Accession Number : ADP009125

Title :   Precision Frequency Synthesizing Sources with Excellent Time/Frequency Performances,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION GREENBELT MD GODDARD SPACE FLIG HT CENTER

Personal Author(s) : Zhou, Liren ; Lin, Hai

Report Date : 02 DEC 1993

Pagination or Media Count : 8

Abstract : Precision frequency synthesizing sources are needed in the time/ frequency measuring system, atomic frequency standards, telemetry, communication and radar systems. This kind of frequency synthesizing sources possesses high frequency accuracy and excellent long term and short term frequency stability. Several precision frequency synthesizing sources developed by Beijing Institute of Radio Metrology and Measurement (BIRMM) are described in this paper, which have been successfully applied to the time / frequency measuring system, atomic frequency standards system and radar system. In addition, the working principle, implementation approach and the main technical specifications obtained of the frequency synthesizing sources are also given in this paper.

Descriptors :   *FREQUENCY STANDARDS, *METROLOGY, *PRECISION, *SYNTHESIS, ACCURACY, APPROACH, MEASUREMENT, PAPER, RADIO EQUIPMENT, SPECIFICATIONS, STABILITY, STANDARDS, TIME, CHINA, TELEMETER SYSTEMS, RADAR EQUIPMENT.

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE