Radio navigation with separate correlated scans to avoid reflect

Details Radio navigation with separate correlated scans to avoid reflect Radio navigation with separate correlated scans to avoid reflect

1976-03-19

1977-08-09

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343108M, G01S 154, G01S 116

Patent

active

040414922

ABSTRACT:
Where a signal reflective fixed obstruction is present in a subsector of a navigation angle sector in which guidance is required, scanning beams are employed including a main scan which is scanned over most of the navigation angle sector and an auxiliary scan which is scanned only over the obstruction subsector. The scan signals are received and correlated by the aircraft to distinguish obstruction subsector signals to thereby avoid reflection interference.

REFERENCES:
patent: 2112283 (1938-03-01), Fritz
patent: 3757337 (1973-09-01), Litchford

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