High resolution beam former apparatus

Details High resolution beam former apparatus High resolution beam former apparatus

1992-07-20

1993-07-13

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

342368, G01S 1500

Patent

active

052280063

ABSTRACT:
An array of receiver elements in a radar or sonar system is synthetically elongated resulting in a narrower beam pattern. This is accomplished by sampling each output signal of the receiver elements, converting the signal to I and Q components for determination of a magnitude and phase angle. The phase angle is modified by a certain phase modulation factor f.sub.m and new I and Q components are calculated using the modified phase angle. The modified I and Q components from all of the received elements are combined for display purposes.

REFERENCES:
patent: 4947176 (1990-08-01), Inatsune et al.

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