Radio direction finder with array element signal processing

Details Radio direction finder with array element signal processing Radio direction finder with array element signal processing

1976-07-22

1977-07-05

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 16R, 343112C, 343113R, G01S 302

Patent

active

040343766

ABSTRACT:
A radio navigational device for determining the angle of a mobile craft by analyzing the signals arriving at each element of a linear array of n equally spaced elements. A series of received R.F. pulses emanating from the mobile craft by transmission or reflection provide contemporaneous signals at the antenna elements with a phase difference .psi. between successive elements in accordance with the angle of arrival of the R.F. pulses. Using "zero" IF techniques, each signal of the series is processed to provide signal outputs in I and Q form. Sequential or parallel sampling of these I and Q signals provides a synthesized scanning beam signal from which .psi. is determined.

REFERENCES:
patent: 3696427 (1972-10-01), Nard
patent: 3924236 (1975-12-01), Earp et al.

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