Accession Number : AD0287107

Title :   STUDY OF THE PHASE-LOCKED LOOP FOR DOPPLER TRACKING

Corporate Author : PHILCO CORP PALO ALTO CALIF

Personal Author(s) : HECKERT,J.P.

Report Date : 15 MAY 1962

Pagination or Media Count : 1

Abstract : The basic design and use of the phase-locked receiver as a doppler tracking device are discussed. Conclusions, graphs, and tables are presented for determining such parameters as required transm ter power, minimum loop bandwidths required for tracking and for initial acquisition, memory times for automatic reacquisition of a lost signal, optimum sampling-time for doppler measurement, and errors in doppler frequency measurement. (Author)

Descriptors :   *DOPPLER SYSTEMS, *SATELLITES (ARTIFICIAL), *TRACKING, ERRORS, GEOMETRY, ORBITS, SIGNAL-TO-NOISE RATIC

Distribution Statement : APPROVED FOR PUBLIC RELEASE