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Title: Real-time optical processor for synthetic aperture radar image formation

Abstract

An acousto-optic processor which forms synthetic aperture radar images in real-time is described. It employs a space and time integrating architecture to perform the required two dimensional matched filtering operation as a sequence of one dimensional processes. The matched filtering in range is performed on each radar return pulse using the acousto-optic device. The azimuthal matched filtering is performed using a fixed reference mask and a charge-coupled device operating in the time delay and integrate mode. This fixed mask architecture has been modified to include a background subtraction capability to reduce the effects of unwanted bias terms on image quality. The effectiveness of this technique will be analyzed for two different time bandwidth product cases. SAR imagery formed using the real-time optical processor is also presented.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (USA)
OSTI Identifier:
6482956
Report Number(s):
SAND-87-1268C; CONF-870584-8
ON: DE87010744
DOE Contract Number:
AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: SPIE technical symposium on optics and optoelectronics, Orlando, FL, USA, 15 May 1987; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING; SYNTHETIC-APERTURE RADAR; IMAGE PROCESSING; SIGNAL CONDITIONING; CHARGE-COUPLED DEVICES; FILMS; REAL TIME SYSTEMS; RESOLUTION; MEASURING INSTRUMENTS; PROCESSING; RADAR; RANGE FINDERS; SEMICONDUCTOR DEVICES; 440300* - Miscellaneous Instruments- (-1989); 420800 - Engineering- Electronic Circuits & Devices- (-1989)

Citation Formats

Stalker, K.T., Molley, P.A., and Dickey, F.M. Real-time optical processor for synthetic aperture radar image formation. United States: N. p., 1987. Web.
Stalker, K.T., Molley, P.A., & Dickey, F.M. Real-time optical processor for synthetic aperture radar image formation. United States.
Stalker, K.T., Molley, P.A., and Dickey, F.M. Thu . "Real-time optical processor for synthetic aperture radar image formation". United States. doi:.
@article{osti_6482956,
title = {Real-time optical processor for synthetic aperture radar image formation},
author = {Stalker, K.T. and Molley, P.A. and Dickey, F.M.},
abstractNote = {An acousto-optic processor which forms synthetic aperture radar images in real-time is described. It employs a space and time integrating architecture to perform the required two dimensional matched filtering operation as a sequence of one dimensional processes. The matched filtering in range is performed on each radar return pulse using the acousto-optic device. The azimuthal matched filtering is performed using a fixed reference mask and a charge-coupled device operating in the time delay and integrate mode. This fixed mask architecture has been modified to include a background subtraction capability to reduce the effects of unwanted bias terms on image quality. The effectiveness of this technique will be analyzed for two different time bandwidth product cases. SAR imagery formed using the real-time optical processor is also presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}

Conference:
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