Real-time optical processor for synthetic aperture radar image formation

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:6482956

Stalker, K T; Molley, P A; Dickey, F M

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.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6482956
• Report Number(s): SAND-87-1268C; CONF-870584-8; ON: DE87010744
• 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

Related Subjects

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)