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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.
“Anderson”2 pages
UNCLASSIFIED//F8R 8PPl!ltllt "St OIILI Detection Method Properties Detected Availability Useful for Detection of: I Distance Velocity Altitude Whole Sky Commercially E,dsting EKpense Meteor Reentry Aircraft I To Target Or Directed Available Network Detection Vehicles Electromagnetic Radar I ' ' ' Both ' ' Modest ' ' 'Radio Reflection Detection Whole Sky ' Low ' 'I Optical I I Sky Cameras, Photographic Whole Sky ' ' Low ' ' 'Infrared I possible Both ' Modest ' ' 'lidar I ' ' Directed ' Medium ' ' 'Chronograph ' Oirectted Low I Acoustic and Seismic 1nfrasound ' ' Whole Sky ' ' Low ' ' 'Seismic I ' ' Whole Sky ' Modest ' ' 'I Figure 19. Comparison of Detection Technology for Hypersonic Objects. LIDAR systems provide detailed information on velocity, temperature, particle velocity, and atmospheric composition along the path of the laser beam that can be used to interrogate vehicle wakes and exhaust plumes. Seismic and infrasound systems continuously operate and can provide information on the path followed by a high-speed aircraft or object by tracking its sonic boom and low-frequency acoustic signature. Finally, optical cameras aimed toward the Earth provide valuable information on hypersonic object tracks by recording their tracks. Aimed toward space, optical cameras are tracking asteroids and other spaceborne objects that may enter the atmosphere as a meteor posing a risk. 32 UNCLASSIFIED/ ,u;oAt OFFIGIPk IP&'i Ollk¥
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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.