Accession Number:

AD0255820

Title:

PRECISE LONG RANGE RADAR DISTANCE MEASURING TECHNIQUES

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGOCA

Personal Author(s):

Report Date:

1961-02-13

Pagination or Media Count:

247.0

Abstract:

An analytical investigation of 200- to 3,000-nautmil baseline radio tracking systems was conducted. The evaluation considered the use of the systems in tracking and guiding earth satellites and lunar spacecraft. Representative error models for several tracking systems were formulated and compared. The comparison showed that systems which measure slant range only, contain fewer sources of error. A tracking system simulation employing computer programs and a high-speed digital computer is described. Use of the tracker simulation to depict the error model of a range-only tracking system, together with representative spacecraft trajectories is discussed. The results of the tracker simulation are presented for a system including survey tracker location errors and a system without survey errors. An analysis of a geodetic satellite method of survey in the tracking system is presented. An evaluation of tropospheric propagation effects on the radio measurement of slant range is presented. Author

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE