US 12,332,360 B2
System and method for surveying a non-stationary platform subject to thermal expansion
Matt Keti, Alta Loma, CA (US); and Jason Burke, Placentia, CA (US)
Assigned to Raytheon Company, Arlington, VA (US)
Filed by Raytheon Company, Waltham, MA (US)
Filed on Dec. 15, 2022, as Appl. No. 18/066,395.
Prior Publication US 2024/0201397 A1, Jun. 20, 2024
Int. Cl. G01S 19/41 (2010.01); G01S 19/15 (2010.01)
CPC G01S 19/41 (2013.01) [G01S 19/15 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining an initial survey of multiple receivers located on a dynamic platform;
obtaining sensor readings from the multiple receivers; and
validating, using a differential calculator, the initial survey by:
selecting a reference receiver and a target receiver from among the multiple receivers; and
calculating, based on the sensor readings and baselines between the reference receiver and one or more remaining receivers, a platform attitude, platform thermal expansion state, and survey error values corresponding to the target receiver.