2006.01) | ||
| U.S. Cl. 356—139.01 | 6 Claims |
| 6. A method of mobile radio positioning aided by a single fan laser, wherein a rover comprises a mobile radio positioning
system (Mobile RADPS) integrated with a mobile laser detector; and wherein said single fan laser comprises a stationary laser
transmitter integrated with a stationary radio positioning system (Stationary RADPS); said method comprising:
(A3) detecting at least one light pulse generated by said laser transmitter by using said mobile laser detector; wherein each
said light pulse corresponds to one said single sloping fan laser beam strike at said rover's location;
(A4) receiving said averaged low-passed filtered estimate of angular rate of said laser beam, receiving said plurality of
main time tags, and receiving said plurality of additional time tags; and
(B) timing said fan laser beam strike at said rover's location and using said timing of said fan laser beam strike at said
rover's location to improve an accuracy in determination of position coordinates of said rover.
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