Accession Number : AD0509148

Title :   Study of the Long Range Position Determination System.

Descriptive Note : Final technical rept. 29 Apr-29 Dec 69,

Corporate Author : COMMUNICATIONS AND SYSTEMS INC FALLS CHURCH VA

Personal Author(s) : Lefkowitz,Howard ; Jones,M. E. ; Kullstam,P. ; McGregor,Dennis N. ; Rhodes,S. A.

Report Date : JAN 1970

Pagination or Media Count : 282

Abstract : The study involves the investigation of trilateration-ranging and range differencing tracking concepts of determining the precise position of a large number of stationary ground targets. The objective is to provide a detailed tradeoff and performance analysis of the best candidate systems in order to select the most promising approach(es) for Long Range Position Determining System (LRPDS). A number of detailed technical analyses are involved. These include: position estimation, error analysis and system performance accuracy, synchronization-acquisition, implementation, system timing considerations, time division multiple access design, system description, data transmission, carrier and code tracking, RF link performance, and jamming performance.

Descriptors :   (*POSITION FINDING, SURFACE TARGETS), TRACKING, RANGE FINDING, RANGE(DISTANCE), COMBAT SURVEILLANCE, DATA TRANSMISSION SYSTEMS, SYNCHRONIZATION(ELECTRONICS), RADIO ANTIJAMMING, TARGET ACQUISITION, SEARCH THEORY, RADIO JAMMING, DIRECTION FINDING (U) RADIO BEACONS, AIRBORNE, RADIO RELAY SYSTEMS, PHASE LOCKED COMMUNICATIONS, PSEUDO-RANDOM SYSTEMS, TRIANGULATION, ARTILLERY, TIME SHARING

Subject Categories : Direction Finding
      Fire Control and Bombing Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE