Defense Advanced Research Projects AgencyTagged Content List

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01/01/1993
In character with President Clinton’s emphasis on economic growth, the Department of Defense restored DARPA’s original name, ARPA, to, in the words of a letter distributed by William Perry, then Deputy Secretary of Defense, “to expand the agency’s mission to pursue imaginative and innovative research and development projects having a significant potential for both military and commercial (dual-use) applications.” In 1996, the Agency again would pick up that D, for Defense, and become known once again as DARPA.
01/01/1958
On February 7, 1958, Neil McElroy, the Department of Defense Secretary, issued DoD Directive 5105.15 establishing the Advanced Research Projects Agency (ARPA), later renamed the Defense Advanced Research Projects Agency (DARPA). The Agency’s first three primary research thrusts focused on space technology, ballistic missile defense, and solid propellants
01/01/1996
The Geographic Synthetic Aperture Radar (GeoSAR) program was an airborne radar-based project for simultaneously mapping foliage canopies along with the terrain underneath the canopies. Begun in 1996, the program outfitted a commercial Gulfstream II business jet with a dual-band (P-band and X-band), dual-sided, interferometric mapping radar, designed to efficiently map wide-areas in a single pass of the aircraft.
01/01/1960
In 1960, ARPA helped establish what now is the burgeoning field of materials science and engineering by announcing the first three contracts of the Agency’s Interdisciplinary Laboratory (IDL) program. Following these initial four-year renewable contracts to Cornell University, the University of Pennsylvania, and Northwestern University, the Agency awarded nine more IDL contracts around the country. The program lasted just over a decade when, in 1972, the National Science Foundation (NSF) took over the program and changed its name to the Materials Research Laboratories (MRL) program.
01/01/1991
In the early 1990s, DARPA developed an airborne, all-weather, radar-based mapping capability that generated maps of the terrain with an accuracy to within six feet of elevation and that could do so day or night, and in adverse weather conditions, such as thick cloud cover or rain. Under DARPA sponsorship, the Environmental Research Institute of Michigan (ERIM) carried out the project and mounted an interferometric radar system on a Learjet 36A to collect data, which was then processed on the ground into digital elevation models.