Suppression method of inter-symbol interference in communication system based on mathematical chaos theory

Liang, Ye; Gao, Nan; Liu, Tao

doi:10.1016/j.jksus.2020.01.012

Cited by 7 publications

(6 citation statements)

References 20 publications

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“…Therefore, in order to optimize the quality of communication transmission, the method of ISI suppression in the communication system is being studied. Based on the analysis of the ISI principle in the communication system, it is known that a delay in several channels can lead to ISI [3]. Guo et al [4], the mechanism of channel wave multipath propagation to determine features of a channel wave in a coal seam.…”

Section: Introductionmentioning

confidence: 99%

Interference immunity and energy efficiency of digital communications systems in multipath channel with fading

Tashatov

Seksembayeva

Ovechkin

et al. 2022

IJEECS

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In the study of measures to improve channel efficiency, we developed and presented a performance analysis of a digital communication system for image transmission in a multipath channel with fading, in the MATLAB/Simulink environment, one of the main advan tages being that it provides high interference immunity in the presence of noise and interference and signal delays. The scheme has been investigated for bit error rate (BER) on additive white Gaussian noise (AWGN) channel and multipath Rice and Rayleigh fading channel operating under the influence of inter-symbol interference (hereinafter ISI) and different parameters for the channel, where we considered cases of signal delay similar for EPA (extended pedestrian a model (EPA) standards). In this paper, we estimate the effectiveness of compensation for signal distortion in radio channels with fading on the basis coded orthogonal frequency-division multiplexing (COFDM) technology, an adaptive equalizer, amplifiers on the transmitter side and a normalizer on t he receiver side, which is an acute problem in the field of wireless communication. This system can be applied to transmit better quality high-resolution radiological images over a wireless network inside a building and for a model analogous of pedestrian traffic.

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Section: Introductionmentioning

confidence: 99%

Interference immunity and energy efficiency of digital communications systems in multipath channel with fading

Tashatov

Seksembayeva

Ovechkin

et al. 2022

IJEECS

View full text Add to dashboard Cite

show abstract

“…Meanwhile, chaos theory and stochastic resonance (SR) are also used to detect the * Author to whom any correspondence should be addressed. characteristic information of the amplitude and phase of specific frequency components, but actually both of they distort the original signal [7][8][9][10]. Both DLIA and chaos theory can be directly analyzed and calculated [1][2][3]7].…”

Section: Introductionmentioning

confidence: 99%

“…characteristic information of the amplitude and phase of specific frequency components, but actually both of they distort the original signal [7][8][9][10]. Both DLIA and chaos theory can be directly analyzed and calculated [1][2][3]7]. They are simple and effective.…”

Section: Introductionmentioning

confidence: 99%

“…They are simple and effective. But the weak signal detection based on chaos theory has strict requirements for SNR threshold [7]. The weak signal detection method based on chaos theory uses strong immunity to noise and extreme sensitivity to useful signals to achieve the purpose of detecting the existence of weak signals [8].…”

Section: Introductionmentioning

confidence: 99%

“…The weak signal detection method based on chaos theory uses strong immunity to noise and extreme sensitivity to useful signals to achieve the purpose of detecting the existence of weak signals [8]. Instead, SR uses noise to enhance the useful signal to make the weak signal to be measured more obvious [7][8][9][10][11]. The noise in the signal to be measured is regarded as a beneficial component by SR, which can enhance the signal of interest with a nonlinear system [9].…”

Section: Introductionmentioning

confidence: 99%

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Research on weak signal detection of integral average digital lock-in amplifier

Chen

Wei

Chen

et al. 2021

Meas. Sci. Technol.

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In the process of detecting the amplitude and phase of the weak signal based on digital lock-in amplifier (DLIA), a low-pass filter (LPF) with an extremely low cut-off frequency is required. Even so, the effect is often not good. The detection results of amplitude and phase of weak signal are distorted and fluctuate sharply. To eliminate the difficulty of LPF design, and to reduce the distortion and output fluctuation of detection results of DLIA, this paper proposes a weak signal detection method based on integral average digital lock-in amplifier (IADLIA), which can be used for weak signal detection under strong noise. This method optimizes the structure of the traditional DLIA based on the principle of cross-correlation detection. And then this paper analyzes the influence of the cut-off frequency and signal-to-noise ratio of the LPF on the detection accuracy and output stability of the weak signal amplitude and phase. Finally, the corresponding weak-signal amplitude at the bearing rotating frequency is accurately detected by the proposed method, and the accurate identification of bearing faults is realized. The experimental results show that the IADLIA is characterized by stable output, strong anti-interference ability and high output accuracy. The proposed method can accurately detect the amplitude and phase information of the weak signal in a strong noise environment, get rid of the structure of LPF, and the overall performance is better than the traditional DLIA.

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Water Quality and Dynamic Time Series Based on Meteorological Variables at the Muisne Station Located in the Bunche Enclosure, Esmeraldas, Ecuador

Carrera-Villacrés

Chicaiza

Choloquinga

et al. 2023

Communications in Computer and Information Science

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Suppression method of inter-symbol interference in communication system based on mathematical chaos theory

Cited by 7 publications

References 20 publications

Interference immunity and energy efficiency of digital communications systems in multipath channel with fading

Interference immunity and energy efficiency of digital communications systems in multipath channel with fading

Research on weak signal detection of integral average digital lock-in amplifier

Water Quality and Dynamic Time Series Based on Meteorological Variables at the Muisne Station Located in the Bunche Enclosure, Esmeraldas, Ecuador

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