Title :
A Repeater Fault Locator Using a Correlation Technique for a Submarine Coaxial Cable System
Author :
Kobayashi, Yukio
Author_Institution :
NTT Public Corp., Japan
fDate :
5/1/1982 12:00:00 AM
Abstract :
This paper introduces a correlation technique in order to accurately measure intermodulation products from repeaters within a short period of time. A pair of PN sequences, whose cross-correlation function has a zero sidelobe has been designed to reduce interference by other products, and to obtain the necessary signal-to-noise ratio (more than 50 dB). As an example, design objectives and results for a repeater fault locator in a 140 MHz submarine coaxial cable system are described.
Keywords :
correlation methods; fault location; submarine cables; 140 MHz; PN sequences; correlation technique; cross-correlation function; intermodulation products; repeater fault locator; repeaters; signal-to-noise ratio; submarine coaxial cable system; zero sidelobe; Circuit faults; Coaxial cables; Filters; Frequency; Pulse amplifiers; Pulse modulation; Repeaters; Signal to noise ratio; Time measurement; Underwater vehicles;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1982.1095559
