Inertial instrumentation correction technique

Details Inertial instrumentation correction technique Inertial instrumentation correction technique

1980-10-02

1998-05-26

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Automatic guidance

F41G 734

Patent

active

057554005

ABSTRACT:
A technique for deriving correction signals for inertial instruments on a missile, such as an intercontinental ballistic or a cruise missile, is shown to include: a radar operative in a synthetic aperture mode when the missile approaches a predetermined area containing at least three separate fixed terrain features whose radar signatures (as observed from a preselected position) have been predetermined and stored on the missile; successively illuminating each one of such features and comparing the actual radar signals with the stored radar signatures; and deriving correction signals for the inertial instruments in accordance with the difference between the actual and stored radar signals.

REFERENCES:
patent: 3421716 (1969-01-01), Altekruse et al.
patent: 3879728 (1975-04-01), Wolff
patent: 4163231 (1979-07-01), Zuerndorfer et al.
Novak, "Correlation Algorithms for Radar Map Matching" IEEE Transactions on Aerospace & Electronics Systems; vol. AES-14, #4, 1978.

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