A new technique for decoding Loran-C radionavigation signals

Author

Fisher, A.J.

Author_Institution

Dept. of Comput. Sci., York Univ., UK

Volume

32

Issue

4

fYear

1996

fDate

10/1/1996 12:00:00 AM

Firstpage

1457

Lastpage

1467

Abstract

A new approach to the extraction of navigation information from Loran-C radionavigation signals is described. A reduced-rate time-reversed sequence is derived from the RF signal and processed by a finite-impulse response (FIR) filter. It is shown that proper design of the FIR filter and proper control of the sampling point guarantee the rejection of skywave contamination, and achieve excellent rejection of continuous-wave interference (CWI). The process is computationally efficient

Keywords

FIR filters; radio receivers; radionavigation; sequential decoding; Loran-C radionavigation signals; RF signal; computationally efficient process; continuous-wave interference rejection; finite-impulse response filter; navigation information extraction; reduced-rate time-reversed sequence; sampling point; skywave contamination rejection; Coordinate measuring machines; Decoding; Finite impulse response filter; Frequency measurement; Phase measurement; Pollution measurement; Position measurement; Radio navigation; Radio transmitters; Receivers; Tellurium; Velocity measurement;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.543867

Filename

543867