Title :
Airborne transfer alignment simulation results
Author :
Farrell, James L.
Author_Institution :
Westinghouse Defense & Electron. Syst. Center, Baltimore, MD, USA
fDate :
29 Nov-2 Dec 1988
Abstract :
The author addresses transfer alignment for synthetic aperture radar (SAR) under conditions of nonrigidity between the master INS (inertial navigation system) and the radar antenna. A generic transfer alignment simulation is described, with results given for sample cases with and without rotational vibration. The author presents a design concept representing a radical departure from preceding approaches to SAR transfer alignment: Kalman updates are allowed during a frame. This allows small high-frequency changes in the velocity history so that buildup of low-frequency errors will be counteracted
Keywords :
aerospace simulation; inertial navigation; radar antennas; radar systems; INS; Kalman updates; SAR; airborne transfer alignment simulation; generic transfer alignment simulation; inertial navigation system; nonrigidity; radar antenna; rotational vibration; synthetic aperture radar; Acceleration; Costs; Degradation; Delay; History; Instruments; Kalman filters; Radar antennas; Synthetic aperture radar; Uncertainty;
Conference_Titel :
Position Location and Navigation Symposium, 1988. Record. Navigation into the 21st Century. IEEE PLANS '88., IEEE
Conference_Location :
Orlando, FL
DOI :
10.1109/PLANS.1988.195493
