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Synthetic Aperature Radar (SAR) is a unique method of improving the
azimuth resolution capabilities of SLAR. Radar resolution in the azimuth
is function of the transmitting antenna length. Aircraft are limited to the
physical size of an antenna that can be carried aloft, thereby limiting the
azimuth resolution. SAR is a technique used to synthesize a much longer
antenna by utilizing the foward motion of the platform, thereby grea M
improving the azimuth resolution. Because of the impoved resolution SA
provides a capability to collect fine detailed information over vast areas
in short periods of time. —
This radar information is in both analog (hardcopy) and digital formats.
The AIMS system will be able to utilize the more advantagous exploitation
potentiel © either or both formats depending on the particular application
and situation.
AIMS INTEGRATION CONCEPT
In the development of the overall AIMS concept a number of important
considerations were evaluated:
. the majority of radar exploitation tasks today and a significant amount
of the companion visual spectrum imagery in the near future will still be
in harcopy form, consequently a system that will process and exploit radar
imagery should have the attributes to handle both analog and digital image
ormats.
digital image processing has advanced to the point to where the
[hi adration of high resolution display and processing systems as well as
pare iei Processing have made it possible to perform near real-time
exploitation.
low cost, precision devices to convert analog imagery sources to a
digital format are readily available. These devices can perform this
function in a cost effective and reponsive manner.
the precision of analog stereoplotter devices such as Autometric's
APPS-IV far excedes that of digital systems in terms of visual acuity,
point mensuration and quick adaptability to a wide number of potential
users.
the ability of the APPS-IV(with SUPER-P") to superimpose graphic
and/or text over an analog imagery source is a key element in the
feature/change identification and precise location.
until automated processes advance, and become more dependable,it will
be essential to keep the human factor in the exploitation loop.
new capabilities in the areas of automated feature extraction, pattern
recognition, selectable change detection algorithms, rule based expert
systems and overall artificial intelfigence methodologies are rapidly
maturing. The potential for applying these technologies to spatial data
handling are very real.
Ror jie of a Merged Analog/Digital Image Processing/Exploitation
ystem
AIMS offers the unique capabilty of being able to handle and process
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