Accession Number : ADD011697

Title :   Balanced System for Ranging and Synchronization between Satellite Pairs.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Schwartz,J W

Report Date : 15 Jan 1985

Pagination or Media Count : 13

Abstract : A balanced ranging and synchronization (R&S) system is described for a master(M)-slave(S) satellite pair including a clock, a transmitter, a receiver, a time difference measuring device and a calculating device on both M and S. Each satellite transmits timing signals synchronized to its clock, receives the timing signals from the other satellite and measures the time difference between the transmission and the reception of the timing signals. The time difference measured on each satellite is then transmitted to the other satellite. The calculating device on each satellite utilizes these time difference measurements to calculate the asynchronism between the clocks and the range between the satellites. Finally the S clock is adjusted so that the asynchronism is reduced to within predetermined limits.

Descriptors :   *PATENTS, *CLOCKS, *SIGNALS, ARTIFICIAL SATELLITES, TIME, MEASUREMENT, SYNCHRONISM

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE