Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical Processing of Radar Signals with Fresnel Diffraction Masks

Not Accessible

Your library or personal account may give you access

Abstract

A simple real-time coherent optical processor is investigated. The processor uses a filter mask upon which is recorded the Fresnel field of the signal replica. Target range-Doppler information is obtained by observing the time and position of the output. A distinguishing feature of the processor is that for the ordinary PCW pulse, these output quantities are correlated, albeit weakly, in much the same fashion as the range-Doppler estimates associated with the output of the linear FM correlator. This interesting property is shown to depend on a single optical parameter. A modified optical configuration that enables a greater practical exploitation of this property is suggested. To obtain unbiased target range estimates, two output terms must be observed, but the range estimate thus obtained has a lower variance than the estimate obtained from either output.

© 1971 Optical Society of America

Full Article  |  PDF Article
More Like This
Multichannel optical correlator for radar signal processing

David Casasent and Edward Klimas
Appl. Opt. 17(13) 2058-2063 (1978)

Optical processing of pulsed Doppler and FM stepped radar signals

David Casasent and Francisco Casasayas
Appl. Opt. 14(6) 1364-1372 (1975)

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 Optica member, or as an authorized user of your institution.

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

Figures (6)

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

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

Equations (32)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved