Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1985-05-28
1988-01-05
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
342380, 342378, G01S 316, G01S 328
Patent
active
047179198
ABSTRACT:
An adaptive antenna comprising at least two sensors for receiving electromagnetic signals and for producing first signals; the antenna further including divider means for dividing each first signal into respective second and third signals; weighting means for modifying each respective second signal according to a quantized weighting function; summing means for summing the respective second signals to provide a fourth signal; means for producing a system feedback signal in response to the fourth signal; limiter means for limiting the dynamic range of the system feedback signal; correlator means for correlating the respective third signals with the limited system feedback signal to produce respective correlator output signals; means for determining the signal environment power level of the far field sensed by the at least two sensors and for providing a fifth signal substantially corresponding to 1/.sqroot.P, where P is the signal power level incident on the adaptive array; and means for modifying the weighting function based upon the correlator output signals and the fifth signal.
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Chang Donald C. D.
Cherrette Alan R.
Blum Theodore M.
Hughes Aircraft Company
Karambelas A. W.
Meltzer M. J.
Mitchell S. M.
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