Accession Number:

AD0639295

Title:

THE AGREEMENT IN RANGE AND BEARING REPORTS FROM TWO VF RADAR REPEATERS TRACKING THE SAME TARGET SIMULTANEOUSLY WITH THE B-SCOPE.

Descriptive Note:

Memorandum rept.

Corporate Author:

JOHNS HOPKINS UNIV BALTIMORE MD PSYCHOLOGICAL LAB

Personal Author(s):

Report Date:

1947-02-20

Pagination or Media Count:

13.0

Abstract:

The error indices for stationary targets developed in this study agree generally with the error indices cited in the Preliminary Instruction Book for Navy Model VF indicating equipment. Fifty-six percent of the bearing reports from two VF repeaters were in exact agreement for a stationary target, and in no case was the disagreement greater than one degree. With respect to range reports, 19 were in exact agreement, 56 agreed within 20 yards, and all reports agreed within 100 yards. When contacts are moving, these data are not appropriate. For example, for targets with a relative speed of 80 knots, only 39 of the bearing reports were in exact agreement, and only 41 of the range readings agreed within 100 yards. The agreement between two VF reports decreases markedly as the speed of a target is increased. The reliability of a single report of the position of a contact depends then upon the relative motion of that contact with respect to the position of the radar. Author

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE