Abstract

A method of formulating ternary-valued (−1,0,1) correlation filters based on the ratio of spectral energies of target and nontarget patterns is proposed, and performance of such filters is investigated by computer simulations of correlation. The results confirm the intuitive expectation that such filters can enhance signal-to-clutter and discrimination performance for target recognition in the presence of large amounts of input noise. These filters may be viewed as an extension of binary phase-only filters and similarly are motivated by the prospect of near-term real-time implementation.

© 1988 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Multilevel phase- and amplitude-encoded modified-filter synthetic-discriminant-function filters

RuiKang Wang and Chris R. Chatwin
Appl. Opt. 34(20) 4094-4104 (1995)

Modified filter synthetic discriminant functions for improved optical correlator performance

R. K. Wang, C. R. Chatwin, and M. Y. Huang
Appl. Opt. 33(32) 7646-7654 (1994)

Improved correlation discrimination using an amplitude-modulated phase-only filter

Abdul Ahad S. Awwal, Mohammad A. Karim, and Syeda R. Jahan
Appl. Opt. 29(2) 233-236 (1990)

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 (2)

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

Metrics

You do not have subscription access to this journal. Article level metrics 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