Abstract
Modern communication systems provide for the introduction of methods for protecting information, for example, a multifunction automated digital data-sharing and synchronization based on packet radio with frequency-hopping spread spectrum (FHSS). The paper presents the results of the authors' investigation of the modeling and its validation by practical realization the secure wireless radio signal transmission with frequency hopping spread spectrum (FHSS) in the 30.. 110 MHz band. The results of synthesis and work modeling of digital receiver based on the digital down converter (DDe)., and a digital signal processor (DSP) used to process received signals are presented. The method of constructing narrowband receiver with a digital filtering, demodulation and signal processing, the results of use them in digital radio with frequency-hopping spread spectrum (FHSS mode) is discussed.
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