Method of and apparatus for position location and tracking of a

Details Method of and apparatus for position location and tracking of a Method of and apparatus for position location and tracking of a

1996-08-09

1998-08-18

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342432, 342389, G01S 504

Patent

active

057963665

ABSTRACT:
This disclosure deals with processing radio-frequency navigation signals, particularly Loran-C signals, from crossed loop antennas (H-field antennas) by shifting the signal phase from two loops to be in quadrature with respect to each other and adding them together to achieve omnidirectivity of the antenna pattern during the acquisition mode; using the stronger signal of the two during the cycle selection mode to determine the polarity of the received signals; and calculating the relative bearing angles on transmitting stations to determine, with measured bearing, the orientation of the loop antenna with respect to these stations.

REFERENCES:
patent: 4054881 (1977-10-01), Raab
patent: 4489327 (1984-12-01), Eastwell

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