Accession Number : AD0771868

Title :   River and Harbor Aid to Navigation System (RIHANS) Phase 1-T: System Definition.

Descriptive Note : Final rept. Jun 72-May 73 on Phase 1,

Corporate Author : TRACOR INC AUSTIN TX

Personal Author(s) : Baltzer, O. J. ; Fraser, E. C. ; Harris, D. P. ; Shinn, L. W.

Report Date : AUG 1973

Pagination or Media Count : 413

Abstract : A low frequency radio navigation system was designed for use within ports, rivers and harbors. The system, operating on the principle of phase comparison much like OMEGA, sequentially radiates four frequencies in the 300 kHz region to provide service to a 50-mile square area. Theoretical analyses indicate that the low frequency RIHANS system is capable of providing position fixed accurate to 50-250 feet, the error dependent on the user's position relative to the transmitters. Limited experiments conducted on a single 12-mile baseline array yielded single LOP absolute accuracies of 30 feet with repeatability of 10-20 feet. (Author)

Descriptors :   *RADIO NAVIGATION, LOW FREQUENCY, RIVERS, HARBORS, NAVIGATIONAL AIDS, ACCURACY, PERFORMANCE(ENGINEERING).

Subject Categories : Land and Riverine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE