Method of Coding Information Distributed by Wireless Communication Lines Under Conditions of Interference

Serkov, Aleksandr; Breslavets, Vitaliy; Tolkachov, Maksym; Kravets, Valeri

doi:10.20998/2522-9052.2018.2.25

Cited by 10 publications

(9 citation statements)

References 3 publications

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“…The complex autocorrelation function calculated by formula (7) using relation (6) for the power spectrum of the received signal (5) has the following form:…”

Section: Methods For Extracting Information Uwb Signals In a Communicamentioning

confidence: 99%

“…At the output of the digital spectrum analyzer, during T B of each transmitted bit, the power spectrum of the received UWB signal is determined in the form (6). The digital Fourier processor performs fast inverse Fourier transform for an array of digital reviews, which are formed at the output of the AS spectrum analyzer.…”

Section: Methods For Extracting Information Uwb Signals In a Communicamentioning

confidence: 99%

“…The solution to this problem is the transition from the transmission of one bit by one pulse to the transmission of one bit of information by a series of pulses [6]. In this case, while maintaining the radiation energy by one bit, it is possible to reduce the energy that falls on one pulse proportional to the number of pulses in a series.…”

Section: Analysis Of Technical Solutionsmentioning

confidence: 99%

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Method of Wireless Transmission of Digital Information on the Basis of Ultra-Wide Signals

Serkov¹,

Trubchaninova²,

Mezitis³

2019

A.I.S.

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Ab s t r a c t. The subject of the study are the organization of wireless transmission of digital information based on ultrawideband signals. The goal is the development of models and methods for organizing broadband wireless communications operating in difficult interference environments. The task is to ensure the stable and safe operation of communication systems. The methodology is based on the method of generating ultra-wideband digital signals and the method of extracting ultra-wideband information signals in the communication channel with interference. The methods used: methods of analytical, simulation and inverse Fourier transform. The following results are obtained. A technique has been developed for wireless transmission of digital information based on ultra-wideband signals, which includes a method for generating ultra-wideband information signals with code spectral modulation and a method for extracting information signals in a communication channel with interference. An assessment of the effect of interference on the quality of the information being restored is performed. A special class of intra-system interference has been identified, which appears due to the multiplicity of delays in the information bit stream T 0 or T 1 . It is shown that their appearance leads to an increase in the bit error when extracting information signals in the communication channel. A mechanism is proposed for eliminating these errors by setting the multiple delays T 0 and T 1 when generating ultra-wideband information signals. Conclusions. The use of communication channels with an ultra-wide frequency band makes it possible to simultaneously implement a set of requirements for the electromagnetic compatibility of telecommunication systems, high-speed transmission of information with high noise immunity with respect to external interference. K e ywor d s : ultra-wideband signal; wireless transmission; correlation technique; coherence.

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“…The complex autocorrelation function calculated by formula (7) using relation (6) for the power spectrum of the received signal (5) has the following form:…”

Section: Methods For Extracting Information Uwb Signals In a Communicamentioning

confidence: 99%

Section: Methods For Extracting Information Uwb Signals In a Communicamentioning

confidence: 99%

Section: Analysis Of Technical Solutionsmentioning

confidence: 99%

See 1 more Smart Citation

Method of Wireless Transmission of Digital Information on the Basis of Ultra-Wide Signals

Serkov¹,

Trubchaninova²,

Mezitis³

2019

A.I.S.

Self Cite

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“…This way, the transmission duration of one bit coded information is 1 µs. [6,7]. It should be noted that a high level of protocol noise immunity is provided by availability of additional communication channels.…”

Section: The Analysis Of Problem and Formulation Of The Taskmentioning

confidence: 99%

“…The family of electric impulse generators created on this basis makes it possible to practically implement UWBS technology. In the UAV control channel, information is encoded by means of temporal positionpulse modulation [6]. So the pulse offset relative to the reference position in the sequence forwards sets the zero bit, and backward -sets one.…”

Section: Task Solutionmentioning

confidence: 99%

Ultra Wideband Technologies in Mobile Object Management Systems

Serkov

Pustovoitov

Yakovenko

et al. 2019

A.I.S.

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Ab s t r a c t. The subject of study is the processes of noise immunity ensuring of wireless control channels and mobile objects communication. The aim of article is to increase the capacity and noise immunity of control and communication systems under the natural and intentional interference influence. The concept is based on the technology of ultra-wideband communication that consists in the transmission of low-power coded pulses in a very wide bandwidth without a carrier wave. The task is to ensure stable and safe operation of mobile objects. Methods used: methods of analytical, simulation, and temporal position-pulse coding. The following results were obtained. A security concept has been developed for wireless control channels and mobile objects communication. It is shown that in order to obtain high noise immunity of control and communication channels and to protect information from interception, it is necessary to apply wireless ultrawideband communication technology, which allows providing of large capacity and transmission rate. The possibility of joint interference-free operation in the same frequency range of both traditional narrow-band communication systems and systems using ultra-wideband signals is grounded. A technical solution for the design of an ultra-wideband receivingtransmitting antenna system is proposed. Conclusion. The usage of channels with an ultra-wide bandwidth allows an almost unlimited increase in the number of control and communication channels of mobile objects. Pre-distribution between the channels of orthogonal codes implements the process of control and communication without interception of information and mutual interference. Moreover, the usage of the temporal position-pulse coding method prevents intersymbol distortions of coding ultrashort pulses. It also reduces the rate of information signals distortion caused by its multipath propagation that guarantees the safety of managing mobile objects.

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