Results of Operational Testing of LASS-II (Litton Auto-Surveyor System) Systems.

Abstract

The Defense Mapping Agency has been active in the field of inertial surveying since 1975. More recently, delivery was taken of two Litton Auto-Surveyor System II (LASS-II) units. This paper describes the testing carried out with these two systems over the Cheyenne IPS Test Course and presents a statistical analysis of the results obtained. New mathematical models for the RMS error of interpolated position and height as a function of traverse length are proposed. The Litton Auto-Surveyor System II is an upgraded version of the Position and Azimuth Determining System intended for applications in surveying and geodesy. The hardware features which set a LASS-II apart from a PADS are (1) gyros screened to tighter performance specifications, (2) modifications to the control/display unit (CDU), (3) addition of a digital tapedeck and associated interface electronics, and (4) a coat of paint change from olive drab to off-white which, aside from giving the LASS-II a distinctive look, has the functional purpose of aiding with the management of heat dissipation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA159367

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  • L. Pfeifer
  • R. Tyszka

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