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UDC 621.396

MULTI-CRITERIA SYNTHESIS OF SIGNAL-CODE SEQUENCE BASED ON DEPENDENT SIGNALS TO ADAPT DATA COMMUNICATION RADIO SYSTEM TO NARROW-BAND INTERFERENCE

S. N. Kirillov, PhD (technical sciences), full professor, Head of the Department, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
A. A. Lisnichuk, PhD (technical sciences), RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.

The use of the known signal-code sequences (SCS) in data communication radio system under the action of narrow-band interference leads to significant losses in radio noise immunity. The aim is to develop the procedure for multi-criteria synthesis of signal-code sequence based on dependent signals to adapt data communication radio system to narrow-band interference. The proposed procedure of SCS synthesis based on dependent signals makes use of combined quality criterion. This fact allows us to consider the following particular criteria responsible for throughput and attenuation of action from narrow-band interference, out-of-band radiation, noise immunity to "white" Gaussian noise as well as SCS power efficiency. It is shown that the synthesized signal-code sequences received with the help of multi-criteria synthesis procedure offered increase radio narrow-band interference immunity by more than 23 dB and 20 dB compared to FQPSK signal-code sequence and QPSK signal respectively.

Key words: synthesis of signal-code sequences, synthesis of radio signals, adaptive data communication systems, multi-criteria optimization, increase immunity to radio narrow-band interference.

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