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4 Electronics
Pages 37-47

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From page 37...
... During each presentation, the panel engaged in question-and-answer sessions with the presenter, ­ and a general discussion with CERDEC staff after the panel had formulated initial impressions and developed additional questions during its closed-session deliberations, conducted after the CERDEC staff had concluded their presentations. COMMUNICATIONS–ELECTRONICS RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER Project: A Mathematical Transformation from Metamaterial to Matching Circuit for a Conformal Antenna A matter of strategic and tactical importance to soldiers is command and control on the battlefield.
From page 38...
... The proposed research has demonstrated the ability for a properly impedance-matched antenna to provide an adequate far-field pattern; however, antenna pattern validation was initially conducted at a single frequency. While broadband impedance matching was achieved (500 MHz – 1,000 MHz)
From page 39...
... Changing how humans process the different frequencies of light may give rise to additional information that may be used in navigation when GPS is not available. The proposed research aims to address this problem with the development of a stack of optical filters made by a volume hologram recorded in a liquid crystal material sandwiched between transparent conductive coatings, which allow one to control the efficiency of the holographic filter with the application of a proper voltage.
From page 40...
... Several alternative technologies could also support the acquisition of multiple colors, of which the most prominent examples are multispectral and hyperspectral imaging. Nevertheless, for nascent research purposes one convenient technology cited above is holographic liquid crystals used as color filters when operated in transmissive and reflective modes in laboratory-based experiments.
From page 41...
... That has not been articulated in sufficient detail by the researcher to give confidence in the overall color sensing approach, and multispectral or hyperspectral solutions may already exist. However, if bioinspired color features are indeed leveraged, what additional functions could facilitate the navigation competence of those exemplars found in nature, and do those aspects help prescreen the optimal features needed for effective navigation?
From page 42...
... Follow-on work will refine the design and prototyping process, and human trials will establish reduced metabolic impact on solders and added power output. This work could afford future soldiers greater endurance in conjunction with the added features of body armor, sensors, and communications and is consonant with Army modernization priorities for enhanced soldier lethality.
From page 43...
... This program represents the crux of the research goals and represents both the most significant risk to the project and the most significant potential reward. The development of a generalizable algorithm to optimize generator design for power output with reduced mass could have significant and far-reaching impacts for the broader Army community.
From page 44...
... involvement in the design. The Army desires to achieve increased mission duration, enhanced agility, and reduced logistics for the operation of electromagnetic devices, such as motors and generators, as found, for instance, in helicopter rotors and similar electromechanical systems, as well as for other applications for soldier lethality.
From page 45...
... It may also provide better signature detectability, considering that high intensity target illumination may not be suitable for concealed missions, while high-speed sensors and imaging cameras do not perform well at low-illumination intensity. On the other hand, as detailed in the presented results of the studies, modulation of the laser beam at frequencies contiguous with the sensor frame rate reveals the benefit of better signal detectability through anti-aliasing processing of the returned signal and imaging camera.
From page 46...
... Preliminary measurements and analyses of laser signatures and solar clutter indicate the discrimination potential of these findings, but further statistical tests remain to be accomplished to fully prove actual realistic and operationally effective performance through more applied and collaborative research. Future work will address additional sample bench testing as well as upgrading to an expanded set of modeling, field-testing, and simulation efforts.
From page 47...
... Recommendation: CERDEC should collaborate with other Army laboratories, including the Army Research Laboratory and the Army Research Office, to assess and improve research quality, develop staff skills, and make its impact more significant and broader in scope. Recommendation: CERDEC should incorporate suitable tools for assessing research success, including a range of metrics, such as the number of publications in high-impact journals or participation in external panels and boards.


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