Superbroadband channel of communication systems

Abstract

At present, in the digital radio communication field with traditional methods of channel division ( time and frequency), there are code methods of channel division based on spread spectrum signals. The spread spectrum signals, or noise-like signals (NLS), potentially provide more effective utilization of the frequency band in multichannel communication systems. That is the determining factor for the development prospects of digital communication. The development of NLS formation and optimum reception devices for digital communication networks requires the solution of complex theoretical, technological and technical problems. We offer for consideration ways of formation and quasi optimum receiving of spread spectrum signals based on a combination of functional acousto-electronics methods and specialized signal processors. Our experimental researches of superbroadband communication links have confirmed the serviceability of equipment for NLS formation and reception with spectrum width up to 100 MHz and base /spl sim/3000. The offered method of superbroadband NLS formation and reception with large bases can be now used for developing communication systems with channel code division.