Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1987-03-02
1989-02-28
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
342448, 364453, G01S 502
Patent
active
048090077
ABSTRACT:
A navigation method for independently determining direction and for determining course for aircraft with low quality gyros and an external, calibrated magnetic course sensor. The method, which functions in the event of failure of the magnetic course sensor, is based upon the concept of determining, from the magnetic course last determined prior to failure as corrected by the local declination, and the true course as determined by the quotient of the two gyro horizontal axes distorted by the gyro drift, a "synthetic magnetic course" for course support.
REFERENCES:
patent: 2776428 (1957-01-01), Hassler et al.
patent: 3456255 (1969-07-01), Wieland et al.
Blum Theodore M.
Kramsky Elliott N.
Litef GmbH
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