Research on Properties of Devices for Shaping and Processing of Signals Based on Amplitude Modulation of Many Components

Horbatyi, Ivan

doi:10.3103/s0735272718100047

Cited by 11 publications

(5 citation statements)

References 6 publications

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“…Вибраний вид модуляції -амплітудна модуляція багатьох складових із трьома компонентами (АМБС) -це такий вид амплітудно-фазової маніпуляції, який характеризується більшою стійкістю до шуму, ніж у КАМ-сигналів схожих порядків за таких самих прикладених потужностей [8].…”

Section: особливості амбс сигналівunclassified

Solution of the Regression Problem of Demodulation of Signals With Amplitude Modulation of Many Components

Tsymbaliuk¹

2023

ICTEE

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The article is devoted to the consideration of AMBS features, highlighting the methodology of AMBS signal calculation for presentation in the form of a signal constellation and time graphs, and the use of calculated signals as input data for training a neural network that performs the task of signal demodulation. To represent sets of random values of different symbols of AMBS signals, a method was proposed, the essence of which is the use of Voronoi cells as a way of dividing the space between the points of the signal constellation, which is more efficient from a geometric point of view, compared to how signals are represented in trivial information transmission systems. The theoretical increase in the efficiency of the proposed method was calculated in comparison with the trivial approach assuming a higher efficiency of Voronoi cells as a way to divide the space between points. The described methods and techniques were embodied in the algorithm of the software product, which performs the task of forming the AMBS constellation, creating noisy variations of the signal around the points, recording these variations in a file, which is later used in the training of the neural network. The principle of operation of the software product based on previously formed algorithms is described, the algorithms themselves are described, their effectiveness is evaluated, the design decisions of the software product structure are explained, in particular, attention is paid to flexibility and the possibility of adjustment for specific cases. It is described with what data and in what form the created system operates. The efficiency of the created system was evaluated using relatively high values of added noise in the analyzed signal. Conclusions are drawn regarding ways to maximize system efficiency, and the dependence of accuracy on various model parameters is depicted. The algorithm for assessing the accuracy of the prediction of the neural network was formed, implemented in the form of a subroutine of the software product, the accuracy of the proposed system was evaluated, and conclusions were drawn about the work done.

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Section: особливості амбс сигналівunclassified

Solution of the Regression Problem of Demodulation of Signals With Amplitude Modulation of Many Components

Tsymbaliuk¹

2023

ICTEE

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“…Complicated Demodulators: Designing the demodulator units at the receiver end is a bit complex job but now the recent smart reverse convolution techniques make this job easier to implement [15]. Though, the techniques make the demodulation costly as well compare to AM (Amplitude Modulation) demodulation technique where simple diode detectors are used [16].…”

Section: Disadvantagesmentioning

confidence: 99%

Design and Implementation of a Smart & Portable Wireless FM Transmitter for Wide Range Communication

Wang¹,

Bhowmik²

2020

JERR

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The evolution of smart technologies makes end users to choose portable, cost-effective and reliable devices for their daily life usage. The optimum service and superior quality of any such devices are always remain the centers of attraction for any customer. The advent of new technologies gives the smart FM transmitters also a unique shape. Depending on the dynamic requirements, the customer needs always changes with time. Keeping this fundamental issue in mind, in this work, we have designed and implemented a smart FM transmitter model keeping the key features in mind. Its small size, long battery life, and easy portability make it very useful to be used in day to day life. It has the potential of real-time noise cancellation features to get the optimum sound quality at the receiver end. The Digital Frequency Modulation Scheme has been used here to boost the signal strength for long-range communication. The used components are very cost-effective and reliable for prolonged use. The test case has given high-quality sound reception at the receiving end from the source end using our model. This smart transmitter section model has been found to be very effective for the future digital communication system. The specific station catching ability and low tone scanning capability make it superior to other existing similar kinds of devices. It can be used at home, or institutional premises, or any other distant trials for effective information exchange.

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“…To implement M-AMMC signals, it proposed to use the AMMC modulator and AMMC demodulator [11], the block diagrams for are shown in Fig. 3 and Fig.…”

Section: Varieties Of Modulationmentioning

confidence: 99%

“…According to studies [11], the use of other known modulators and demodulators, such as a quadrature modulator and a quadrature demodulator, is not feasible for the shaping and processing of AMMC signals, as it does not achieve the potential noise immunity of AMMC signals. A significant advantage of the AMMC demodulator is the ability to provide higher resistance to zero drift in the sub-channels of the AMMC demodulator when processing AMMC signals with a non-rectangular signal constellations compared to a quadrature demodulator.…”

Section: Varieties Of Modulationmentioning

confidence: 99%

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International Journal of Electronics and Telecommunications

Horbatyi

Yashchyshyn

2020

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It is proposed to modernize the DVB-S2 standard by using AMMC (amplitude modulation of many components) signals instead of 8PSK (8-phase shift keying) and APSK (amplitude-phase shift keying) signals, and to modernize the DVB-S2 standard equipment by using the AMMC modulator and AMMC demodulator. Usage of AMMC makes it possible to reduce the symbol error rate in communication channel up to 52 times. The satellite digital video broadcast systems that apply signal-code constructions based on AMMC are characterized by a higher energy efficiency from 1 to 2.6 dB compared with signalcode constructions based on 8PSK and APSK.

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Research on Properties of Devices for Shaping and Processing of Signals Based on Amplitude Modulation of Many Components

Cited by 11 publications

References 6 publications

Solution of the Regression Problem of Demodulation of Signals With Amplitude Modulation of Many Components

Solution of the Regression Problem of Demodulation of Signals With Amplitude Modulation of Many Components

Design and Implementation of a Smart & Portable Wireless FM Transmitter for Wide Range Communication

International Journal of Electronics and Telecommunications

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