Method for determining phase correction values in radar apparatu

Details Method for determining phase correction values in radar apparatu Method for determining phase correction values in radar apparatu

1999-04-09

1999-12-07

Tarcza, Thomas H.

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

Testing or calibrating of radar system

By monitoring

342165, 342368, G01S 740

Patent

active

059991208

ABSTRACT:
The present invention relates to a method for determining a phase correction value in a radar apparatus provided with an array antenna comprised of a plurality of antenna elements as a receiving antenna. The method for determining the phase correction value according to the present invention has a first step of obtaining a first correction value for each channel for correcting a phase shift between channels of the plural antenna elements, a second step of obtaining a second correction value for each channel for correcting a deviation between an electrical center direction and a front direction obtained with phase correction using the first correction values, and a third step of obtaining a final correction value for each channel from the first correction value and the second correction value, and the method determines such a phase correction value as to match the direction of 0.degree. with the electrical center direction for each channel.

REFERENCES:
patent: 5063529 (1991-11-01), Chapoton
patent: 5111208 (1992-05-01), Lopez
patent: 5592179 (1997-01-01), Windyka
"Method for Detecting Errors of DBF Radar", Toyota Technical Reports, pp. 349-351 (Toyota Gijutsu Kokaishu Issue No. 7294, issued Dec. 25, 1997).

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