Coherent transmission of digital information with M-ary modulation of chaotic signal

 

T. I. Mokhseni, A. M. Kikot

 ¹ Kotel’nikov Institute of Radio engineering and Electronics of RAS, Mokhovaya 11-7, Moscow 125009, Russia

² Moscow Institute of Physics and Technology, Institutskiy lane 9, Dolgoprudnyi Moscoe region, 141700, Russia

 

The paper is received on June 20, 2017

 

Abstract. A method for coherent reception and transmission of an information sequence based on chaotic signals is proposed. Information sequence consists of elements of the M-ary alphabet. The main feature of the proposed method is the use of pre-recorded in memory in digital form chaotic signal fragments as carriers. Digital implementation of transmitter and receiver allows the use of the same copies of carrier chaotic signal and synchronization of these copies in time for establishing a correlation reception. The implementation of this approach corresponds to the concept of Software Defined Radio (SDR). According to SDR concept basic parameters of transceiver components are determined by software rather than hardware configuration as it arranged in analog systems.

The scheme of reception and transmission which allows the implementation of the proposed method is presented. In the scheme two orthogonal fragments of chaotic signal were used as basic functions. In accordance with the presented scheme modeling and experimental approbation were carried out.

Key words: chaotic signal, communication system, software defined radio, coherent detection.

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For citation:

 T. I. Mokhhseni, A. M. Kikot. Coherent transmission of digital information with M-ary modulation of chaotic signal. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017, No. 7. Available at http://jre.cplire.ru/jre/jul17/8/text.pdf. (In Russian)