Amplification of chaotic pulses in a multipath environment

The characteristics of ultrawideband communications systems using chaotic RF pulses and operating in a multipath environment are considered. It is shown that, under certain conditions imposed on the pulse duration and on the guard time intervals between the pulses, the signal propagating in this environment is amplified with respect to the signal propagating in free space. It is found that this multipath-amplification effect may result in a considerable increase in the communication range. The characteristics of an ultrawideband communications system using chaotic radio pulses are compared to the characteristics of a communications system using ultrashort pulses under the conditions of a multipath environment.[PUBLICATION ABSTRACT]