On features of implementation of SEFDM-transmitter with optimal shape of envelope

EN Smirnova, AS Ovsyannikova… - Journal of Physics …, 2019 - iopscience.iop.org
This article describes joint use of two improving spectral efficiency algorithms for multi-
frequency signals: SEFDM (Spectrally Efficient Frequency Division Multiplexing) technology …

Criteria for selection envelope tracking power supply parameters for high peak-to-average power ratio applications

A Pergushev, V Sorotsky… - 2019 IEEE International …, 2019 - ieeexplore.ieee.org
The signals used in telecommunication systems have a high peak-to-average power ratio.
To increase the efficiency of power amplifiers of such signals, an envelope tracking method …

Output voltage PWM conversion inaccuracies in envelope tracking power supply for high peak-to-average power ratio applications

A Pergushev, V Sorotsky… - 2019 IEEE International …, 2019 - ieeexplore.ieee.org
When amplifying signals with a high peak-to-average power ratio, the envelope tracking
method is widely used to increase the efficiency of power amplifiers. When designing a …

FPGA design and implementation of DVB-S2/S2X LDPC encoder

AV Lazarenko - 2019 IEEE International Conference on …, 2019 - ieeexplore.ieee.org
A new FPGA architecture of the DVB-S2/S2X LDPC FEC encoder with low number of
resources consumption is proposed. The encoder is full rate compatible and supports all …

The analytical model for calculating distortions in the envelope tracking power supply

A Pergushev - 2019 IEEE International Conference on …, 2019 - ieeexplore.ieee.org
Amplification of signals with a high peak-to-average power ratio is accompanied by
decreasing of the radio transmitter's efficiency, which can be increased with the help of the …

Application of neural networks to reduce distortion of RF signals in switch mode power amplifiers

V Sorotsky, R Zudov - 2020 IEEE International Conference on …, 2020 - ieeexplore.ieee.org
The paper covers the problem of reducing distortion of switch mode power amplifier (SMPA)
output voltage using a neural network. Signal distortion in SMPA is mainly caused by …

Comparative study of analytic solution and numerical solution of baseband symbol signal based on optimal generic function

M Liu, W Xue, SB Makarov, J Qi… - Mathematical Problems in …, 2019 - Wiley Online Library
In this paper, the optimal mathematical generic function model is established using the
minimum out‐of‐band energy radiation criterion. Firstly, the energy limit conditions …

Experimental research of receiver based on SEFDM-signals with optimal envelopes

EN Smirnova - Journal of Physics: Conference Series, 2019 - iopscience.iop.org
This article describes a research of receiver which is part of SDR-modem based on SEFDM-
signals (Spectrally Efficient Frequency Division Multiplexing) with optimal envelopes. Three …

Analysis on Attributes of Software Defined Radio for Space Communication

A Kumar, M Devanthan, ML Divya… - 2022 Third International …, 2022 - ieeexplore.ieee.org
Software Defined Radio is the device used for radio communication in which software is
used to alter its various parameters like frequency selection, Modulation and demodulation …

Means to enhance the bandwidth gain from applying multicomponent signals in DVB-S2

PN TH, A Gelgor - 2019 IEEE International Conference on …, 2019 - ieeexplore.ieee.org
This paper considers the improvement of DVB-S2 system by using bandwidth-efficient
multicomponent signals (MCS) with optimal shaping pulses. Finite optimal pulses are …