Title :
A new technique for decoding Loran-C radionavigation signals
Author_Institution :
Dept. of Comput. Sci., York Univ., UK
fDate :
10/1/1996 12:00:00 AM
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;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
