Accession Number : AD0745887

Title :   Artillery Sound Ranging Computer Simulations.

Descriptive Note : Research and development technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND WHITE SANDS MISSILE RANGE N MEX ATMOSPHERIC SCIENCES LAB

Personal Author(s) : Lee,Robert P.

Report Date : MAY 1972

Pagination or Media Count : 63

Abstract : The report demonstrates that aliasing can occur between microphone placement errors and wind and temperature estimation errors. A new type of field test is described to measure statistically the effect of wind and temperature fields on atmospheric sound ranging. From the contour error curves presented it can be seen that when a geometric solution is employed there can be an increase as great as 25% in the area enclosed by a given error contour if three microphones are used instead of six. With the development of a practical least-squares computer for field use, six microphones would result in an even greater increase in useable coverage. (Author)

Descriptors :   (*ARTILLERY FIRE, *SOUND RANGING), MICROPHONES, INSTALLATION, ACOUSTIC SIGNALS, IMAGES, PROPAGATION, METEOROLOGICAL PHENOMENA, LEAST SQUARES METHOD

Subject Categories : Acoustic Detection and Detectors
      Fire Control and Bombing Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE