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Project 6.1 - Accurate Location of an Electromagnetic Pulse Source =
E. A. Lewis
OBJECTIVE
“-
To utilize the electromagnetic signal originating from nuclear
weapon detonation to determine ground zero of detonation.
Secondarily
to obtain the yield data that is available in the bomb pulse,
PROCEDURE
Location of ground zero is made by use of an inverse Loran principle.
The exact time the bomb pulse is received at various stations
is recorded.
The exact time difference in receipt of the electromag-
J
netic pulse between two stations will be used to determine a hyperbolic curve which runs through ground zero.
The point of intersection
of two or more curves determines ground zero.
There are two systems.
One of the systems is known as the long
base line system and the other, the short base line system.
system has two sets of stations.
Fach
The long base line has one set of
stations located in the Hawaiian Islands (Midway, Palmyra, and Maui)
with synchronizing antenna station at Haiku, Maui, and the other set
of stations in the States (Harlingen, Texas; Blytheville, Arkansas;
Kinross, Michigan and Rome, New York) with synchronizing antenna
station at Cape Fear, North Carolina.
The short base lines have one
set of stations located in the Hawaiian area (Kona, Hawaii; Papa, Hawaii;
and Red Hill, Maui) the other set in California (Pittsburg, Woodland, and
Maryville).
RESULTS
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Short base line,