Accession Number:

ADA242440

Title:

Determining Atmospheric Conditions from Trajectory Data

Descriptive Note:

Final rept. Jun 90-Jun 91,

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1991-10-01

Pagination or Media Count:

35.0

Abstract:

This report investigates the feasibility of determining atmospheric conditions from a projectiles observed flight. Test trajectories were generated as solutions of the modified point-mass MPM equations of motion, using standard atmospheric conditions and specified winds. In a revised version of the MPM equations, the air density, sound speed and wind were re-defined in terms of a small number of parameters. A curve-fitting program then fit the revised equations to the trajectory data by adjusting the parameter values. Density, sound speed and wind profiles obtained from theses fits were in excellent agreement with the original atmospheric data. Thus, the program--although it should be further tested under less idyllic conditions--is entirely feasible.

Subject Categories:

  • Meteorology
  • Computer Programming and Software
  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE