Accession Number : AD0609208

Title :   EVERYMAN'S DOPPLER SATELLITE NAVIGATION SYSTEM,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : NEWTON,Robert R.

Report Date : JUL 1964

Pagination or Media Count : 116

Abstract : This paper describes a system of navigation by measuring the Doppler shift in the radio transmissions from a near-Earth satellite. The paper describes simple equipment for making the measurements. It also shows that the need for current information which must be supplied to the navigator can be reduced to the reception of a number containing six decimal digits. Finally, it shows that the computations needed for the navigator to obtain a fix can be performed with the aid of tables that can be prepared at least 18 months into the future. Using these tables and a simple slide rule, but no other computational aids, a fix accurate to about 500 meters can be obtained in about ten minutes. More accuracy can be obtained at the expense of time, or time can be saved at the expense of accuracy. (Author)

Descriptors :   (*NAVIGATION SATELLITES, DOPPLER EFFECT), (*DOPPLER SYSTEMS, POSITION FINDING), (*DOPPLER NAVIGATION, DOPPLER SYSTEMS), RADIO TRANSMISSION, RADIO SIGNALS, INERTIAL NAVIGATION, TRACKING, TABLES(DATA)

Distribution Statement : APPROVED FOR PUBLIC RELEASE