Enhanced emitter location using adaptive combination of time...

Details Enhanced emitter location using adaptive combination of time... Enhanced emitter location using adaptive combination of time...

2003-01-15

2004-07-06

Phan, Dao (Department: 3662)

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

Directive

Beacon or receiver

C342S442000

Reexamination Certificate

active

06759981

ABSTRACT:

BACKGROUND OF THE DISCLOSURE
Interferometer arrays are used to provide accurate localization of emitters. Most systems support a limited number of simultaneous interferometer channels over several antenna elements resulting in ghosting and degraded localization particularly in dense emitter environments. Current implementations also depend on the accurate de-interleaving of pulse trains from different emitters.
Prior attempts depended on de-interleaving pulse trains and could coherently combine only a limited number of interferometer elements resulting in significantly larger error rates and poorer precision.
SUMMARY OF THE DISCLOSURE
An interferometer array system for processing pulse signals from a target emitter includes an n element interferometer array of radiator elements for producing radiator signals in response to the pulse signals from the target emitter. M processing channels process radiator signal elements, where m<n. A switch matrix is connected between the array and the processing channels, switching different combinations of the radiator elements to the channels within a single pulse to achieve processing of all radiator signals within a single pulse of said pulse signals from the target emitter.


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patent: 6313794 (2001-11-01), Rose

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