Accession Number : AD0286648

Title :   THE DOPLOC DARK SATELLITE TRACKING SYSTEM

Corporate Author : ARMY RESEARCH OFFICE WASHINGTON D C

Personal Author(s) : DEBEY,A.L. ; RICHARD,V.W.

Report Date : DEC 1962

Pagination or Media Count : 1

Abstract : The DOPLOC dark satellite tracking system is described and tracking res lts are presented. DOPLOC is a radio reflection Doppler tracking system deriving its ame from the Doppler frequency phase-locked tracking filter technique used. Dark, i.e. nonradiating, satellites are illuminated by a ground-based transmitter and signals reflected from illuminated satellites are received at one or more ground-ba ed receiving sites. A unique method has been developed for the determination of a compleecorded in the course of a single pass of a satellite. Numerous orbital solutions have been obtained with Doppler data from a single receiver recorded during a single pass of a satellite. Computing times of 2 to 4 minutes are required with the RLESC computer. The DOPLOC racking method has general application to the tracking of projectiles, rockets, guided missiles and space vehicles. (Author)

Descriptors :   *DOPPLER SYSTEMS, *ORBITS, *RADAR SIGNALS, *SATELLITES (ARTIFICIAL), *TRACKING, GUIDED MISSILE TRACKING SYSTEMS, GUIDED MISSILES, PROJECTILE TRAJECTORIES, PROJECTILES, ROCKET TRAJECTORIES, ROCKETS

Distribution Statement : APPROVED FOR PUBLIC RELEASE