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title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: The development of iterative demodulation algorithm for cancelling inter-channel interference of multi-frequency non-orthogonal signals
Creators: name: Ð¡ÑÑÐ¾ÑÐºÐ¸Ð¹, Ð¡Ð²ÑÑÐ¾ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¼Ð½Ð¾Ð³Ð¾ÑÐ°ÑÑÐ¾ÑÐ½ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
Ð½ÐµÐ¾ÑÑÐ¾Ð³Ð¾Ð½Ð°Ð»ÑÐ½ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½Ð¾-ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
Ð¸ÑÐµÑÐ°ÑÐ¸Ð²Ð½ÑÐ¹ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼
Ð¼ÐµÐ¶ÐºÐ°Ð½Ð°Ð»ÑÐ½Ð°Ñ Ð¸Ð½ÑÐµÑÑÐµÑÐµÐ½ÑÐ¸Ñ
Ð¿Ð¾Ð¼ÐµÑ Ð¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ
Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾-Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÐ¼Ð¾Ðµ ÑÐ°Ð´Ð¸Ð¾
multi-frequency signals
SEFDM
OFDM
interference
ICI
iterative algorithm
BER performance
SDR

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description: The subject of the graduate qualification work is âThe development of iterative demodulation algorithm for cancelling inter-channel interference of multi-frequency non-orthogonal signalsâ. The given work is devoted to development of an algorithm for cancelling inter-channel interference of multi-frequency non-orthogonal signals. As a result of the study, an iterative algorithm for cancelling inter-channel interference was developed. Computational complexity of developed algorithm was analyzed. Optimal parameters of algorithm were calculated for various values of factor of compressed bandwidth. Crossing points of different algorithms were researched. SEFDM signals were transmitted and received with SDR. Received signals were demodulated with symmetrical iterative algorithm. Energy gain of developed algorithm in comparison with asymmetrical on 1 subcarrier is 1.1 dB while BER is 10-2 and factor of compressed bandwidth is 0.9. For factor equal to 0.8 BER value is 1 order less than asymmetrical algorithm on 1 subcarrier. For case factor is 0.7 value of developed algorithm is 1.1 times less than asymmetrical on 1 subcarrier and 1.5 times less than element-by-element reception.