Abstract

Empirical data for the minimum signal voltage for a pip on a P-7 radar screen have been described as a function of the exposure time of the pip. This has been done for two bias levels for the CRT—a dim scope and a bright scope. From the measurements it is concluded that there is a more marked gain in visibility with increased exposure time for the bright screen than for the dim one, but that on the bright screen visibility probably approaches its maximum at a shorter exposure time. Two turning rates for the sweep were used. And it may be concluded that, for any exposure time or for either brightness of screen (CRT bias) the slower turning rate yields improved signal detection.

© 1949 Optical Society of America

Full Article  |  PDF Article
Related Articles
Visibility on Cathode-Ray Tube Screens: Viewing Angle*

Stanley B. Williams
J. Opt. Soc. Am. 39(9) 782-785 (1949)

A Device for Simulating the Visual Displays of PPI Scopes*

John L. Brown and A. Leonard Diamond
J. Opt. Soc. Am. 43(12) 1143-1146 (1953)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription