On-board navigation system for an aerial craft including a synth

Details On-board navigation system for an aerial craft including a synth On-board navigation system for an aerial craft including a synth

1993-09-03

1996-01-16

Chin, Gary

Boots, shoes, and leggings

364454, 364456, 342 25, 342 64, G06F16500

Patent

active

054853842

ABSTRACT:
On-board navigation system for an aerial craft of the type including an SAR synthetic aperture sideways looking radar (12). According to the invention, computing device (18) express the alignment deviation as a function of the estimation error vector .DELTA.U associated with the state vector U consisting of the components of the vectors P, V for the position and relative velocity of the vehicle, in the form of a noise-affected observation, a KALMAN-BUCY filter with gain matrix K computing the estimate of the vector of estimation errors.

REFERENCES:
patent: 4495580 (1985-01-01), Keearns
patent: 4520445 (1985-05-01), Keearns
patent: 4692765 (1987-09-01), Politis et al.
patent: 5272639 (1993-12-01), McGuffin
IEEE Transactions on Aerospace and Electronic Ssytems, Mostafavi et al., "Image Correlation With Geometric Distortion," vol. AES14, No. 3, May 1978, pp. 487-500, New York.
IEEE Plans '90 Position Location and Navigation Symposium, Las Vegas, 20-23 Mar., 1990, Bevington et al., "Precision Aided Inertial Navigation Using SAR and Digital Map Data," pp. 490-496.

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