Сибирский федеральный университет

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Год издания: 2020

Идентификатор DOI: 10.1109/MWENT47943.2020.9067372

Ключевые слова: broadband signal, intermodulation, modeling, multi-frequency mode, multiplexer, non-linear amplifier, Satellite communication systems

Аннотация: The growing number of subscribers and the volume of transmitted information requires an increase in the capacity of satellite communication systems. This is possible through the use of high orders of signal constellations, spatial separation of channels, effective noise-resistant codes. In addition, the new standards require the effective use of nonlinear power amplifiers that must operate close to saturation. Of interest is the increase in the capacity of satellite communication systems due to the multi-frequency mode in the transponder channel. The article reveals the channel structure, gives a detailed description of the input and output multiplexers, a nonlinear amplifier, a mixer, and a local oscillator. The structure of the computer model of the transponder channel and the multi-frequency signal of the ground station is shown. The simulation results show that the multi-frequency mode introduces additional intermodulation distortion of the carriers of one channel. This requires the development of nonlinear predistortion systems at transmitting ground stations, as well as equalizers at receiving stations. © 2020 IEEE.

Журнал: Moscow Workshop on Electronic and Networking Technologies, MWENT 2020 - Proceedings

Номера страниц: 9067372

Издатель: Institute of Electrical and Electronics Engineers Inc.

• Mishurov A.V. (Siberian Federal University, Institute of Engineerimg Phisics and Radio Electronics, Krasnoyarsk, Russian Federation)
• Panko S.P. (Siberian Federal University, Military Engineering Institute, Krasnoyarsk, Russian Federation)
• Gorchakovskiy A.A. (Siberian Federal University, Institute of Engineerimg Phisics and Radio Electronics, Krasnoyarsk, Russian Federation)
• Zubov T.A. (Siberian Federal University, Military Engineering Institute, Krasnoyarsk, Russian Federation)
• Dmitriev D.D. (Siberian Federal University, Scientific and Educational Laboratory systems of Navigation, Control and Communication, Krasnoyarsk, Russian Federation)
• Tyapkin V.N. (Siberian Federal University, Institute of Engineerimg Phisics and Radio Electronics, Krasnoyarsk, Russian Federation)

• Ядро РИНЦ (eLIBRARY.RU)