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Defense Intelligence Reference Document High-Frequency Gravitational Wave Communications

Defense Intelligence Agency · 57 pages · text from the file's own layer

This Defense Intelligence Reference Document was prepared by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) program, is dated 6 April 2010 and is part of a series of advanced technology reports produced in FY 2009. It reviews proposed laboratory generators and detectors of high-frequency gravitational waves for communications. It favors an infrared-excited molecules transmitter and the Li-Baker detector, estimating about 1.9 million bits per second over 7,000 km through the Earth. It also discusses timing standards and interplanetary navigation uses.

  • p. 36 …It will make us think a little harder about what we really mean by time," Kleppner…
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Mars
R0 m = Earth to Mars Max range 1AU + 1.5 AU = 2.5 AU
R1c = 384,400 km = .00257 AU
8
Moon
GW, i
"Sun
0max ~ Rio / Rem rad
- 60 mdeg
Figure 26. A GW Pair on Earth and on the Moon, as Used by a Mission to Mars
Range to Jupiter 5.2AU +/- 1.5AU
Range to Saturn 9.6AU +/- 1.5 AU
Earth
0 Sun
Jupiter
Ji),
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(Rem / 2RJuI) rad
- 28 deg
Saturn
Figure 27. A GW Pair on Earth and on Mars for an Outer Planetary Reference Pair
35
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Report, from the dia collection. The PDF is mirrored here; the original link is above. 57 pages are in the text index: search them above, or from the library's search.