Method and apparatus for direction finding

Details Method and apparatus for direction finding Method and apparatus for direction finding

2005-05-03

2008-09-23

Tarcza, Thomas H. (Department: 3662)

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

Directive

Beacon or receiver

Reexamination Certificate

active

07427954

ABSTRACT:
A direction finding system is used in which a number of adjacent bands are sequentially measured in fast rotation, with the results from each of the bands being FFT processed to provide amplitude and phase information on all of the signals existing within the band. Upon ascertaining that one wishes to do a direction finding process, one merely accesses the information in the delay memory so that direction finding resources are only allocated to signals of interest and such that one does not have to re-do an FFT upon finding a signal of interest.

REFERENCES:
patent: 4333170 (1982-06-01), Mathews et al.
patent: 4639733 (1987-01-01), King et al.
patent: 6765532 (2004-07-01), Vaccaro et al.

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