新手
发表于 2025-3-25 05:33:13
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Obstreperous
发表于 2025-3-25 08:54:27
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议程
发表于 2025-3-25 14:44:54
Transmission and Scattering of Short EM Pulsesinterest. This work is being done at the Armament Directorate of Wright Laboratory, Eglin AFB and will be followed with a more extensive effort in cooperation with sister laboratories..Material of interest include sand, soil, concrete, brick and metal. Sources used are Grant Applied Physics HYPS
松驰
发表于 2025-3-25 19:30:07
Ultrafast Switching at the U.S. Army Pulse Power Centertions from impulse radar to communications. This area has come to be known by the title “ultra-wideband” research, and encompasses many disciplines including analytical and numerical electromagnetic modeling, antenna and array design, signal processing, broadband circuit design, and switching techno
控制
发表于 2025-3-25 23:50:41
Environmental Logging with A Borehole Radar Toolstivities. Dry igneous bedrock, tight metamorphic bedrock and crystalline salt have attracted attention as potential repositories for chemical and nuclear waste. In addition, many landfills and chemical storage facilities are sited in or above a hard, resistive bedrock whose intricate fracture netwo
HAIRY
发表于 2025-3-26 01:25:17
Evolution of the Army Research Laboratory Ultra-Wideband Test Bedrge measure these early efforts were disappointing because of the lack of appropriate technologies. Recent developments in Analog-to-Digital (A/D) converter technology, source technology, and signal processing power have presented new opportunities in this area. The Army Research Laboratory (ARL) be
MELON
发表于 2025-3-26 05:37:49
Ultra-Wideband Impulse SAR for Foliage and Ground Penetrationtions since the early 1970s. Early work included archaeological exploration in Egypt, rain forest terrain surveys in Indonesia, and a helicopter survey of the Alaska pipeline. These early projects typically involved downward-looking line profiles, but more recently SRI began to develop synthetic ape
轻推
发表于 2025-3-26 09:19:21
Ultra-High-Resolution Radar DevelopmentC radar has been developed at Miramar, California under contract to the Naval Surface Warfare Center, Dahlgren Division, and is sponsored by ARPA’s Defense Sciences Office. It is an L-band Track-While Scan (TWS) radar with a nominal detection range of 25 + kilometers on a 1 sqm. target, a range reso
Dorsal
发表于 2025-3-26 13:22:42
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RENIN
发表于 2025-3-26 18:15:57
Ultra-Wideband, Polarimetric Radar Studies of Spilling Breakersthe statistical properties of electromagnetic backscatter from the sea surface at a particular radar frequency, it is difficult, if not impossible, to use such data to predict the characteristics of ultrawideband sea clutter. This paper describes an ultrawideband, Polarimetric radar system designed