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This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 20 November 2010, was one of a series of advanced technology reports produced in FY 2010 under the Advanced Aerospace Weapon System Applications (AAWSA) Program. It reviews the theory of subsonic, supersonic and hypersonic flow. It then compares electromagnetic, optical, and acoustic and seismic methods for detecting and tracking hypersonic objects, and it makes four recommendations for progress over the next 30 years.
“Low Earth orbit”4 pages
UNCLASSIFIED//F811. 8FFll!l*L 1!1!11!! 8IU:!Y 0 := asin( ~ 1 ) = 11.707-deg 3 T 02 =7.396x!0K This is the Mach angle for a blunt-nosed object. E. Compute the Peak Wavelength of Emitted Infrared Energy 35 1. Using Wien's Displacement Law, compute the peak wavelength of emitted radiation. -1 b:=2.8977685-10 --rn-K 1 ).max= 2.295 x !ff -nm ).max= 2.295-micron -6 ),max= 2.295 x 10 rn 2. Using Planck's Law, compute the distribution of emitted energy with wavelength. Spectral Energy Density for a Black Body Radiator in energy per unit volume per unit oove/ength. UNCLASSIFIED/,·, OK orr1e1111t ~:!IE 8HLV
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 46 pages are in the text index: search them above, or from the library's search.