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SHIRAN - AN/USQ-32 MICROWAVE GEODETIC SURVEY SYSTEM
The AN/HSQ-32 system, commonly referred to as Shiran
(S-band Hiran), has been developed by the Cubic Corporation
of San Diego, California, under direction of the Systems
Engineering Group of Dayton, Ohio. Development of the
system was initiated 28 February 1962. A three (3) phase
program was established to achieve the objectives. Primary
objectives were to fabricate two (2) developmental models
meeting design requirements and to evaluate the system
under controlled conditions simulating operational missions.
Aerospace ground equipment and training requirements were
also determined under the program. Phase I - Systems Anal
ysis & Preliminary Design - consisted of investigations
performed on possible problem areas, an error analysis and
a survey of the component part state-of-the-art with the
purpose of fixing the system design prior to actual hardware
fabrication. Several areas investigated that were of spe
cial Interest were 1) an analysis of multipath propagation
effects, 2) a selection of a method of sequencing the range
measurements, and 3) an analysis of the dynamic effects of
aircraft velocity and acceleration on the range measurement
accuracy. Phase II - Development of System - consisted
primarily of fabrication of the hardware, laboratory test
ing, and evaluation. Included under this phase was a