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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