Novel circuits for generation, encryption and multiplexing of time-hopping spread-spectrum signals

Abstract

<span style="font-size:14.0pt;line-height: 115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">A simple and novel circuit for the generation of a THSS signal corresponding to an input message bit sequence is presented. The circuit has been modified to generate an encrypted THSS signal with increased message-hiding capacity. The novel circuits for multiplexing various THSS signals are also worked out. The experimental investigation of the circuits has yielded satisfactory results. The receiver circuits to recover the message signals from various THSS signals have also been proposed.</span>