Method and system for reducing phase error in a phased array rad

Details Method and system for reducing phase error in a phased array rad Method and system for reducing phase error in a phased array rad

1988-10-31

1990-05-08

Tarcza, Thomas H.

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

Testing or calibrating of radar system

By monitoring

342377, G01S 740

Patent

active

049242326

ABSTRACT:
The method and system for reducing phase error of phased array radar beam steering controllers having digitally controlled phase shifters includes the monitoring of individual digitally controlled phase shifter elements, determining an additive phase correction to reduce the number of failed phase shifter elements, determining whether said additive phase correction is achievable by comparing the stuck bit state at each said failed changers element with said additive phase correction and adjusting the phase commands to the nearest values which can be achieved if the additive phase correction is unachievable.

REFERENCES:
patent: H173 (1986-12-01), Claborn et al.
patent: 4060806 (1977-11-01), Davies et al.
patent: 4176354 (1979-11-01), Hsiao et al.
patent: 4488155 (1984-12-01), Wu
patent: 4532518 (1985-07-01), Gaglione et al.
patent: 4652883 (1987-03-01), Andricos
patent: 4700192 (1987-10-01), Zezuto et al.
patent: 4724440 (1988-02-01), Lopez et al.
patent: 4811023 (1989-03-01), Gelernter et al.

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