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Partner Project #P389 was started for execution on 2010 at the
A.Ya.Usikov Institute of Radiophysics and Electronics National
Academy of Sciences of Ukraine (IRE
NASU) according to the Contract with the Science and
Technology Center of Ukraine (STCU).
P389 STCU project was executing during 2010-2014 years, and was suspended in
2014.This moment the project is still at the suspended state and is at the stage
near the main objective finalisation, which was formulated as the
task of development and testing of a prototype of the passive
(radiometric) multi-beam imaging system on the base of rotating diffraction
type antenna.
The
main objectives of this R&D project were the next:
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Due
to rather low absorption in fabric materials of clothes, millimeter
band electromagnetic waves (MMW) can serve for security and customs
services as an additional source of operative and remotely obtained
information concerning any irrelevant "discontinuity" located on
human body under clothes, likewise about dimensions and shapes of
such discontinuity. Based on reception of people's and objects' own
heat radiation in radio band the method of passive (radiometric)
supervision should be expected to be the prospective because not
connected with generation at public places any additional high
intensity electromagnetic fields.
-
Millimeter wave cameras have proven their value for inspection of
contraband under clothing, and because they are passive instead of
actively radiating system, such MMW inspections can be done
surreptitiously and with no health risks to those inspecting or
inspected. While MMW cameras have been well researched and are made
by number of firms in technologically advanced countries, the main
issue preventing their wide-spread adoption is the cost and
complexity of MMW installations which are usually unmoved, and the
technical difficulties attendant with their low spatial resolution and
limited frame
rates.
-
One
way of increasing resolution and frame-rates is by splitting the
antenna pattern on some beams along an axis co-focused on the
observation plane and synchronously moving this combined pattern in
space by any way over a single MMW receiving device in the system.
Open electrodynamics structure based on the principles of
volume-to-surface electromagnetic waves conversion as receiving
aperture was proposed in scanning antenna with electromechanical
beam control. Due to specific dispersing properties inherent to this
electrodynamics structure and utilization the principles of
frequency beam splitting, large number of independent antenna beams
could be formed in radiometric system.
The
P389 project team was formed mainly on the base of IRE NASU
employees and initially was consisted from 20 participants (10
principal participants) with high level
qualification and professional skills, 8 of which have PhD degree.
During
the term of the P389 project execution 4 identical samples
(prototypes) of scanning W-band passive imaging system were
developed and built, appropriate operational tests of them were
provided, the main parameters of the system were measured and
evaluated. Some propositions and ways for the system improvement
were formulated. On 2014 two additional STCU projects were generated
and approved for implementation, but they were not started because of lack of
recourses. These additional projects were formulated as the next:
-
P630
project as "Creation and design of diffraction type antenna based on
non-uniform diffraction grating".
-
P631
project as "Passive radiometric scanner for people supervision
improvement on the base of cryogenically cooling low-noise
amplifier".
These
new projects have obtained all needed permissions and conditions for
execution in Ukraine and may be started any moment.
Developed products have appropriate Certificates in Ukraine for
export.
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