Difference-in-time-of-arrival direction finders and signal sorte

Details Difference-in-time-of-arrival direction finders and signal sorte Difference-in-time-of-arrival direction finders and signal sorte

1993-02-19

1993-11-09

Blum, Theodore M.

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

Directive

Including a steerable array

H01Q 322

Patent

active

052607119

ABSTRACT:
A difference-in-time-of-arrival direction finder includes auto-correlation means that includes means for substantially reducing, at the output of the auto-correlation means, the unwanted noise power of all uncorrelated unselected incoming radio-waves received at two spaced antennas that arrive from any direction other than a certain direction with respect to the wanted signal correlated power of that selected one incoming radio-wave arriving from the certain direction with respect to the line connecting the antennas specified by a given signal time delay provided by a delay line associated with one of the antennas.

REFERENCES:
patent: 4204655 (1980-05-01), Gulick et al.
patent: 4656642 (1987-04-01), Apostolos et al.
patent: 4888593 (1989-12-01), Friedman et al.
patent: 5041836 (1991-08-01), Paschen et al.
patent: 5107273 (1992-04-01), Roberts

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